Jump to content

1979 Pacific hurricane season: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
Tag: Reverted
 
(22 intermediate revisions by 13 users not shown)
Line 1: Line 1:
{{Short description|none}} <!-- "none" is a legitimate description when the title is already adequate; see [[WP:SDNONE]] -->
{{good article}}
{{good article}}
{{Infobox tropical cyclone season
{{Short description|Hurricane season in the Pacific Ocean}}
| Basin = EPac
{{Infobox hurricane season
| Year = 1979
| Basin=EPac
| Track = 1979 Pacific hurricane season summary map.png
| Year=1979
| First storm formed = May 31, 1979
| Track=1979 Pacific hurricane season summary map.png
| First storm formed=May 31, 1979
| Last storm dissipated = November 18, 1979
| Strongest storm name = Ignacio
| Last storm dissipated=November 18, 1979
| Strongest storm name=Ignacio
| Strongest storm pressure = 938
| Strongest storm pressure=938
| Strongest storm winds = 125
| Average wind speed = 1
| Strongest storm winds=125
| Total storms = 10
| Average wind speed=1
| Total storms=10
| Total hurricanes = 6
| Total hurricanes=6
| Total intense = 4
| Fatalities = 2
| Total intense=4
| Damages = None
| Fatalities=2
| Inflated =
| Damages=None
| five seasons = [[1977 Pacific hurricane season|1977]], [[1978 Pacific hurricane season|1978]], '''1979''', [[1980 Pacific hurricane season|1980]], [[1981 Pacific hurricane season|1981]]
| Inflated=
| Atlantic season = 1979 Atlantic hurricane season
| five seasons=[[1977 Pacific hurricane season|1977]], [[1978 Pacific hurricane season|1978]], '''1979''', [[1980 Pacific hurricane season|1980]], [[1981 Pacific hurricane season|1981]]
|Atlantic season=1979 Atlantic hurricane season
| West Pacific season = 1979 Pacific typhoon season
|West Pacific season=1979 Pacific typhoon season
| North Indian season = 1979 North Indian Ocean cyclone season
|North Indian season=1979 North Indian Ocean cyclone season
}}
}}
The '''1979 Pacific hurricane season''' was an inactive season, featuring 10 named storms, 6 hurricanes, and 4 major hurricanes. It featured zero [[tropical cyclone]]s in the Central Pacific,{{#tag:ref|The Central Pacific basin describes the region of the Pacific between the [[140th meridian west]] and the [[International Date Line]].<ref name="cpac" />|name="cpac"|group="nb"}} the most recent occurrence on record as of 2021. An average year sees four to five tropical cyclones in that basin.<ref name="cpac">{{cite web|author=John Bravender|title=2021 Hurricane Season Summary for the Central Pacific Basin|url=https://www.weather.gov/media/hfo/2021_HurricaneSeasonSummary.pdf|publisher=[[National Oceanic and Atmospheric Administration]]|accessdate=January 5, 2022}}</ref>
The '''1979 Pacific hurricane season''' was an inactive North [[Pacific hurricane]] season, featuring 10 [[Tropical cyclone naming|named storms]], 6 hurricanes, and 4 major hurricanes.{{#tag:ref|A "major" hurricane is one that reaches Category&nbsp;3 or higher on the [[Saffir–Simpson scale]]; this corresponds to having winds of at least {{cvt|96|kn|mph km/h|order=out}}.<ref>{{cite web |title=The Saffir-Simpson Hurricane Wind Scale |url=https://www.nhc.noaa.gov/pdf/sshws.pdf |publisher=National Hurricane Center |location= Miami Florida |access-date=February 28, 2024 }}</ref>|group="nb"}} All [[tropical cyclone]] activity this season was confined to the Eastern Pacific, east of [[140th meridian west|140°W]]. For the first time since [[1977 Pacific hurricane season|1977]], no tropical cyclones formed in, or entered into the Central Pacific, between 140°W and the [[International Date Line]].<ref name="CPTCR 1979">{{cite report|title=Tropical Cyclone Report: Tropical Cyclones 1979|url=https://www.nhc.noaa.gov/data/tcr/CP1979_Seasonal_TCR.pdf|publisher=Central Pacific Hurricane Center|location=Honolulu Hawaii|year=1981|access-date=February 28, 2024}}</ref>

Seasonal activity in 1979 remained within the confines of a traditional hurricane season, which begins on May&nbsp;15 and ends on November&nbsp;30 in the East Pacific basin.{{#tag:ref|Had any systems developed within the Central Pacific, they were most likely to form between June&nbsp;1 and November&nbsp;30, the conventional dates of hurricane season there.<ref name="cpac" />|name="season"|group="nb"}} Those dates conventionally delimit the period during each year when most tropical cyclones occur.<ref>{{cite web|title=Hurricanes: Frequently Asked Questions|url=https://www.aoml.noaa.gov/hrd-faq/|work=[[Atlantic Oceanographic and Meteorological Laboratory]]|publisher=National Oceanic and Atmospheric Administration|accessdate=January 5, 2022}}</ref> The season's first system, Andres, developed on May&nbsp;31, while the year's final cyclone, Jimena, dissipated on November&nbsp;18. In early June, Andres moved onshore Mexico as a minimal hurricane, while in late October, Ignacio struck the coastline as a tropical depression. Impacts from those storms were minimal, as were the effects of the preponderance of systems during the season. No casualties or damage were reported onshore, but two fishermen drowned offshore.<ref name="1979tc">{{Cite journal|author=Emil B. Gunther|year=1980|title=Eastern North Pacific Tropical Cyclones of 1979|journal=Monthly Weather Review|volume=108|issue=5|pages=631–641|publisher=[[Eastern Pacific Hurricane Center]]|doi=10.1175/1520-0493(1980)108<0631:ENPTCO>2.0.CO;2|bibcode=1980MWRv..108..631G|doi-access=free}}</ref>


The season officially started on May&nbsp;15, 1979 in the Eastern Pacific and on June&nbsp;1 in the Central Pacific; they both ended on November&nbsp;30, 1979. These dates conventionally delimit the period of each year when most [[tropical cyclogenesis|tropical cyclones form]] in these basins.<ref>{{cite web|title=Hurricanes: Frequently Asked Questions|url=https://www.aoml.noaa.gov/hrd-faq/|work=[[Atlantic Oceanographic and Meteorological Laboratory]]|publisher=National Oceanic and Atmospheric Administration|accessdate=January 5, 2022}}</ref> The season's first storm, Andres, developed on May&nbsp;31, while its last, Jimena, dissipated on November&nbsp;18. In early June, Andres moved onshore Mexico as a minimal hurricane, while in late October, Ignacio struck the coastline as a tropical depression. Impacts from those storms were minimal, as were the effects of the preponderance of systems during the season. No casualties or damage were reported onshore, but two fishermen drowned offshore.<ref name="1979tc">{{Cite journal|author=Emil B. Gunther|year=1980|title=Eastern North Pacific Tropical Cyclones of 1979|journal=Monthly Weather Review|volume=108|issue=5|pages=631–641|publisher=[[Eastern Pacific Hurricane Center]]|doi=10.1175/1520-0493(1980)108<0631:ENPTCO>2.0.CO;2|bibcode=1980MWRv..108..631G|doi-access=free}}</ref>
__TOC__
__TOC__
{{clear}}
{{clear}}


== Systems ==
== Systems ==
{{center|<timeline>
<div style="text-align: center;">
<timeline>
ImageSize = width:800 height:190
ImageSize = width:800 height:190
PlotArea = top:10 bottom:80 right:20 left:20
PlotArea = top:10 bottom:80 right:20 left:20
Line 42: Line 40:
ScaleMinor = grid:black unit:month increment:1 start:01/05/1979
ScaleMinor = grid:black unit:month increment:1 start:01/05/1979


Colors =
Colors =
id:canvas value:gray(0.88)
id:canvas value:gray(0.88)
id:GP value:red
id:GP value:red
id:TD value:rgb(0.38,0.73,1) legend:Tropical_Depression_=≤38_mph_(0-62_km/h)
id:TD value:rgb(0.43,0.76,0.92) legend:Tropical_Depression_=_≤38_mph_(≤62_km/h)
id:TS value:rgb(0,0.98,0.96) legend:Tropical_Storm_=_39-73_mph_(63–117 km/h)
id:TS value:rgb(0.3,1,1) legend:Tropical_Storm_=_39–73_mph_(63–117_km/h)
id:C1 value:rgb(1,0.97,0.58) legend:Category_1_=_74–95_mph_(119–153_km/h)
id:C1 value:rgb(1,1,0.85) legend:Category_1_=_74–95_mph_(118–153_km/h)
id:C2 value:rgb(1,0.85,0.13) legend:Category_2_=_96–110_mph_(154–177_km/h)
id:C2 value:rgb(1,0.85,0.55) legend:Category_2_=_96–110_mph_(154–177_km/h)
id:C3 value:rgb(1,0.56,0.13) legend:Category_3_=_111–129_mph_(178–208-km/h)
id:C3 value:rgb(1,0.62,0.35) legend:Category_3_=_111–129_mph_(178–208_km/h)
id:C4 value:rgb(1,0.38,0.38) legend:Category_4_=_130–156_mph_(209–251_km/h)
id:C4 value:rgb(1,0.45,0.54) legend:Category_4_=_130–156_mph_(209–251_km/h)
id:C5 value:rgb(0.77,0.39,0.85) legend:Category_5_=_≥157_mph_(≥252_km/h)
id:C5 value:rgb(0.55,0.46,0.90) legend:Category_5_=_≥157_mph_(≥252_km/h)


Backgroundcolors = canvas:canvas
Backgroundcolors = canvas:canvas
Line 61: Line 59:
PlotData=
PlotData=
barset:Hurricane width:11 align:left fontsize:S shift:(4,-4) anchor:till
barset:Hurricane width:11 align:left fontsize:S shift:(4,-4) anchor:till
from:31/05/1979 till:01/06/1979 color:TD text:"One (TD)"
from:31/05/1979 till:04/06/1979 color:C2 text:"Andres (C2)"
from:31/05/1979 till:04/06/1979 color:C2 text:"Andres (C2)"
from:21/06/1979 till:25/06/1979 color:TS text:"Blanca (TS)"
from:21/06/1979 till:25/06/1979 color:TS text:"Blanca (TS)"
from:14/07/1979 till:16/07/1979 color:TS text:"Carlos (TS)"
from:14/07/1979 till:16/07/1979 color:TS text:"Carlos (TS)"
from:16/07/1979 till:16/07/1979 color:TD text:"Five (TD)"
from:17/07/1979 till:23/07/1979 color:C3 text:"Dolores (C3)"
from:17/07/1979 till:23/07/1979 color:C3 text:"Dolores (C3)"
from:17/08/1979 till:24/08/1979 color:C4 text:"Enrique (C4)"
from:17/08/1979 till:24/08/1979 color:C4 text:"Enrique (C4)"
barset:break
from:21/08/1979 till:25/08/1979 color:C3 text:"Fefa (C3)"
from:21/08/1979 till:25/08/1979 color:C3 text:"Fefa (C3)"
from:04/09/1979 till:04/09/1979 color:TD text:"Nine (TD)"
barset:break
from:08/09/1979 till:13/09/1979 color:C1 text:"Guillermo (C1)"
from:08/09/1979 till:13/09/1979 color:C1 text:"Guillermo (C1)"
from:04/10/1979 till:06/10/1979 color:TS text:"Hilda (TS)"
from:04/10/1979 till:06/10/1979 color:TS text:"Hilda (TS)"
Line 89: Line 90:


</timeline>
</timeline>
}}{{Least ACE Pacific hurricane seasons}}
</div>





















=== Hurricane Andres ===
=== Hurricane Andres ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Andres 1979-06-03 1845Z.png
| Image = Andres 1979-06-03 1845Z.png
|Track=Andres 1979 track.png
| Track = Andres 1979 track.png
|Formed=May 31
| Formed = May 31
|Dissipated=June 4
| Dissipated = June 4
|1-min winds=85
| 1-min winds = 85
|Prepressure=≤
| Prepressure =
|Pressure=992
| Pressure = 992
}}
}}
A tropical disturbance developed south of the [[Gulf of Tehuantepec]] early on May&nbsp;31, and became a tropical depression at 18:00&nbsp;UTC that day. The system coalesced into Tropical Storm Andres by 06:00&nbsp;UTC on June&nbsp;2 as it curved from west to north-northwest. It then became the season's first hurricane around 18:00&nbsp;UTC on June&nbsp;3. Later that day, forecasters observed a small [[Eye (cyclone)|eye]] on [[Weather satellite|visible satellite imagery]]. One of many ships encountered the storm after this time, measuring an inner core 21&nbsp;miles (34&nbsp;km) in radius. The cyclone attained its peak as a Category&nbsp;2 hurricane with winds of 100&nbsp;mph (155&nbsp;km/h) around 00:00&nbsp;UTC on June&nbsp;4. Andres veered northwest and began to weaken, striking the coastline as a minimal hurricane about 105&nbsp;miles (165&nbsp;km) east of Manzanillo at 13:00&nbsp;UTC. The system transitioned into an [[extratropical cyclone]] five hours later.<ref name="1979tc" />
A tropical disturbance developed south of the [[Gulf of Tehuantepec]] early on May&nbsp;31, and became a tropical depression at 18:00&nbsp;UTC that day. The system coalesced into Tropical Storm Andres by 06:00&nbsp;UTC on June&nbsp;2 as it curved from west to north-northwest. It then became the season's first hurricane around 18:00&nbsp;UTC on June&nbsp;3. Later that day, forecasters observed a small [[Eye (cyclone)|eye]] on [[Weather satellite|visible satellite imagery]]. One of many ships encountered the storm after this time, measuring an inner core {{convert|21|mi|km}} in radius. The cyclone attained its peak as a Category&nbsp;2 hurricane with winds of {{convert|100|mph|km/h|abbr=on}} around 00:00&nbsp;UTC on June&nbsp;4. Andres veered northwest and began to weaken, striking the coastline as a minimal hurricane about {{convert|105|mi|km}} east of Manzanillo at 13:00&nbsp;UTC. The system transitioned into an [[extratropical cyclone]] five hours later.<ref name="1979tc" />


All flights inbound to [[Acapulco]], [[Guerrero]], were canceled on June&nbsp;3 but resumed the next day following Andres' passage. Torrential rainfall triggered flooding which inundated homes and floated cars left on streets. High winds also downed power lines, leaving many residents without electricity. Offshore, two fishermen were killed after their boat capsized amidst rough seas. The crew of a [[cargo ship]] rescued four people from the luxury yacht ''Florida II'', which sank.<ref name="Andres1">{{cite news|title=Hurricane Andrew|url=https://www.newspapers.com/clip/91926906/|newspaper=[[Tampa Times]]|page=8|date=June 5, 1979|accessdate=January 5, 2022|location=Tampa, Florida|via=Newspapers.com}}</ref>
All flights inbound to [[Acapulco]], [[Guerrero]], were canceled on June&nbsp;3 but resumed the next day following Andres' passage. Torrential rainfall triggered flooding which inundated homes and floated cars left on streets. High winds also downed power lines, leaving many residents without electricity. Offshore, two fishermen were killed after their boat capsized amidst rough seas. The crew of a [[cargo ship]] rescued four people from the luxury yacht ''Florida II'', which sank.<ref name="Andres1">{{cite news|title=Hurricane Andrew|url=https://www.newspapers.com/clip/91926906/|newspaper=[[Tampa Times]]|page=8|date=June 5, 1979|accessdate=January 5, 2022|location=Tampa, Florida|via=Newspapers.com}}</ref>
Line 109: Line 129:
=== Tropical Storm Blanca ===
=== Tropical Storm Blanca ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Blanca Jun 21 1979 2128Z.png
| Image = Blanca Jun 21 1979 2128Z.png
|Track=Blanca 1979 track.png
| Track = Blanca 1979 track.png
|Formed=June 21
| Formed = June 21
|Dissipated=June 25
| Dissipated = June 25
|1-min winds=45
| 1-min winds = 45
}}
}}
A westward-moving tropical disturbance crossed [[Costa Rica]] and [[Panama]] into the East Pacific on June&nbsp;17. The system was slow to organize initially, but developed into a tropical depression by 06:00&nbsp;UTC on June&nbsp;21. It further intensified and became Tropical Storm Blanca around 00:00&nbsp;UTC on June&nbsp;22. Blanca moved over warm waters and eventually attained peak winds of 50&nbsp;mph (85&nbsp;km/h) on June&nbsp;22–23. The cyclone curved west-northwest and began to weaken, particularly after it encountered colder waters. It dissipated far away from land after 12:00&nbsp;UTC on June&nbsp;25.<ref name="1979tc"/>
A westward-moving tropical disturbance crossed [[Costa Rica]] and [[Panama]] into the East Pacific on June&nbsp;17. The system was slow to organize initially, but developed into a tropical depression by 06:00&nbsp;UTC on June&nbsp;21. It further intensified and became Tropical Storm Blanca around 00:00&nbsp;UTC on June&nbsp;22. Blanca moved over warm waters and eventually attained peak winds of {{convert|50|mph|km/h|abbr=on}} on June&nbsp;22–23. The cyclone curved west-northwest and began to weaken, particularly after it encountered colder waters. It dissipated far away from land after 12:00&nbsp;UTC on June&nbsp;25.<ref name="1979tc"/>
{{clear}}
{{clear}}


=== Tropical Storm Carlos ===
=== Tropical Storm Carlos ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Carlos Jul 14 1979 2230Z.png
| Image = Carlos Jul 14 1979 2230Z.png
|Track=Carlos 1979 track.png
| Track = Carlos 1979 track.png
|Formed=July 14
| Formed = July 14
|Dissipated=July 16
| Dissipated = July 16
|1-min winds=45
| 1-min winds = 45
}}
}}
A tropical disturbance formed in the Gulf of Tehuantepec on July&nbsp;11 and developed into a tropical depression around 18:00&nbsp;UTC on July&nbsp;14. The cyclone moved swiftly westward, becoming Tropical Storm Carlos within six hours and reaching peak winds of 50&nbsp;mph (85&nbsp;km/h) on July&nbsp;15. Carlos passed about 20&nbsp;miles (30&nbsp;km) south of [[Socorro Island]], soon crossing into cooler waters and drier air. The cyclone dissipated southwest of [[Baja California Sur]] after 06:00&nbsp;UTC on July&nbsp;16.<ref name="1979tc"/>
A tropical disturbance formed in the Gulf of Tehuantepec on July&nbsp;11 and developed into a tropical depression around 18:00&nbsp;UTC on July&nbsp;14. The cyclone moved swiftly westward, becoming Tropical Storm Carlos within six hours and reaching peak winds of {{convert|50|mph|km/h|abbr=on}} on July&nbsp;15. Carlos passed about {{convert|20|mi|km}} south of [[Socorro Island]], soon crossing into cooler waters and drier air. The cyclone dissipated southwest of [[Baja California Sur]] after 06:00&nbsp;UTC on July&nbsp;16.<ref name="1979tc"/>

{{clear}}
{{clear}}


=== Hurricane Dolores ===
=== Hurricane Dolores ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Dolores 1979-07-20 2215Z.png
| Image = Dolores 1979-07-20 2215Z.png
|Track=Dolores 1979 track.png
| Track = Dolores 1979 track.png
|Formed=July 17
| Formed = July 17
|Dissipated=July 23
| Dissipated = July 23
|1-min winds=105
| 1-min winds = 105
}}
}}
An area of disturbed weather was observed south of [[Guatemala]] on July&nbsp;14.<ref name="1979tc" /> It developed into a tropical depression around 06:00&nbsp;UTC on July&nbsp;17 and became Tropical Storm Dolores twelve hours later.{{EPAC hurricane best track}} Moving along the south side of an upper-level [[High-pressure area|area of high pressure]], the cyclone passed over warm waters which facilitated its continued development.<ref name="1979tc" /> It became a hurricane at 18:00&nbsp;UTC on July&nbsp;18 and then entered a period of [[rapid intensification]], which coincided with the formation of a well-defined eye on satellite imagery.<ref name="1979tc" /> Dolores strengthened into the season's first major hurricane around 06:00&nbsp;UTC on July&nbsp;20 and, after a brief fluctuation in intensity, attained peak winds of 120&nbsp;mph (195&nbsp;km/h) early on July&nbsp;21.{{EPAC hurricane best track}} High pressure shifted northeast into northern Mexico, causing Dolores to curve northwest into cooler waters and drier air. The system dissipated well to the west of [[Baja California]] after 18:00&nbsp;UTC on July&nbsp;23.<ref name="1979tc" />
An area of disturbed weather was observed south of [[Guatemala]] on July&nbsp;14.<ref name="1979tc" /> It developed into a tropical depression around 06:00&nbsp;UTC on July&nbsp;17 and became Tropical Storm Dolores twelve hours later.{{EPAC hurricane best track}} Moving along the south side of an upper-level [[High-pressure area|area of high pressure]], the cyclone passed over warm waters which facilitated its continued development.<ref name="1979tc" /> It became a hurricane at 18:00&nbsp;UTC on July&nbsp;18 and then entered a period of [[rapid intensification]], which coincided with the formation of a well-defined eye on satellite imagery.<ref name="1979tc" /> Dolores strengthened into the season's first major hurricane around 06:00&nbsp;UTC on July&nbsp;20 and, after a brief fluctuation in intensity, attained peak winds of {{convert|120|mph|km/h|abbr=on}} early on July&nbsp;21.{{EPAC hurricane best track}} High pressure shifted northeast into northern Mexico, causing Dolores to curve northwest into cooler waters and drier air. The system dissipated well to the west of [[Baja California]] after 18:00&nbsp;UTC on July&nbsp;23.<ref name="1979tc" />

{{clear}}
{{clear}}


=== Hurricane Enrique ===
=== Hurricane Enrique ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Enrique 1979-08-22 1745Z.png
| Image = Enrique 1979-08-22 1745Z.png
|Track=Enrique 1979 track.png
| Track = Enrique 1979 track.png
|Formed=August 17
| Formed = August 17
|Dissipated=August 24
| Dissipated = August 24
|1-min winds=125
| 1-min winds = 125
}}
}}
After a nearly month-long dearth in tropical-cyclone activity,<ref name="1979tc" /> a new tropical depression formed over the open East Pacific around 18:00&nbsp;UTC on August&nbsp;17.{{EPAC hurricane best track}} It moved west over very warm waters,<ref name="1979tc" /> intensifying into Tropical Storm Enrique six hours after formation, and into a hurricane by 00:00&nbsp;UTC on August&nbsp;19. After maintaining that strength for a few days,{{EPAC hurricane best track}} the cyclone encountered dry air and slightly cooler waters, which caused it to weaken to a tropical storm. Enrique soon moved into a more conducive environment again, however, and began rapid intensification.<ref name="1979tc" /> Over a 24-hour period ending at 18:00&nbsp;UTC on August&nbsp;22, the storm's maximum winds increased from 70&nbsp;mph (110&nbsp;km/h) to a peak of 145&nbsp;mph (230&nbsp;km/h), ranking as a Category&nbsp;4 hurricane.{{EPAC hurricane best track}} Enrique moved toward the northwest, and that trajectory brought the storm over cold waters once again, resulting in rapid weakening.<ref name="1979tc" /> The system dissipated after 18:00&nbsp;UTC on August&nbsp;24.{{EPAC hurricane best track}}
After a nearly month-long dearth in tropical-cyclone activity,<ref name="1979tc" /> a new tropical depression formed over the open East Pacific around 18:00&nbsp;UTC on August&nbsp;17.{{EPAC hurricane best track}} It moved west over very warm waters,<ref name="1979tc" /> intensifying into Tropical Storm Enrique six hours after formation, and into a hurricane by 00:00&nbsp;UTC on August&nbsp;19. After maintaining that strength for a few days,{{EPAC hurricane best track}} the cyclone encountered dry air and slightly cooler waters, which caused it to weaken to a tropical storm. Enrique soon moved into a more conducive environment again, however, and began rapid intensification.<ref name="1979tc" /> Over a 24-hour period ending at 18:00&nbsp;UTC on August&nbsp;22, the storm's maximum winds increased from {{convert|70|mph|km/h|abbr=on}} to a peak of {{convert|145|mph|km/h|abbr=on}}, ranking as a Category&nbsp;4 hurricane.{{EPAC hurricane best track}} Enrique moved toward the northwest, and that trajectory brought the storm over cold waters once again, resulting in rapid weakening.<ref name="1979tc" /> The system dissipated after 18:00&nbsp;UTC on August&nbsp;24.{{EPAC hurricane best track}}
{{clear}}
{{clear}}


=== Hurricane Fefa ===
=== Hurricane Fefa ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Fefa Aug 22 1979 2219Z.png
| Image = Fefa Aug 22 1979 2219Z.png
|Track=Fefa 1979 track.png
| Track = Fefa 1979 track.png
|Formed=August 21
| Formed = August 21
|Dissipated=August 25
| Dissipated = August 25
|1-min winds=100
| 1-min winds = 100
}}
}}
A tropical disturbance developed south-southeast of Acapulco on August&nbsp;19. Positioned on the south side of upper-level [[Ridge (meteorology)|ridging]], the system moved swiftly west-northwest and organized into a tropical depression around 00:00&nbsp;UTC on August&nbsp;21.<ref name="1979tc" />{{EPAC hurricane best track}} Continued development over very warm waters allowed the depression to become Tropical Storm Fefa within six hours, which then intensified into a hurricane by 06:00&nbsp;UTC on August&nbsp;22. Later that day, Fefa developed a well-defined eye.<ref name="1979tc" /> It attained its peak as a Category&nbsp;3 hurricane with winds of 115&nbsp;mph (185&nbsp;km/h) at 12:00&nbsp;UTC on August&nbsp;23.{{EPAC hurricane best track}} A persistent, rapid west-northwest track brought Fefa over increasingly cool waters,<ref name="1979tc" /> which caused weakening. The system dissipated over the open East Pacific after 00:00&nbsp;UTC on August&nbsp;25.{{EPAC hurricane best track}}
A tropical disturbance developed south-southeast of Acapulco on August&nbsp;19. Positioned on the south side of upper-level [[Ridge (meteorology)|ridging]], the system moved swiftly west-northwest and organized into a tropical depression around 00:00&nbsp;UTC on August&nbsp;21.<ref name="1979tc" />{{EPAC hurricane best track}} Continued development over very warm waters allowed the depression to become Tropical Storm Fefa within six hours, which then intensified into a hurricane by 06:00&nbsp;UTC on August&nbsp;22. Later that day, Fefa developed a well-defined eye.<ref name="1979tc" /> It attained its peak as a Category&nbsp;3 hurricane with winds of {{convert|115|mph|km/h|abbr=on}} at 12:00&nbsp;UTC on August&nbsp;23.{{EPAC hurricane best track}} A persistent, rapid west-northwest track brought Fefa over increasingly cool waters,<ref name="1979tc" /> which caused weakening. The system dissipated over the open East Pacific after 00:00&nbsp;UTC on August&nbsp;25.{{EPAC hurricane best track}}

{{clear}}
{{clear}}


=== Hurricane Guillermo ===
=== Hurricane Guillermo ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Guillermo Sept 11 1979 2210Z.jpg
| Image = Guillermo Sept 11 1979 2210Z.jpg
|Track=Guillermo 1979 track.png
| Track = Guillermo 1979 track.png
|Formed=September 8
| Formed = September 8
|Dissipated=September 13
| Dissipated = September 13
|1-min winds=65
| 1-min winds = 65
|Prepressure=≤
| Prepressure =
|Pressure=994
| Pressure = 994
}}
}}
An area of disturbed weather formed south of the Gulf of Tehuantepec on September&nbsp;7.<ref name="1979tc" /> It organized into a tropical depression around 18:00&nbsp;UTC on September&nbsp;8 and intensified into Tropical Storm Guillermo twelve hours later.{{EPAC hurricane best track}} Flow around the southwest side of upper-level ridging directed the storm to curve northwestward, while the system's track over warm waters allowed it to intensify. It became a hurricane with peak winds of 75&nbsp;mph (120&nbsp;km/h) around 18:00&nbsp;UTC on September&nbsp;11. Guillermo decelerated over cooler waters south of Baja California,<ref name="1979tc" /> ultimately dissipating after 12:00&nbsp;UTC on September&nbsp;13.{{EPAC hurricane best track}}
An area of disturbed weather formed south of the Gulf of Tehuantepec on September&nbsp;7.<ref name="1979tc" /> It organized into a tropical depression around 18:00&nbsp;UTC on September&nbsp;8 and intensified into Tropical Storm Guillermo twelve hours later.{{EPAC hurricane best track}} Flow around the southwest side of upper-level ridging directed the storm to curve northwestward, while the system's track over warm waters allowed it to intensify. It became a hurricane with peak winds of {{convert|75|mph|km/h|abbr=on}} around 18:00&nbsp;UTC on September&nbsp;11. Guillermo decelerated over cooler waters south of Baja California,<ref name="1979tc" /> ultimately dissipating after 12:00&nbsp;UTC on September&nbsp;13.{{EPAC hurricane best track}}

{{clear}}
{{clear}}


=== Tropical Storm Hilda ===
=== Tropical Storm Hilda ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Hilda at peak intensity on October 5th.png
| Image = Hilda at peak intensity on October 5th.png
|Track=Hilda 1979 track.png
| Track = Hilda 1979 track.png
|Formed=October 4
| Formed = October 4
|Dissipated=October 6
| Dissipated = October 6
|1-min winds=40
| 1-min winds = 40
}}
}}
On October&nbsp;1, an area of disturbed weather developed south of Guatemala.<ref name="1979tc" /> It moved west, coalescing into a tropical depression by 00:00&nbsp;UTC on October&nbsp;4. After a short pause in intensification, the depression became Tropical Storm Hilda around 06:00&nbsp;UTC on October&nbsp;5, at which time it reached peak winds of 45&nbsp;mph (75&nbsp;km/h).{{EPAC hurricane best track}} A westward track brought the cyclone over cooler waters,<ref name="1979tc" /> and the brief system dissipated over the open East Pacific after 18:00&nbsp;UTC on October&nbsp;6.{{EPAC hurricane best track}}
On October&nbsp;1, an area of disturbed weather developed south of Guatemala.<ref name="1979tc" /> It moved west, coalescing into a tropical depression by 00:00&nbsp;UTC on October&nbsp;4. After a short pause in intensification, the depression became Tropical Storm Hilda around 06:00&nbsp;UTC on October&nbsp;5, at which time it reached peak winds of {{convert|45|mph|km/h|abbr=on}}.{{EPAC hurricane best track}} A westward track brought the cyclone over cooler waters,<ref name="1979tc" /> and the brief system dissipated over the open East Pacific after 18:00&nbsp;UTC on October&nbsp;6.{{EPAC hurricane best track}}

{{clear}}
{{clear}}


=== Hurricane Ignacio ===
=== Hurricane Ignacio ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Ignacio 1979-10-27 2230Z.jpg
| Image = Ignacio 1979-10-27 2230Z.jpg
|Track=Ignacio 1979 track.png
| Track = Ignacio 1979 track.png
|Formed=October 23
| Formed = October 23
|Dissipated=October 30
| Dissipated = October 30
|1-min winds=125
| 1-min winds = 125
|Pressure=938
| Pressure = 938
}}
}}
Over two weeks after the dissipation of Hilda, a new tropical disturbance formed southwest of Guatemala on October&nbsp;22. It tracked steadily westward, becoming a tropical depression around 18:00&nbsp;UTC on October&nbsp;23 and Tropical Storm Ignacio at 12:00&nbsp;UTC the next day. A curve toward the northwest brought the cyclone over progressively warmer waters,<ref name="1979tc" /> and it reached hurricane intensity around 18:00&nbsp;UTC on October&nbsp;26. Ignacio soon thereafter began a period of rapid intensification, vaulting from Category&nbsp;2 to Category&nbsp;4 intensity within six hours.{{EPAC hurricane best track}} A [[Hurricane Hunters|United States Air Force reconnaissance plane]] investigated the powerful storm at 18:00&nbsp;UTC on October&nbsp;27, finding peak winds of 145&nbsp;mph (230&nbsp;km/h) – tied with Enrique as the strongest of the season – as well as a 25-mile (35-km) diameter eye covered only by broken low-level clouds.
Over two weeks after the dissipation of Hilda, a new tropical disturbance formed southwest of Guatemala on October&nbsp;22. It tracked steadily westward, becoming a tropical depression around 18:00&nbsp;UTC on October&nbsp;23 and Tropical Storm Ignacio at 12:00&nbsp;UTC the next day. A curve toward the northwest brought the cyclone over progressively warmer waters,<ref name="1979tc" /> and it reached hurricane intensity around 18:00&nbsp;UTC on October&nbsp;26. Ignacio soon thereafter began a period of rapid intensification, vaulting from Category&nbsp;2 to Category&nbsp;4 intensity within six hours.{{EPAC hurricane best track}} A [[Hurricane Hunters|United States Air Force reconnaissance plane]] investigated the powerful storm at 18:00&nbsp;UTC on October&nbsp;27, finding peak winds of {{convert|145|mph|km/h|abbr=on}} – tied with Enrique as the strongest of the season – as well as a 25-mile (35-km) diameter eye covered only by broken low-level clouds.

Ignacio turned north and then veered sharply east, entering colder waters. Subsequent reconnaissance of the storm found various changes to its internal structure, including a pinhole eye down to 6&nbsp;miles (10&nbsp;km) in diameter before it ultimately became ill-defined. Ignacio accelerated toward the Mexico coastline, and around 12:00&nbsp;UTC on October&nbsp;30 struck about 160&nbsp;miles (260&nbsp;km) east-southeast of [[Manzanillo, Colima]], with much-weakened winds of 35&nbsp;mph (55&nbsp;km/h).<ref name="1979tc" /> It transitioned into an extratropical cyclone six hours later, then dissipated over the Yucatán Peninsula the next day.{{EPAC hurricane best track}}<ref name="1979tc" />


Ignacio turned north and then veered sharply east, entering colder waters. Subsequent reconnaissance of the storm found various changes to its internal structure, including a pinhole eye down to {{convert|6|mi|km}} in diameter before it ultimately became ill-defined. Ignacio accelerated toward the Mexico coastline, and around 12:00&nbsp;UTC on October&nbsp;30 struck about {{convert|160|mi|km}} east-southeast of [[Manzanillo, Colima]], with much-weakened winds of {{convert|35|mph|km/h|abbr=on}}.<ref name="1979tc" /> It transitioned into an extratropical cyclone six hours later, then dissipated over the Yucatán Peninsula the next day.{{EPAC hurricane best track}}<ref name="1979tc" />
{{clear}}
{{clear}}


=== Tropical Storm Jimena ===
=== Tropical Storm Jimena ===
{{Infobox Hurricane Small
{{Infobox Hurricane Small
|Basin=EPac
| Basin = EPac
|Image=Tropical Storm Jimena Nov 16 1979 1600Z.jpg
| Image = Tropical Storm Jimena Nov 16 1979 1600Z.jpg
|Track=Jimena 1979 track.png
| Track = Jimena 1979 track.png
|Formed=November 15
| Formed = November 15
|Dissipated=November 18
| Dissipated = November 18
|1-min winds=55
| 1-min winds = 55
}}
}}
The final storm of the 1979 season began as a tropical disturbance south of Panama on November&nbsp;13.<ref name="1979tc" /> The system moved generally westward and organized into a tropical depression around 06:00&nbsp;UTC on November&nbsp;15.{{EPAC hurricane best track}} Warm waters aided in the depression's development,<ref name="1979tc" /> and it became Tropical Storm Jimena by 00:00&nbsp;UTC on November&nbsp;16. The cyclone's winds peaked at 65&nbsp;mph (100&nbsp;km/h) around 18:00&nbsp;UTC that day.{{EPAC hurricane best track}} Afterwards, cold and dry northerly winds flowing across the Gulf of Tehuantepec began to affect Jimena, causing it to weaken.<ref name="1979tc" /> The system's center dissipated after 06:00&nbsp;UTC on November&nbsp;18,{{EPAC hurricane best track}} though its remnants were evident on satellite imagery for another three days.<ref name="1979tc" />
The final storm of the 1979 season began as a tropical disturbance south of Panama on November&nbsp;13.<ref name="1979tc" /> The system moved generally westward and organized into a tropical depression around 06:00&nbsp;UTC on November&nbsp;15.{{EPAC hurricane best track}} Warm waters aided in the depression's development,<ref name="1979tc" /> and it became Tropical Storm Jimena by 00:00&nbsp;UTC on November&nbsp;16. The cyclone's winds peaked at {{convert|65|mph|km/h|abbr=on}} around 18:00&nbsp;UTC that day.{{EPAC hurricane best track}} Afterwards, cold and dry northerly winds flowing across the Gulf of Tehuantepec began to affect Jimena, causing it to weaken.<ref name="1979tc" /> The system's center dissipated after 06:00&nbsp;UTC on November&nbsp;18,{{EPAC hurricane best track}} though its remnants were evident on satellite imagery for another three days.<ref name="1979tc" />

{{clear}}
{{clear}}


===Other systems===
===Other systems===
Several unofficial tropical depressions accompanied the documented cyclones in 1979. Shortly before the formation of Andres, a tropical depression developed south of Manzanillo on May&nbsp;31. It curved northwest into cooler waters and dissipated on June&nbsp;1. Another tropical depression was identified north of Carlos on July&nbsp;16. It weakened over cold waters almost immediately, however, dissipating around 12:00&nbsp;UTC that day just offshore Baja California Sur. The last documented tropical depression formed on September&nbsp;4 south of the Gulf of the Tehuantepec. The system moved onshore about 165&nbsp;miles (265&nbsp;km) east-southeast of Acapulco at 18:00&nbsp;UTC that day. It dissipated rapidly once inland.<ref name="1979tc" />
Several unofficial tropical depressions accompanied the documented cyclones in 1979. Shortly before the formation of Andres, a tropical depression developed south of Manzanillo on May&nbsp;31. It curved northwest into cooler waters and dissipated on June&nbsp;1. Another tropical depression was identified north of Carlos on July&nbsp;16. It weakened over cold waters almost immediately, however, dissipating around 12:00&nbsp;UTC that day just offshore Baja California Sur. The last documented tropical depression formed on September&nbsp;4 south of the Gulf of the Tehuantepec. The system moved onshore about {{convert|165|mi|km}} east-southeast of Acapulco at 18:00&nbsp;UTC that day. It dissipated rapidly once inland.<ref name="1979tc" />


== Storm names ==
== Storm names ==
{{Further|Tropical cyclone naming#Eastern and Central Pacific Ocean}}
The following names were used for named storms that formed in the East Pacific in 1979.<ref>{{cite web|title=Tropical Cyclone Names|url=https://www.nhc.noaa.gov/aboutnames.shtml|publisher=[[National Hurricane Center]]|accessdate=January 5, 2022}}</ref> Names that were not assigned are marked in <span style="color:gray;">gray</span>.
The following list of names was used for named storms that formed in the North Pacific Ocean east of [[140th meridian west|140°W]] in 1979.<ref name="NHOP 79">{{cite report|url=https://www.aoml.noaa.gov/general/lib/lib1/nhclib/Publications/NatHurricaneOpsPlans/HOPs-1979.pdf|pages=7, 10|publisher=[[NOAA]] Office of the Federal Coordinator for Meteorological Services and Supporting Research|location=Washington, D.C.|title=National Hurricane Operations Plan|date=May 1979|access-date=January 14, 2024}}</ref> Most of these names were used for the first time, except for ''Blanca'' and ''Dolores'', which were previously used in the old four-year lists.<ref name="ATWC">{{cite web|access-date=February 27, 2024|title=Eastern North Pacific Tropical Cyclone Name History|publisher=Atlantic Tropical Weather Center|url=http://www.atwc.org/pachist.txt|archive-url= https://web.archive.org/web/20070929105925/http://www.atwc.org/pachist.txt|archive-date=September 29, 2007|url-status=dead}}</ref> No [[List of retired Pacific hurricane names|names were retired]] from the list following the season, and it was used again for the [[1985 Pacific hurricane season|1985 season]].<ref name="NHOP 85">{{cite report|url=https://www.aoml.noaa.gov/general/lib/lib1/nhclib/Publications/NatHurricaneOpsPlans/HOPs-1985.PDF|page=3{{hyphen}}8|publisher=[[NOAA]] Office of the Federal Coordinator for Meteorological Services and Supporting Research|location=Washington, D.C.|title=National Hurricane Operations Plan|date=May 1985|access-date=February 28, 2024}}</ref>


{| width="90%"
{| width="90%"
Line 259: Line 273:
* {{tcname unused|Waldo}}
* {{tcname unused|Waldo}}
|}
|}

Had a named storm formed in the North Pacific between 140°W and the [[International Date Line]] in 1979 it would have been assigned a name from the west Pacific's typhoon name list by the [[Joint Typhoon Warning Center]] on [[Guam]].<ref name="NHOP 79"/><ref name="ATWC"/>


==Season effects==
==Season effects==
This is a table of all the storms that formed in the 1979 Pacific hurricane season. It includes their duration, names, affected areas, damages, and death totals. Damage and deaths include totals while the storm was [[extratropical cyclone|extratropical]], a [[tropical wave]], or a [[Low-pressure area|low]], and all the damage figures are in USD.
This is a table of all of the storms that formed in the 1979 Pacific hurricane season. It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 1979 USD.
{{Saffir–Simpson small|align=center}}<center>{{TC stats table start3|year=1979|basin=Pacific hurricane}}
{{Saffir–Simpson small|align=center}}{{TC stats table start3|year=1979|basin=Pacific hurricane|align=center}}
{{TC stats cyclone3|cat=cat2|name=Andres|dates=May&nbsp;31–June&nbsp;4|max-winds=100 (155)|min-press=≤992|areas=[[Mexico]]|damage=None|deaths=2}}<ref name="1979tc" /><ref name="Andres1" />
{{TC stats cyclone3|cat=cat2|name=Andres|dates=May&nbsp;31–June&nbsp;4|max-winds=100 (155)|min-press=≤992|areas=[[Mexico]]|damage=None|deaths=2}}<ref name="1979tc" /><ref name="Andres1" />
{{TC stats cyclone3|cat=storm|name=Blanca|dates=June&nbsp;21–25|max-winds=50 (85)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="1979tc" />
{{TC stats cyclone3|cat=storm|name=Blanca|dates=June&nbsp;21–25|max-winds=50 (85)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="1979tc" />
Line 274: Line 290:
{{TC stats cyclone3|cat=storm|name=Jimena|dates=November&nbsp;15–18|max-winds=65 (100)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="1979tc" />
{{TC stats cyclone3|cat=storm|name=Jimena|dates=November&nbsp;15–18|max-winds=65 (100)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="1979tc" />
{{TC stats table end3|num-cyclones=10|dates=May&nbsp;31–November&nbsp;18|max-winds=145 (230)|min-press=938|tot-areas=|tot-damage=None|tot-deaths=2}}
{{TC stats table end3|num-cyclones=10|dates=May&nbsp;31–November&nbsp;18|max-winds=145 (230)|min-press=938|tot-areas=|tot-damage=None|tot-deaths=2}}
</center>


== See also ==
== See also ==
Line 291: Line 306:
{{Reflist}}
{{Reflist}}


{{Lowest ACE Pacific hurricane seasons}}
== External links ==
* [https://www.nhc.noaa.gov/data/tcr/CP1979_Seasonal_TCR.pdf Central Pacific Hurricane Center's seasonal summary]

{{1979 Pacific hurricane season buttons}}
{{1979 Pacific hurricane season buttons}}
{{TC Decades|Year=1970|basin=Pacific|type=hurricane}}
{{TC Decades|Year=1970|basin=Pacific|type=hurricane}}
{{Tropical cyclone season|1979}}


{{DEFAULTSORT:1979 Pacific Hurricane Season}}
{{DEFAULTSORT:1979 Pacific Hurricane Season}}

Latest revision as of 23:37, 20 November 2024

1979 Pacific hurricane season
Season summary map
Seasonal boundaries
First system formedMay 31, 1979
Last system dissipatedNovember 18, 1979
Strongest storm
NameIgnacio
 • Maximum winds145 mph (230 km/h)
(1-minute sustained)
 • Lowest pressure938 mbar (hPa; 27.7 inHg)
Seasonal statistics
Total storms10
Hurricanes6
Major hurricanes
(Cat. 3+)
4
Total fatalities2
Total damageNone
Related articles
Pacific hurricane seasons
1977, 1978, 1979, 1980, 1981

The 1979 Pacific hurricane season was an inactive North Pacific hurricane season, featuring 10 named storms, 6 hurricanes, and 4 major hurricanes.[nb 1] All tropical cyclone activity this season was confined to the Eastern Pacific, east of 140°W. For the first time since 1977, no tropical cyclones formed in, or entered into the Central Pacific, between 140°W and the International Date Line.[2]

The season officially started on May 15, 1979 in the Eastern Pacific and on June 1 in the Central Pacific; they both ended on November 30, 1979. These dates conventionally delimit the period of each year when most tropical cyclones form in these basins.[3] The season's first storm, Andres, developed on May 31, while its last, Jimena, dissipated on November 18. In early June, Andres moved onshore Mexico as a minimal hurricane, while in late October, Ignacio struck the coastline as a tropical depression. Impacts from those storms were minimal, as were the effects of the preponderance of systems during the season. No casualties or damage were reported onshore, but two fishermen drowned offshore.[4]

Systems

[edit]
Saffir–Simpson scale
Least intense Pacific hurricane seasons[5]
Rank Season ACE value
1 1977 22.3
2 2010 51.2
3 2007 51.6
4 1996 53.9
5 2003 56.6
6 1979 57.4
7 2004 71.1
8 1981 72.8
9 2013 74.8
10 2020 77.3











Hurricane Andres

[edit]
Category 2 hurricane (SSHWS)
 
DurationMay 31 – June 4
Peak intensity100 mph (155 km/h) (1-min);
≤992 mbar (hPa)

A tropical disturbance developed south of the Gulf of Tehuantepec early on May 31, and became a tropical depression at 18:00 UTC that day. The system coalesced into Tropical Storm Andres by 06:00 UTC on June 2 as it curved from west to north-northwest. It then became the season's first hurricane around 18:00 UTC on June 3. Later that day, forecasters observed a small eye on visible satellite imagery. One of many ships encountered the storm after this time, measuring an inner core 21 miles (34 km) in radius. The cyclone attained its peak as a Category 2 hurricane with winds of 100 mph (160 km/h) around 00:00 UTC on June 4. Andres veered northwest and began to weaken, striking the coastline as a minimal hurricane about 105 miles (169 km) east of Manzanillo at 13:00 UTC. The system transitioned into an extratropical cyclone five hours later.[4]

All flights inbound to Acapulco, Guerrero, were canceled on June 3 but resumed the next day following Andres' passage. Torrential rainfall triggered flooding which inundated homes and floated cars left on streets. High winds also downed power lines, leaving many residents without electricity. Offshore, two fishermen were killed after their boat capsized amidst rough seas. The crew of a cargo ship rescued four people from the luxury yacht Florida II, which sank.[6]

Tropical Storm Blanca

[edit]
Tropical storm (SSHWS)
 
DurationJune 21 – June 25
Peak intensity50 mph (85 km/h) (1-min);

A westward-moving tropical disturbance crossed Costa Rica and Panama into the East Pacific on June 17. The system was slow to organize initially, but developed into a tropical depression by 06:00 UTC on June 21. It further intensified and became Tropical Storm Blanca around 00:00 UTC on June 22. Blanca moved over warm waters and eventually attained peak winds of 50 mph (80 km/h) on June 22–23. The cyclone curved west-northwest and began to weaken, particularly after it encountered colder waters. It dissipated far away from land after 12:00 UTC on June 25.[4]

Tropical Storm Carlos

[edit]
Tropical storm (SSHWS)
 
DurationJuly 14 – July 16
Peak intensity50 mph (85 km/h) (1-min);

A tropical disturbance formed in the Gulf of Tehuantepec on July 11 and developed into a tropical depression around 18:00 UTC on July 14. The cyclone moved swiftly westward, becoming Tropical Storm Carlos within six hours and reaching peak winds of 50 mph (80 km/h) on July 15. Carlos passed about 20 miles (32 km) south of Socorro Island, soon crossing into cooler waters and drier air. The cyclone dissipated southwest of Baja California Sur after 06:00 UTC on July 16.[4]

Hurricane Dolores

[edit]
Category 3 hurricane (SSHWS)
 
DurationJuly 17 – July 23
Peak intensity120 mph (195 km/h) (1-min);

An area of disturbed weather was observed south of Guatemala on July 14.[4] It developed into a tropical depression around 06:00 UTC on July 17 and became Tropical Storm Dolores twelve hours later.[7] Moving along the south side of an upper-level area of high pressure, the cyclone passed over warm waters which facilitated its continued development.[4] It became a hurricane at 18:00 UTC on July 18 and then entered a period of rapid intensification, which coincided with the formation of a well-defined eye on satellite imagery.[4] Dolores strengthened into the season's first major hurricane around 06:00 UTC on July 20 and, after a brief fluctuation in intensity, attained peak winds of 120 mph (190 km/h) early on July 21.[7] High pressure shifted northeast into northern Mexico, causing Dolores to curve northwest into cooler waters and drier air. The system dissipated well to the west of Baja California after 18:00 UTC on July 23.[4]

Hurricane Enrique

[edit]
Category 4 hurricane (SSHWS)
 
DurationAugust 17 – August 24
Peak intensity145 mph (230 km/h) (1-min);

After a nearly month-long dearth in tropical-cyclone activity,[4] a new tropical depression formed over the open East Pacific around 18:00 UTC on August 17.[7] It moved west over very warm waters,[4] intensifying into Tropical Storm Enrique six hours after formation, and into a hurricane by 00:00 UTC on August 19. After maintaining that strength for a few days,[7] the cyclone encountered dry air and slightly cooler waters, which caused it to weaken to a tropical storm. Enrique soon moved into a more conducive environment again, however, and began rapid intensification.[4] Over a 24-hour period ending at 18:00 UTC on August 22, the storm's maximum winds increased from 70 mph (110 km/h) to a peak of 145 mph (233 km/h), ranking as a Category 4 hurricane.[7] Enrique moved toward the northwest, and that trajectory brought the storm over cold waters once again, resulting in rapid weakening.[4] The system dissipated after 18:00 UTC on August 24.[7]

Hurricane Fefa

[edit]
Category 3 hurricane (SSHWS)
 
DurationAugust 21 – August 25
Peak intensity115 mph (185 km/h) (1-min);

A tropical disturbance developed south-southeast of Acapulco on August 19. Positioned on the south side of upper-level ridging, the system moved swiftly west-northwest and organized into a tropical depression around 00:00 UTC on August 21.[4][7] Continued development over very warm waters allowed the depression to become Tropical Storm Fefa within six hours, which then intensified into a hurricane by 06:00 UTC on August 22. Later that day, Fefa developed a well-defined eye.[4] It attained its peak as a Category 3 hurricane with winds of 115 mph (185 km/h) at 12:00 UTC on August 23.[7] A persistent, rapid west-northwest track brought Fefa over increasingly cool waters,[4] which caused weakening. The system dissipated over the open East Pacific after 00:00 UTC on August 25.[7]

Hurricane Guillermo

[edit]
Category 1 hurricane (SSHWS)
 
DurationSeptember 8 – September 13
Peak intensity75 mph (120 km/h) (1-min);
≤994 mbar (hPa)

An area of disturbed weather formed south of the Gulf of Tehuantepec on September 7.[4] It organized into a tropical depression around 18:00 UTC on September 8 and intensified into Tropical Storm Guillermo twelve hours later.[7] Flow around the southwest side of upper-level ridging directed the storm to curve northwestward, while the system's track over warm waters allowed it to intensify. It became a hurricane with peak winds of 75 mph (121 km/h) around 18:00 UTC on September 11. Guillermo decelerated over cooler waters south of Baja California,[4] ultimately dissipating after 12:00 UTC on September 13.[7]

Tropical Storm Hilda

[edit]
Tropical storm (SSHWS)
 
DurationOctober 4 – October 6
Peak intensity45 mph (75 km/h) (1-min);

On October 1, an area of disturbed weather developed south of Guatemala.[4] It moved west, coalescing into a tropical depression by 00:00 UTC on October 4. After a short pause in intensification, the depression became Tropical Storm Hilda around 06:00 UTC on October 5, at which time it reached peak winds of 45 mph (72 km/h).[7] A westward track brought the cyclone over cooler waters,[4] and the brief system dissipated over the open East Pacific after 18:00 UTC on October 6.[7]

Hurricane Ignacio

[edit]
Category 4 hurricane (SSHWS)
 
DurationOctober 23 – October 30
Peak intensity145 mph (230 km/h) (1-min);
938 mbar (hPa)

Over two weeks after the dissipation of Hilda, a new tropical disturbance formed southwest of Guatemala on October 22. It tracked steadily westward, becoming a tropical depression around 18:00 UTC on October 23 and Tropical Storm Ignacio at 12:00 UTC the next day. A curve toward the northwest brought the cyclone over progressively warmer waters,[4] and it reached hurricane intensity around 18:00 UTC on October 26. Ignacio soon thereafter began a period of rapid intensification, vaulting from Category 2 to Category 4 intensity within six hours.[7] A United States Air Force reconnaissance plane investigated the powerful storm at 18:00 UTC on October 27, finding peak winds of 145 mph (233 km/h) – tied with Enrique as the strongest of the season – as well as a 25-mile (35-km) diameter eye covered only by broken low-level clouds.

Ignacio turned north and then veered sharply east, entering colder waters. Subsequent reconnaissance of the storm found various changes to its internal structure, including a pinhole eye down to 6 miles (9.7 km) in diameter before it ultimately became ill-defined. Ignacio accelerated toward the Mexico coastline, and around 12:00 UTC on October 30 struck about 160 miles (260 km) east-southeast of Manzanillo, Colima, with much-weakened winds of 35 mph (56 km/h).[4] It transitioned into an extratropical cyclone six hours later, then dissipated over the Yucatán Peninsula the next day.[7][4]

Tropical Storm Jimena

[edit]
Tropical storm (SSHWS)
 
DurationNovember 15 – November 18
Peak intensity65 mph (100 km/h) (1-min);

The final storm of the 1979 season began as a tropical disturbance south of Panama on November 13.[4] The system moved generally westward and organized into a tropical depression around 06:00 UTC on November 15.[7] Warm waters aided in the depression's development,[4] and it became Tropical Storm Jimena by 00:00 UTC on November 16. The cyclone's winds peaked at 65 mph (105 km/h) around 18:00 UTC that day.[7] Afterwards, cold and dry northerly winds flowing across the Gulf of Tehuantepec began to affect Jimena, causing it to weaken.[4] The system's center dissipated after 06:00 UTC on November 18,[7] though its remnants were evident on satellite imagery for another three days.[4]

Other systems

[edit]

Several unofficial tropical depressions accompanied the documented cyclones in 1979. Shortly before the formation of Andres, a tropical depression developed south of Manzanillo on May 31. It curved northwest into cooler waters and dissipated on June 1. Another tropical depression was identified north of Carlos on July 16. It weakened over cold waters almost immediately, however, dissipating around 12:00 UTC that day just offshore Baja California Sur. The last documented tropical depression formed on September 4 south of the Gulf of the Tehuantepec. The system moved onshore about 165 miles (266 km) east-southeast of Acapulco at 18:00 UTC that day. It dissipated rapidly once inland.[4]

Storm names

[edit]

The following list of names was used for named storms that formed in the North Pacific Ocean east of 140°W in 1979.[8] Most of these names were used for the first time, except for Blanca and Dolores, which were previously used in the old four-year lists.[9] No names were retired from the list following the season, and it was used again for the 1985 season.[10]

  • Andres
  • Blanca
  • Carlos
  • Dolores
  • Enrique
  • Fefa
  • Guillermo
  • Hilda
  • Ignacio
  • Jimena
  • Kevin (unused)
  • Linda (unused)
  • Marty (unused)
  • Nora (unused)
  • Olaf (unused)
  • Pauline (unused)
  • Rick (unused)
  • Sandra (unused)
  • Terry (unused)
  • Vivian (unused)
  • Waldo (unused)

Had a named storm formed in the North Pacific between 140°W and the International Date Line in 1979 it would have been assigned a name from the west Pacific's typhoon name list by the Joint Typhoon Warning Center on Guam.[8][9]

Season effects

[edit]

This is a table of all of the storms that formed in the 1979 Pacific hurricane season. It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 1979 USD.

Saffir–Simpson scale
TD TS C1 C2 C3 C4 C5
1979 Pacific hurricane season statistics
Storm
name
Dates active Storm category
at peak intensity
Max 1-min
wind
mph (km/h)
Min.
press.
(mbar)
Areas affected Damage
(USD)
Deaths Ref(s)
Andres May 31–June 4 Category 2 hurricane 100 (155) ≤992 Mexico None 2 [4][6]
Blanca June 21–25 Tropical storm 50 (85) Unknown None None None [4]
Carlos July 14–16 Tropical storm 50 (85) Unknown None None None [4]
Dolores July 17–23 Category 3 hurricane 120 (195) Unknown None None None [4]
Enrique August 17–24 Category 4 hurricane 145 (230) Unknown None None None [4]
Fefa August 21–25 Category 3 hurricane 115 (185) Unknown None None None [4]
Guillermo September 8–13 Category 1 hurricane 75 (120) ≤994 None None None [4]
Hilda October 4–6 Tropical storm 45 (75) ≤994 None None None [4]
Ignacio October 23–30 Category 4 hurricane 145 (230) 938 Mexico None None [4]
Jimena November 15–18 Tropical storm 65 (100) Unknown None None None [4]
Season aggregates
10 systems May 31–November 18   145 (230) 938 None 2  

See also

[edit]

Notes

[edit]
  1. ^ A "major" hurricane is one that reaches Category 3 or higher on the Saffir–Simpson scale; this corresponds to having winds of at least 110 mph (178 km/h).[1]

References

[edit]
  1. ^ "The Saffir-Simpson Hurricane Wind Scale" (PDF). Miami Florida: National Hurricane Center. Retrieved February 28, 2024.
  2. ^ Tropical Cyclone Report: Tropical Cyclones 1979 (PDF) (Report). Honolulu Hawaii: Central Pacific Hurricane Center. 1981. Retrieved February 28, 2024.
  3. ^ "Hurricanes: Frequently Asked Questions". Atlantic Oceanographic and Meteorological Laboratory. National Oceanic and Atmospheric Administration. Retrieved January 5, 2022.
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak Emil B. Gunther (1980). "Eastern North Pacific Tropical Cyclones of 1979". Monthly Weather Review. 108 (5). Eastern Pacific Hurricane Center: 631–641. Bibcode:1980MWRv..108..631G. doi:10.1175/1520-0493(1980)108<0631:ENPTCO>2.0.CO;2.
  5. ^ "Basin Archives: Northeast Pacific Ocean Historical Tropical Cyclone Statistics". Fort Collins, Colorado: Colorado State University. Retrieved July 8, 2022.
  6. ^ a b "Hurricane Andrew". Tampa Times. Tampa, Florida. June 5, 1979. p. 8. Retrieved January 5, 2022 – via Newspapers.com.
  7. ^ a b c d e f g h i j k l m n o p q r National Hurricane Center; Hurricane Research Division; Central Pacific Hurricane Center (April 26, 2024). "The Northeast and North Central Pacific hurricane database 1949–2023". United States National Oceanic and Atmospheric Administration's National Weather Service. Archived from the original on May 29, 2024. A guide on how to read the database is available here. Public Domain This article incorporates text from this source, which is in the public domain.
  8. ^ a b National Hurricane Operations Plan (PDF) (Report). Washington, D.C.: NOAA Office of the Federal Coordinator for Meteorological Services and Supporting Research. May 1979. pp. 7, 10. Retrieved January 14, 2024.
  9. ^ a b "Eastern North Pacific Tropical Cyclone Name History". Atlantic Tropical Weather Center. Archived from the original on September 29, 2007. Retrieved February 27, 2024.
  10. ^ National Hurricane Operations Plan (PDF) (Report). Washington, D.C.: NOAA Office of the Federal Coordinator for Meteorological Services and Supporting Research. May 1985. p. 3-8. Retrieved February 28, 2024.