Hurricane Genevieve (2020): Difference between revisions
m Disambiguating links to Interstate 580 (link changed to Interstate 580 (California)) using DisamAssist. |
No edit summary |
||
(34 intermediate revisions by 18 users not shown) | |||
Line 2: | Line 2: | ||
{{Use American English|date=August 2020}} |
{{Use American English|date=August 2020}} |
||
{{Use mdy dates|date=August 2020}} |
{{Use mdy dates|date=August 2020}} |
||
{{Infobox |
{{Infobox weather event |
||
| |
| name = Hurricane Genevieve |
||
⚫ | |||
| Type = hurricane |
|||
⚫ | |||
| Year = 2020 |
|||
⚫ | |||
| Basin = EPAC |
|||
⚫ | |||
⚫ | |||
| dissipated = August 24, 2020 |
|||
⚫ | |||
}}{{Infobox weather event/NWS |
|||
⚫ | |||
⚫ | |||
⚫ | |||
| pressure = 950 |
|||
| Remnant low = August 21 |
|||
}}{{Infobox weather event/Effects |
|||
⚫ | |||
| |
| fatalities = 6 |
||
| |
| damage = 50000000 |
||
⚫ | |||
| Fatalities = 6 total |
|||
| ibtracs = 2020230N11264 |
|||
⚫ | |||
| refs = <ref name="TCR"/> |
|||
⚫ | |||
}}{{Infobox weather event/Footer |
|||
⚫ | |||
}} |
}} |
||
'''Hurricane Genevieve''' was a strong tropical cyclone that almost made landfall on the [[Baja California Peninsula]] in August 2020. |
'''Hurricane Genevieve''' was a strong [[tropical cyclone]] that almost made [[landfall]] on the [[Baja California Peninsula]] in August 2020. Genevieve was the twelfth [[tropical cyclone]], seventh named storm,{{efn|This excludes an [[2020 Pacific hurricane season#Unnamed Tropical Storm (Seven-E)|unnamed tropical storm]] in July 2020.}} third hurricane, and second major hurricane of the [[2020 Pacific hurricane season]]. The cyclone formed from a [[tropical wave]] that the [[National Hurricane Center]] (NHC) first started monitoring on August 10. The wave merged with a trough of low pressure on August 13, and favorable conditions allowed the wave to intensify into Tropical Depression Twelve-E at 15:00 UTC. Just six hours later, the depression became a tropical storm and was given the name Genevieve. Genevieve quickly became a hurricane by August 17, and Genevieve began [[explosive intensification]] the next day. By 12:00 UTC on August 18, Genevieve reached its peak intensity as a Category 4 hurricane, with maximum 1-minute sustained winds of 130 mph and a minimum [[atmospheric pressure|central pressure]] of {{convert|950|mbar|inHg}}. Genevieve began to weaken on the next day, possibly due to cooler waters caused by Hurricane Elida earlier that month. Genevieve weakened below tropical storm status around 18:00 UTC on August 20, as it passed close to [[Baja California Sur]]. Soon afterward, Genevieve began to lose its deep convection and became a post-tropical cyclone by 21:00 UTC on August 21, eventually dissipating off the coast of [[Southern California]] late on August 24. |
||
Hurricane-force gusts affected parts of Baja California as Genevieve passed close by. Several inches of rain caused flooding near [[Cabo San Lucas]] on August 20. A total of six deaths were attributed to Genevieve across Mexico. Total economic losses associated with Genevieve reached US$50 million.<ref>{{Cite web|url=http://thoughtleadership.aon.com/documents/20201111_analytics-if-october-global-recap.pdf|title=Global Catastrophe Recap October 2020|publisher=AON|access-date=November 12, 2020}}</ref> |
Hurricane-force gusts affected parts of Baja California as Genevieve passed close by. Several inches of rain caused flooding near [[Cabo San Lucas]] on August 20. A total of six deaths were attributed to Genevieve across Mexico. Total economic losses associated with Genevieve reached US$50 million in Mexico.<ref name="AON Benfield October 2020">{{Cite web|url=http://thoughtleadership.aon.com/documents/20201111_analytics-if-october-global-recap.pdf|title=Global Catastrophe Recap October 2020|publisher=AON Benfield|pages=12|date=November 11, 2020|access-date=November 12, 2020}}</ref> |
||
==Meteorological history== |
==Meteorological history== |
||
{{storm path|Genevieve 2020 track.png}} |
{{storm path|Genevieve 2020 track.png}} |
||
On August 10, the [[National Hurricane Center|NHC]] noted the possibility of an area of low pressure |
On August 10, the [[National Hurricane Center|NHC]] noted the possibility of an [[low-pressure area|area of low pressure]] forming near [[Central America]] within the next few days.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=202008102033&basin=epac&fdays=5|title=Five-Day Graphical Tropical Weather Outlook|website=www.nhc.noaa.gov|author=John Cangialosi|publisher=National Hurricane Center|location=Miami, Florida|date=August 10, 2020|access-date=August 16, 2020}}</ref> On August 13, a [[tropical wave]] entered the Eastern Pacific basin from Central America.<ref name="TCR">{{cite report |author1=Richard J. Pasch|author2=David P. Roberts |title=Tropical Cyclone Report: Hurricane Genevieve |url={{NHC TCR url|id=EP122020_Genevieve}} |publisher=National Hurricane Center |location=Miami, Florida|date=September 10, 2020|access-date=December 27, 2020}}</ref> Later that day, the NHC's forecast was realized, as a trough of low pressure developed just offshore Central America, in association with the tropical wave.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=202008131452&basin=epac&fdays=5|title=Five-Day Graphical Tropical Weather Outlook|website=www.nhc.noaa.gov|author=Robbie Berg|publisher=National Hurricane Center|location=Miami, Florida|date=August 13, 2020|access-date=August 16, 2020}}</ref> The disturbance gradually organized, and on August 16, the system became a tropical depression, receiving the designation ''Twelve-E'' at 15:00 [[UTC]].<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public.001.shtml?|title=Tropical Depression Twelve-E Public Advisory Number 1|website=www.nhc.noaa.gov|author=Dan Brown|publisher=National Hurricane Center|location=Miami, Florida|date=April 13, 2021|access-date=May 13, 2021}}</ref> The depression rapidly strengthened and became a tropical storm 6 hours later at 21:00 UTC, receiving the name ''Genevieve''.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public.002.shtml?|title=Tropical Storm Genevieve Public Advisory Number 2|website=www.nhc.noaa.gov|author=Dan Brown|publisher=National Hurricane Center|location=Miami, Florida|date=August 16, 2020|access-date=August 16, 2020}}</ref> Genevieve continued to strengthen rapidly overnight as it developed an inner core, and the storm became a Category 1 hurricane on August 17, reaching 1-minute sustained winds of {{convert|75|mph|km/h|abbr=on}}.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.005.shtml?|title=Tropical Storm Genevieve Discussion Number 5|website=www.nhc.noaa.gov|author=Andrew Latto|publisher=National Hurricane Center|location=Miami, Florida|date=August 17, 2020|access-date=August 17, 2020}}</ref><ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.003.shtml?|title=Tropical Storm Genevieve Discussion Number 3|author=Stacy R. Stewart|publisher=National Hurricane Center|website=nhc.noaa.gov|date=August 17, 2020|access-date=December 23, 2020}}</ref> Genevieve continued to rapidly intensify as it began to grow an eye along with well-defined banding features, later that day.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.006.shtml?|title=Hurricane Genevieve Discussion Number 6|author=Daniel Brown|publisher=National Hurricane Center|website=nhc.noaa.gov|location=Miami, Florida|date=August 17, 2020|access-date=December 23, 2020}}</ref> By 03:00 UTC the next day, Genevieve had intensified into a Category 2 hurricane, as strong outflow became evident and the eye began to grow, though it remained clouded.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.007.shtml?|title=Hurricane Genevieve Discussion Number 7|author=Stacy R. Stewart|publisher=National Hurricane Center|website=nhc.noaa.gov|location=Miami, Florida|date=August 18, 2020|access-date=December 23, 2020}}</ref> Just 6 hours later, Genevieve became a Category 3 hurricane, as an eyewall and a well-defined [[eye]] became visible.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.008.shtml?|title=Hurricane Genevieve Discussion Number 8|author=Jack Beven|publisher=National Hurricane Center|website=nhc.noaa.gov|date=August 18, 2020|access-date=December 23, 2020}}</ref> |
||
Three hours later, Genevieve intensified further into a [[Category 4 hurricane]].<ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.008.shtml|title=Hurricane Genevieve Intermediate Advisory Number 8A|website=www.nhc.noaa.gov|author=David Zelinsky|publisher=National Hurricane Center|location=Miami, Florida|date=August 18, 2020| |
Three hours later, at 12:00 UTC on August 18, Genevieve intensified further into a [[Saffir–Simpson scale#Category 4|Category 4 hurricane]], and the storm reached its peak intensity, with maximum 1-minute sustained winds of {{convert|130|mph|km/h|abbr=on}} and a minimum central pressure of {{convert|950|mbar|inHg}}.<ref name="TCR" /><ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.008.shtml|title=Hurricane Genevieve Intermediate Advisory Number 8A|website=www.nhc.noaa.gov|author=David Zelinsky|publisher=National Hurricane Center|location=Miami, Florida|date=August 18, 2020|access-date=August 18, 2020}}</ref> Later that day, as Genevieve maintained its intensity, imagery showed an almost-circular eye, along with a well-defined inner core.<ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.010.shtml?|title=Hurricane Genevieve Discussion Number 10|author=John Cangialosi|publisher=National Hurricane Center|website=nhc.noaa.gov|location=Miami, Florida|date=August 18, 2020|access-date=December 23, 2020}}</ref><ref>{{Cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public.010.shtml?|title=Hurricane Genevieve Advisory Number 10|author=John Cangialosi|publisher=National Hurricane Center|website=nhc.noaa.gov|location=Miami, Florida|date=August 18, 2020|access-date=December 23, 2020}}</ref> On the next day, Genevieve began to weaken, with no signs of an eyewall replacement cycle, hinting at weakening possibly due to a [[cold wake]] left behind by [[2020 Pacific hurricane season#Hurricane Elida|Hurricane Elida]], earlier that month. Genevieve continued a gradual weakening trend for the next several hours,<ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.013.shtml|title=Hurricane Genevieve Duscussion Number 13|website=www.nhc.noaa.gov|author=Daniel Brown|publisher=National Hurricane Center|location=Miami, Florida|date=August 19, 2020|access-date=August 20, 2020}}</ref> but later that day, data from an NHC [[Hurricane Hunters|Reconnaissance Flight]] indicated that Genevieve was rapidly weakening, with the storm dropping to Category 1 status by 21:00 UTC that day.<ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.014.shtml|title=Hurricane Genevieve Discussion Number 14|website=www.nhc.noaa.gov|author=Daniel Brown|publisher=National Hurricane Center|location=Miami, Florida|date=August 19, 2020|access-date=August 20, 2020}}</ref> On August 20, Genevieve turned northwestward and passed very close to [[Cabo San Lucas]], at the southern tip of the [[Baja California Peninsula]], and the system weakened further into a tropical storm at 18:00 UTC.<ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.017.shtml|title=Tropical Storm Genevieve Intermediate Advisory Number 17A|website=www.nhc.noaa.gov|author=Andrew Latto|publisher=National Hurricane Center|location=Miami, Florida|date=August 20, 2020|access-date=August 20, 2020}}</ref> By 21:00 UTC on August 21, Genevieve had degenerated into a [[post-tropical cyclone]], after having no deep convection near its center for 12 hours.<ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.discus.022.shtml|title=Post-Tropical Cyclone Genevieve Discussion Number 22|website=www.nhc.noaa.gov|author=Daniel Brown|publisher=National Hurricane Center|location=Miami, Florida|date=August 21, 2020|access-date=August 22, 2020}}</ref> At 12:00 UTC on August 22, Genevieve's remnant low dissipated.<ref name="TCR" /> However, Genevieve's remnant circulation continued to persist for another couple of days, stalling off the coast of Southern California on August 23.<ref>{{cite web|url=https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=08/23/2020&selmap=2020082321&maptype=satsfcnps|title=WPC Surface Analysis valid for 08/23/2020 at 21 UTC|website=wpc.ncep.noaa.gov|publisher=Weather Prediction Center|date=August 23, 2020|access-date=August 25, 2020}}</ref> Genevieve's remnants dissipated by 00:00 UTC on August 25.<ref>{{cite web|url=https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=08/25/2020&selmap=2020082500&maptype=satsfcnps|title=WPC Surface Analysis valid for 08/25/2020 at 00 UTC|website=wpc.ncep.noaa.gov|publisher=Weather Prediction Center|date=August 25, 2020|access-date=August 25, 2020}}</ref> |
||
==Preparations and impact== |
==Preparations and impact== |
||
===Mexico=== |
===Mexico=== |
||
[[File:Genevieve 2020-08-17 1730Z.jpg|thumb|right|Hurricane Genevieve strengthening while dropping heavy rainfall over southwestern Mexico on August 17]] |
[[File:Genevieve 2020-08-17 1730Z.jpg|thumb|right|Hurricane Genevieve strengthening while dropping heavy rainfall over southwestern Mexico, on August 17]] |
||
As Hurricane Genevieve rapidly intensified on August 17, the Government of Mexico issued a [[tropical storm watch]] for southern areas of [[Baja California Sur]].<ref>{{cite report|author=Daniel Brown|publisher=National Hurricane Center|date=August 17, 2020| |
As Hurricane Genevieve [[rapidly intensified]] on August 17, the Government of Mexico issued a [[tropical storm watch]] for southern areas of [[Baja California Sur]].<ref>{{cite report|author=Daniel Brown|publisher=National Hurricane Center|date=August 17, 2020|access-date=October 19, 2020|title=Hurricane Genevieve Advisory Number 6|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public.006.shtml}}</ref> This was later raised to a [[tropical storm warning]] the next day,<ref>{{cite report|author=David Zelinsky|publisher=National Hurricane Center|date=August 18, 2020|access-date=October 19, 2020|title=Hurricane Genevieve Intermediate Advisory Number 8A|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.008.shtml}}</ref> and a hurricane warning on August 19.<ref>{{cite report|author=Daniel Brown|publisher=National Hurricane Center|date=August 19, 2020|access-date=October 19, 2020|title=Hurricane Genevieve Advisory Number 13|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public.013.shtml}}</ref> These advisories were subsequently discontinued as the storm weakened and moved away from the Baja California Peninsula on August 21.<ref>{{cite report|author=Daniel Brown|publisher=National Hurricane Center|date=August 21, 2020|access-date=October 19, 2020|title=Tropical Storm Genevieve Intermediate Advisory Number 20A |
||
|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.020.shtml}}</ref> An estimated 8 million people were threatened by the hurricane across the west coast of Mexico. Accordingly, approximately 1,600 shelters were opened nationwide: 571 in Jalisco, 434 in Nayarit, 237 in Colima, 179 in Michoacán, and 175 in Baja California Sur.<ref>{{cite news|language= |
|url=https://www.nhc.noaa.gov/archive/2020/ep12/ep122020.public_a.020.shtml}}</ref> An estimated 8 million people were threatened by the hurricane across the west coast of Mexico. Accordingly, approximately 1,600 shelters were opened nationwide: 571 in Jalisco, 434 in Nayarit, 237 in Colima, 179 in Michoacán, and 175 in Baja California Sur.<ref>{{cite news|language=es|agency=EFE|newspaper=El Informador|date=August 18, 2020|access-date=October 19, 2020|title=Más de ocho millones de mexicanos, en riesgo por huracán ''Genevieve''|url=https://www.informador.mx/mexico/Mas-de-ocho-millones-de-mexicanos-en-riesgo-por-huracan-Genevieve-20200818-0081.html}}</ref> Even without officials asking residents to do so, residents of Baja California prepared for damaging winds.<ref>{{Cite web|url=https://www.foxnews.com/world/hurricane-warning-genevieve-mexico-baja-california-tropical-storm-warning-weather-forecast|title=Hurricane warning in Mexico's Baja California as Genevieve to give close pass|website=Fox News|date=August 19, 2020 }}</ref> |
||
[[Thunderstorm]]s associated with the outer bands of Genevieve produced gusty winds and heavy rain in Oaxaca, with accumulations averaging {{convert|75|to|150|mm|in|abbr=on|order=flip}} and gusts reaching {{convert|70|to|80|km/h|mph|abbr=on|order=flip}}.<ref name="Oaxaca1"/> Four people were killed in the state:<ref name="TelU_0819">{{cite news|language=es|publisher=Telemundo Utah|date=August 19, 2020|access-date=October 19, 2020|title=Genevieve deja seis muertos y daños en plena recuperación turística en México|url=https://www.telemundoutah.com/noticias/mexico/genevieve-deja-seis-muertos-y-danos-en-plena-recuperacion-turistica-en-mexico/2018757/}}</ref> two from landslides in [[Huautla de Jiménez]] and two from swollen rivers.<ref name="Oaxaca2">{{cite news|language=es|publisher=MSN News|agency=Tele Diario|date=August 19, 2020|access-date=October 19, 2020|title=En Oaxaca, lluvias provocadas por 'Genevieve' dejan cuatro muertos|url=https://www.msn.com/es-mx/noticias/mexico/en-oaxaca-lluvias-provocadas-por-genevieve-dejan-cuatro-muertos/ar-BB189SQu}}</ref> Water reached a depth of {{convert|0.5|m|ft|abbr=on|order=flip}} in [[Puerto Ángel]].<ref>{{cite news|language=es|publisher=24 Horas|date=August 16, 2020|access-date=October 19, 2020|title=Lluvias Provacan Inundaciones el La Costa de Oaxaca|url=https://www.24-horas.mx/2020/08/16/lluvias-provocan-inundaciones-en-la-costa-de-oaxaca-fotos/}}</ref> The Caminos y Aeropistas de Oaxaca deployed 32 personnel to repair damage to roads.<ref name="Oaxaca1">{{cite news|language=es|author=Ángel Camarena|publisher=TVBUS Noticias|date=August 17, 2020|access-date=October 19, 2020|title=Deja daños leves Huracán Genevieve en Oaxaca|url=http://www.tvbus.tv/web/2020/08/17/deja-danos-leves-huracan-genevieve-en-oaxaca/}}</ref> Emergency declarations were issued for 13 municipalities.<ref name="Oaxaca2"/> Localized flash flooding impacted parts of [[Acapulco]], with cars washed away and some homes inundated.<ref>{{cite news|language=es|newspaper=El Sud Californiano|date=August 20, 2020|access-date=October 19, 2020|title=Intensas lluvias en Acapulco dejan inundaciones, autos arrastrados y deslaves|url=https://www.elsudcaliforniano.com.mx/republica/sociedad/inundaciones-arrastre-de-vehiculos-y-deslaves-provocan-lluvias-en-acapulco-proteccion-civil-deslaves-arraste-de-autos-5650188.html}}</ref> Large swells impacted the coast of [[Jalisco]].<ref name="TWC_recap"/> Fourteen families were relocated in [[Cihuatlán]].<ref name="TelU_0819"/> |
|||
Heavy rainfall impacted much of Baja California Sur as Genevieve brushed the state; accumulations peaked at {{convert|280|mm|in|abbr=on| |
Heavy rainfall impacted much of Baja California Sur as Genevieve brushed the state; accumulations peaked at {{convert|280|mm|in|abbr=on|order=flip}} in [[Cabo San Lucas]].<ref name="debate">{{cite news|language=es|author=Laura Gerardo|publisher=El Debate|date=August 23, 2020|access-date=October 19, 2020|title=Emiten declaratoria de emergencia para La Paz y Los Cabos, BCS por 'Genevieve'|url=https://www.debate.com.mx/estados/Emiten-declaratoria-de-emergencia-para-La-Paz-y-Los-Cabos-BCS-por-Genevieve-20200823-0105.html}}</ref> In the mountainous terrain south of Cabo San Lucas, wind gusts reached {{convert|90|mph|km/h|abbr=on}}.<ref name="TWC_recap">{{cite web|publisher=The Weather Channel|date=August 20, 2020|access-date=October 19, 2020|title=Hurricane Genevieve Grazed Mexico's Southern Baja Peninsula With Flooding Rain, High Winds (RECAP)|url=https://weather.com/storms/hurricane/news/2020-08-18-hurricane-genevieve-forecast-mexico-cabo-san-lucas}}</ref> Electrical and road infrastructure was damaged statewide,<ref name="debate"/> and some areas were without power for more than 24 hours.<ref>{{cite news|newspaper=El Sud Californiano|date=August 20, 2020|access-date=October 19, 2020|title=[Galería] Lluvias por Genevieve inundan centro de Cabo San Lucas|url=https://www.elsudcaliforniano.com.mx/local/municipios/galeria-lluvias-por-genevieve-inundan-centro-de-cabo-san-lucas-5651132.html}}</ref> A lifeguard drowned while attempting to save a teen who also died after ignoring warning flags prompted by rough surf produced by Genevieve, at a resort in Cabo San Lucas.<ref>{{Cite web|url=https://www.aljazeera.com/news/2020/08/tropical-storm-genevieve-kills-people-western-mexico-200821091303998.html|title=Tropical Storm Genevieve kills two people in western Mexico|website=Al Jazeera English}}</ref> On August 23, the Coordinación Nacional de Protección Civil declared a [[state of emergency]] for the municipalities of La Paz and Los Cabos. This allowed the distribution of government aid and supplies to affected residents.<ref name="debate"/> Heavy machinery was used to clear roads of debris and mud left behind by floods.<ref>{{cite news|language=es|publisher=El Informante|date=August 23, 2020|access-date=October 19, 2020|title=Rehabilita Servicios Públicos Calles Afectadas por Lluvias en Los Cabos|url=https://elinformantebcs.mx/rehabilita-servicios-publicos-calles-afectadas-por-lluvias-en-los-cabos/}}</ref> Economic losses in Mexico reached $50 million (2020 [[United States dollar|USD]]), due to Genevieve.<ref name="AON Benfield October 2020" /> |
||
===United States=== |
===United States=== |
||
{{See also|2020 California wildfires}} |
{{See also|2020 California wildfires}} |
||
On August 22, moisture from Hurricane Genevieve's remnants brought heavy rainfall to parts of [[Southern California]] |
On August 22, moisture from Hurricane Genevieve's remnants brought heavy [[rainfall]] to parts of [[Southern California]], which continued until August 24.<ref>{{cite web|url=https://weather.com/forecast/regional/news/2020-08-21-hurricane-genevieve-remnant-california-desert-southwest|title=Hurricane Genevieve May Be Gone, But Its 'Ghost' May Bring More Thunderstorms to Fire-Ravaged California|website=weather.com|author=Jonathan Erdman|publisher=[[The Weather Company]]|date=August 22, 2020|access-date=August 22, 2020}}</ref><ref name="red flag warning" /> This brought fears of wildfires in the region, due to the potential for lightning storms; the region was already being impacted by [[August 2020 California lightning wildfires|fires]] produced by [[2020 Pacific hurricane season#Tropical Storm Fausto|Tropical Storm Fausto]]'s thunderstorms just days earlier.<ref>{{Cite web|url=https://www.sandiegouniontribune.com/weather/story/2020-08-22/thunderstorms-could-spark-wildfires-in-southern-california-on-sunday|title=Thunderstorms could spark wildfires in Southern California on Sunday|author=Gary Robbins|website=[[The San Diego Union-Tribune]]|date=August 22, 2020|access-date=December 23, 2020}}</ref><ref>{{Cite web|title=Cal Fire 72 hour activity|url=https://twitter.com/CAL_FIRE/status/1296209793414135809|access-date=2020-08-20|website=twitter.com}}</ref><ref>{{Cite web|date=2020-08-16|title=Moisture from Tropical Storm Fausto fuels NorCal thunderstorms|url=https://ktla.com/news/california/moisture-from-tropical-storm-fausto-fuels-norcal-thunderstorms/|access-date=2020-08-16|website=KTLA|language=en-US|archive-date=September 14, 2020|archive-url=https://web.archive.org/web/20200914114433/https://ktla.com/news/california/moisture-from-tropical-storm-fausto-fuels-norcal-thunderstorms/|url-status=dead}}</ref> On August 22, a red flag warning was put in effect for most of coastal California.<ref>{{Cite web|url=https://sanfrancisco.cbslocal.com/2020/08/22/plume-of-topical-weather-triggers-red-flag-warning-for-fire-ravaged-northern-california/|title=Plume Of Topical Weather Triggers Red Flag Warning For Fire-Ravaged Northern California|publisher=KPIX 5|website=sanfransisco.cbslocal.com|date=August 22, 2020|access-date=December 23, 2020}}</ref> Fortunately, lightning strikes ignited only three small fires, which were able to be brought under control, near the larger [[SCU Lightning Complex fires]].<ref>{{Cite web|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=912928|title=Storm Events Database|website=National Centers for Environmental Information|date=August 23, 2021|access-date=January 27, 2021}}</ref> However, thunderstorms produced by Genevieve worsened conditions for firefighters battling three other wildfires in the [[San Francisco Bay Area]].<ref name="red flag warning">{{Cite web|url=https://www.timesheraldonline.com/2020/08/24/bay-area-weather-red-flag-warning-as-forecasters-fear-new-lightning-winds-sunday/|title=Bay Area weather: Red flag warning and unhealthy air as forecasters warn of lightning, winds|author=Harriet Rowan|publisher=Times Herald|website=timesheraldonline.com|date=August 24, 2020|access-date=December 23, 2020}}</ref> A peak wind gust of around {{convert|35|mph|km/h|abbr=on}} was reported along [[Interstate 580 (California)|Interstate 580]] on August 22.<ref>{{Cite web|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=912929|title=Storm Events Database|publisher=National Centers for Environmental Information|date=August 22, 2020|access-date=January 27, 2021}}</ref> Despite this, no monetary damages were reported in association with Genevieve in the United States.<ref>{{Cite web|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=912930|title=Storm Events Database|publisher=National Centers for Environmental Information|date=August 23, 2020|access-date=January 27, 2021}}</ref> |
||
==See also== |
==See also== |
||
{{portal|Tropical cyclones}} |
{{portal|Tropical cyclones|Mexico|California}} |
||
* [[Weather of 2020]] |
|||
* [[Tropical cyclones in 2020]] |
* [[Tropical cyclones in 2020]] |
||
⚫ | |||
* [[List of Category 4 Pacific hurricanes]] |
* [[List of Category 4 Pacific hurricanes]] |
||
⚫ | |||
* [[List of Baja California Peninsula hurricanes]] |
* [[List of Baja California Peninsula hurricanes]] |
||
* [[List of California hurricanes]] |
* [[List of California hurricanes]] |
||
* [[Hurricane Jimena (2009)]] |
* [[Hurricane Jimena (2009)]] |
||
* [[Hurricane Odile |
* [[Hurricane Odile]] (2014) |
||
* [[Hurricane Blanca (2015)]] |
* [[Hurricane Blanca (2015)]] |
||
* [[Hurricane Dolores (2015)]] |
* [[Hurricane Dolores (2015)]] |
||
==Notes== |
|||
{{notelist}} |
|||
==References== |
==References== |
Latest revision as of 01:51, 2 November 2024
Meteorological history | |
---|---|
Formed | August 16, 2020 |
Remnant low | August 21, 2020 |
Dissipated | August 24, 2020 |
Category 4 major hurricane | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 130 mph (215 km/h) |
Lowest pressure | 950 mbar (hPa); 28.05 inHg |
Overall effects | |
Fatalities | 6 |
Damage | $50 million |
Areas affected | Southwestern Mexico, Socorro Island, Baja California Peninsula, Southern California |
IBTrACS / [1] | |
Part of the 2020 Pacific hurricane season |
Hurricane Genevieve was a strong tropical cyclone that almost made landfall on the Baja California Peninsula in August 2020. Genevieve was the twelfth tropical cyclone, seventh named storm,[a] third hurricane, and second major hurricane of the 2020 Pacific hurricane season. The cyclone formed from a tropical wave that the National Hurricane Center (NHC) first started monitoring on August 10. The wave merged with a trough of low pressure on August 13, and favorable conditions allowed the wave to intensify into Tropical Depression Twelve-E at 15:00 UTC. Just six hours later, the depression became a tropical storm and was given the name Genevieve. Genevieve quickly became a hurricane by August 17, and Genevieve began explosive intensification the next day. By 12:00 UTC on August 18, Genevieve reached its peak intensity as a Category 4 hurricane, with maximum 1-minute sustained winds of 130 mph and a minimum central pressure of 950 millibars (28 inHg). Genevieve began to weaken on the next day, possibly due to cooler waters caused by Hurricane Elida earlier that month. Genevieve weakened below tropical storm status around 18:00 UTC on August 20, as it passed close to Baja California Sur. Soon afterward, Genevieve began to lose its deep convection and became a post-tropical cyclone by 21:00 UTC on August 21, eventually dissipating off the coast of Southern California late on August 24.
Hurricane-force gusts affected parts of Baja California as Genevieve passed close by. Several inches of rain caused flooding near Cabo San Lucas on August 20. A total of six deaths were attributed to Genevieve across Mexico. Total economic losses associated with Genevieve reached US$50 million in Mexico.[2]
Meteorological history
[edit]On August 10, the NHC noted the possibility of an area of low pressure forming near Central America within the next few days.[3] On August 13, a tropical wave entered the Eastern Pacific basin from Central America.[1] Later that day, the NHC's forecast was realized, as a trough of low pressure developed just offshore Central America, in association with the tropical wave.[4] The disturbance gradually organized, and on August 16, the system became a tropical depression, receiving the designation Twelve-E at 15:00 UTC.[5] The depression rapidly strengthened and became a tropical storm 6 hours later at 21:00 UTC, receiving the name Genevieve.[6] Genevieve continued to strengthen rapidly overnight as it developed an inner core, and the storm became a Category 1 hurricane on August 17, reaching 1-minute sustained winds of 75 mph (121 km/h).[7][8] Genevieve continued to rapidly intensify as it began to grow an eye along with well-defined banding features, later that day.[9] By 03:00 UTC the next day, Genevieve had intensified into a Category 2 hurricane, as strong outflow became evident and the eye began to grow, though it remained clouded.[10] Just 6 hours later, Genevieve became a Category 3 hurricane, as an eyewall and a well-defined eye became visible.[11]
Three hours later, at 12:00 UTC on August 18, Genevieve intensified further into a Category 4 hurricane, and the storm reached its peak intensity, with maximum 1-minute sustained winds of 130 mph (210 km/h) and a minimum central pressure of 950 millibars (28 inHg).[1][12] Later that day, as Genevieve maintained its intensity, imagery showed an almost-circular eye, along with a well-defined inner core.[13][14] On the next day, Genevieve began to weaken, with no signs of an eyewall replacement cycle, hinting at weakening possibly due to a cold wake left behind by Hurricane Elida, earlier that month. Genevieve continued a gradual weakening trend for the next several hours,[15] but later that day, data from an NHC Reconnaissance Flight indicated that Genevieve was rapidly weakening, with the storm dropping to Category 1 status by 21:00 UTC that day.[16] On August 20, Genevieve turned northwestward and passed very close to Cabo San Lucas, at the southern tip of the Baja California Peninsula, and the system weakened further into a tropical storm at 18:00 UTC.[17] By 21:00 UTC on August 21, Genevieve had degenerated into a post-tropical cyclone, after having no deep convection near its center for 12 hours.[18] At 12:00 UTC on August 22, Genevieve's remnant low dissipated.[1] However, Genevieve's remnant circulation continued to persist for another couple of days, stalling off the coast of Southern California on August 23.[19] Genevieve's remnants dissipated by 00:00 UTC on August 25.[20]
Preparations and impact
[edit]Mexico
[edit]As Hurricane Genevieve rapidly intensified on August 17, the Government of Mexico issued a tropical storm watch for southern areas of Baja California Sur.[21] This was later raised to a tropical storm warning the next day,[22] and a hurricane warning on August 19.[23] These advisories were subsequently discontinued as the storm weakened and moved away from the Baja California Peninsula on August 21.[24] An estimated 8 million people were threatened by the hurricane across the west coast of Mexico. Accordingly, approximately 1,600 shelters were opened nationwide: 571 in Jalisco, 434 in Nayarit, 237 in Colima, 179 in Michoacán, and 175 in Baja California Sur.[25] Even without officials asking residents to do so, residents of Baja California prepared for damaging winds.[26]
Thunderstorms associated with the outer bands of Genevieve produced gusty winds and heavy rain in Oaxaca, with accumulations averaging 3.0 to 5.9 in (75 to 150 mm) and gusts reaching 43 to 50 mph (70 to 80 km/h).[27] Four people were killed in the state:[28] two from landslides in Huautla de Jiménez and two from swollen rivers.[29] Water reached a depth of 1.6 ft (0.5 m) in Puerto Ángel.[30] The Caminos y Aeropistas de Oaxaca deployed 32 personnel to repair damage to roads.[27] Emergency declarations were issued for 13 municipalities.[29] Localized flash flooding impacted parts of Acapulco, with cars washed away and some homes inundated.[31] Large swells impacted the coast of Jalisco.[32] Fourteen families were relocated in Cihuatlán.[28]
Heavy rainfall impacted much of Baja California Sur as Genevieve brushed the state; accumulations peaked at 11 in (280 mm) in Cabo San Lucas.[33] In the mountainous terrain south of Cabo San Lucas, wind gusts reached 90 mph (140 km/h).[32] Electrical and road infrastructure was damaged statewide,[33] and some areas were without power for more than 24 hours.[34] A lifeguard drowned while attempting to save a teen who also died after ignoring warning flags prompted by rough surf produced by Genevieve, at a resort in Cabo San Lucas.[35] On August 23, the Coordinación Nacional de Protección Civil declared a state of emergency for the municipalities of La Paz and Los Cabos. This allowed the distribution of government aid and supplies to affected residents.[33] Heavy machinery was used to clear roads of debris and mud left behind by floods.[36] Economic losses in Mexico reached $50 million (2020 USD), due to Genevieve.[2]
United States
[edit]On August 22, moisture from Hurricane Genevieve's remnants brought heavy rainfall to parts of Southern California, which continued until August 24.[37][38] This brought fears of wildfires in the region, due to the potential for lightning storms; the region was already being impacted by fires produced by Tropical Storm Fausto's thunderstorms just days earlier.[39][40][41] On August 22, a red flag warning was put in effect for most of coastal California.[42] Fortunately, lightning strikes ignited only three small fires, which were able to be brought under control, near the larger SCU Lightning Complex fires.[43] However, thunderstorms produced by Genevieve worsened conditions for firefighters battling three other wildfires in the San Francisco Bay Area.[38] A peak wind gust of around 35 mph (56 km/h) was reported along Interstate 580 on August 22.[44] Despite this, no monetary damages were reported in association with Genevieve in the United States.[45]
See also
[edit]- Weather of 2020
- Tropical cyclones in 2020
- List of Category 4 Pacific hurricanes
- Other tropical cyclones of the same name
- List of Baja California Peninsula hurricanes
- List of California hurricanes
- Hurricane Jimena (2009)
- Hurricane Odile (2014)
- Hurricane Blanca (2015)
- Hurricane Dolores (2015)
Notes
[edit]- ^ This excludes an unnamed tropical storm in July 2020.
References
[edit]- ^ a b c d Richard J. Pasch; David P. Roberts (September 10, 2020). Tropical Cyclone Report: Hurricane Genevieve (PDF) (Report). Miami, Florida: National Hurricane Center. Retrieved December 27, 2020.
- ^ a b "Global Catastrophe Recap October 2020" (PDF). AON Benfield. November 11, 2020. p. 12. Retrieved November 12, 2020.
- ^ John Cangialosi (August 10, 2020). "Five-Day Graphical Tropical Weather Outlook". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 16, 2020.
- ^ Robbie Berg (August 13, 2020). "Five-Day Graphical Tropical Weather Outlook". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 16, 2020.
- ^ Dan Brown (April 13, 2021). "Tropical Depression Twelve-E Public Advisory Number 1". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved May 13, 2021.
- ^ Dan Brown (August 16, 2020). "Tropical Storm Genevieve Public Advisory Number 2". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 16, 2020.
- ^ Andrew Latto (August 17, 2020). "Tropical Storm Genevieve Discussion Number 5". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 17, 2020.
- ^ Stacy R. Stewart (August 17, 2020). "Tropical Storm Genevieve Discussion Number 3". nhc.noaa.gov. National Hurricane Center. Retrieved December 23, 2020.
- ^ Daniel Brown (August 17, 2020). "Hurricane Genevieve Discussion Number 6". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved December 23, 2020.
- ^ Stacy R. Stewart (August 18, 2020). "Hurricane Genevieve Discussion Number 7". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved December 23, 2020.
- ^ Jack Beven (August 18, 2020). "Hurricane Genevieve Discussion Number 8". nhc.noaa.gov. National Hurricane Center. Retrieved December 23, 2020.
- ^ David Zelinsky (August 18, 2020). "Hurricane Genevieve Intermediate Advisory Number 8A". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 18, 2020.
- ^ John Cangialosi (August 18, 2020). "Hurricane Genevieve Discussion Number 10". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved December 23, 2020.
- ^ John Cangialosi (August 18, 2020). "Hurricane Genevieve Advisory Number 10". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved December 23, 2020.
- ^ Daniel Brown (August 19, 2020). "Hurricane Genevieve Duscussion Number 13". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 20, 2020.
- ^ Daniel Brown (August 19, 2020). "Hurricane Genevieve Discussion Number 14". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 20, 2020.
- ^ Andrew Latto (August 20, 2020). "Tropical Storm Genevieve Intermediate Advisory Number 17A". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 20, 2020.
- ^ Daniel Brown (August 21, 2020). "Post-Tropical Cyclone Genevieve Discussion Number 22". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 22, 2020.
- ^ "WPC Surface Analysis valid for 08/23/2020 at 21 UTC". wpc.ncep.noaa.gov. Weather Prediction Center. August 23, 2020. Retrieved August 25, 2020.
- ^ "WPC Surface Analysis valid for 08/25/2020 at 00 UTC". wpc.ncep.noaa.gov. Weather Prediction Center. August 25, 2020. Retrieved August 25, 2020.
- ^ Daniel Brown (August 17, 2020). Hurricane Genevieve Advisory Number 6 (Report). National Hurricane Center. Retrieved October 19, 2020.
- ^ David Zelinsky (August 18, 2020). Hurricane Genevieve Intermediate Advisory Number 8A (Report). National Hurricane Center. Retrieved October 19, 2020.
- ^ Daniel Brown (August 19, 2020). Hurricane Genevieve Advisory Number 13 (Report). National Hurricane Center. Retrieved October 19, 2020.
- ^ Daniel Brown (August 21, 2020). Tropical Storm Genevieve Intermediate Advisory Number 20A (Report). National Hurricane Center. Retrieved October 19, 2020.
- ^ "Más de ocho millones de mexicanos, en riesgo por huracán Genevieve". El Informador (in Spanish). EFE. August 18, 2020. Retrieved October 19, 2020.
- ^ "Hurricane warning in Mexico's Baja California as Genevieve to give close pass". Fox News. August 19, 2020.
- ^ a b Ángel Camarena (August 17, 2020). "Deja daños leves Huracán Genevieve en Oaxaca" (in Spanish). TVBUS Noticias. Retrieved October 19, 2020.
- ^ a b "Genevieve deja seis muertos y daños en plena recuperación turística en México" (in Spanish). Telemundo Utah. August 19, 2020. Retrieved October 19, 2020.
- ^ a b "En Oaxaca, lluvias provocadas por 'Genevieve' dejan cuatro muertos" (in Spanish). MSN News. Tele Diario. August 19, 2020. Retrieved October 19, 2020.
- ^ "Lluvias Provacan Inundaciones el La Costa de Oaxaca" (in Spanish). 24 Horas. August 16, 2020. Retrieved October 19, 2020.
- ^ "Intensas lluvias en Acapulco dejan inundaciones, autos arrastrados y deslaves". El Sud Californiano (in Spanish). August 20, 2020. Retrieved October 19, 2020.
- ^ a b "Hurricane Genevieve Grazed Mexico's Southern Baja Peninsula With Flooding Rain, High Winds (RECAP)". The Weather Channel. August 20, 2020. Retrieved October 19, 2020.
- ^ a b c Laura Gerardo (August 23, 2020). "Emiten declaratoria de emergencia para La Paz y Los Cabos, BCS por 'Genevieve'" (in Spanish). El Debate. Retrieved October 19, 2020.
- ^ "[Galería] Lluvias por Genevieve inundan centro de Cabo San Lucas". El Sud Californiano. August 20, 2020. Retrieved October 19, 2020.
- ^ "Tropical Storm Genevieve kills two people in western Mexico". Al Jazeera English.
- ^ "Rehabilita Servicios Públicos Calles Afectadas por Lluvias en Los Cabos" (in Spanish). El Informante. August 23, 2020. Retrieved October 19, 2020.
- ^ Jonathan Erdman (August 22, 2020). "Hurricane Genevieve May Be Gone, But Its 'Ghost' May Bring More Thunderstorms to Fire-Ravaged California". weather.com. The Weather Company. Retrieved August 22, 2020.
- ^ a b Harriet Rowan (August 24, 2020). "Bay Area weather: Red flag warning and unhealthy air as forecasters warn of lightning, winds". timesheraldonline.com. Times Herald. Retrieved December 23, 2020.
- ^ Gary Robbins (August 22, 2020). "Thunderstorms could spark wildfires in Southern California on Sunday". The San Diego Union-Tribune. Retrieved December 23, 2020.
- ^ "Cal Fire 72 hour activity". twitter.com. Retrieved August 20, 2020.
- ^ "Moisture from Tropical Storm Fausto fuels NorCal thunderstorms". KTLA. August 16, 2020. Archived from the original on September 14, 2020. Retrieved August 16, 2020.
- ^ "Plume Of Topical Weather Triggers Red Flag Warning For Fire-Ravaged Northern California". sanfransisco.cbslocal.com. KPIX 5. August 22, 2020. Retrieved December 23, 2020.
- ^ "Storm Events Database". National Centers for Environmental Information. August 23, 2021. Retrieved January 27, 2021.
- ^ "Storm Events Database". National Centers for Environmental Information. August 22, 2020. Retrieved January 27, 2021.
- ^ "Storm Events Database". National Centers for Environmental Information. August 23, 2020. Retrieved January 27, 2021.