Gale: Difference between revisions
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[[File:Brooklyn Museum - After a Gale--Wreckers - James Hamilton - overall.jpg|thumb|''After a Gale – Wreckers'' by [[James Hamilton (1819-1878)|James Hamilton]]]] |
[[File:Brooklyn Museum - After a Gale--Wreckers - James Hamilton - overall.jpg|thumb|''After a Gale – Wreckers'' by [[James Hamilton (1819-1878)|James Hamilton]]]] |
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[[File:Galewarning flag.svg|thumb|Gale warning flag]] |
[[File:Galewarning flag.svg|thumb|Gale warning flag]] Berit og Johanne er best!:)<ref> |
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A '''gale''' is a strong wind, typically used as a descriptor in nautical contexts. The U.S. [[National Weather Service]] defines a gale as 34–47 [[Knot (unit)|knots]] ({{nowrap|63–87 km/h}}, {{nowrap|17.5–24.2 m/s}} or {{nowrap|39–54 miles/hour}}) of sustained surface winds.<ref name="noaa_glossary">[https://w1.weather.gov/glossary/index.php National Weather Service Glossary], s.v. [https://w1.weather.gov/glossary/index.php?word=gale "gale"].</ref> Forecasters typically issue [[gale warning]]s when winds of this strength are expected. In the United States, a gale warning is specifically a maritime warning; the land-based equivalent in National Weather Service warning products is a [[wind advisory]]. |
A '''gale''' is a strong wind, typically used as a descriptor in nautical contexts. The U.S. [[National Weather Service]] defines a gale as 34–47 [[Knot (unit)|knots]] ({{nowrap|63–87 km/h}}, {{nowrap|17.5–24.2 m/s}} or {{nowrap|39–54 miles/hour}}) of sustained surface winds.<ref name="noaa_glossary">[https://w1.weather.gov/glossary/index.php National Weather Service Glossary], s.v. [https://w1.weather.gov/glossary/index.php?word=gale "gale"].</ref> Forecasters typically issue [[gale warning]]s when winds of this strength are expected. In the United States, a gale warning is specifically a maritime warning; the land-based equivalent in National Weather Service warning products is a [[wind advisory]]. |
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Other sources use minima asms], NovaLynx Corporation.</ref> |
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Other sources use minima as low as {{convert|28|kn|km/h m/s mph}}, and maxima as high as {{convert|90|kn|km/h m/s mph}}. Through 1986, the [[National Hurricane Center]] used the term gale to refer to winds of [[tropical]] force for coastal areas, between {{convert|33|kn|km/h m/s mph}} and {{convert|63|kn|km/h mph m/s}}. The {{convert|90|kn|km/h m/s mph}} definition is very non-standard. A common alternative definition of the maximum is {{convert|55|kn|km/h mph m/s}}.<ref>[http://www.novalynx.com/glossary-g.html Glossary of Meteorological Terms], NovaLynx Corporation.</ref> |
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The most common way of measuring wind force is with the [[Beaufort scale]]<ref>{{cite web|url=https://www.metoffice.gov.uk/guide/weather/marine/beaufort-scale|website=Met Officewebsite|title=Beaufort wind force scale}}</ref> which defines a gale as wind from {{convert|50|km/h|m/s}} to {{convert|102|km/h|m/s}}. It is an empirical measure for describing wind speed based mainly on observed sea conditions. On the original 1810 Beaufort wind force scale, there were four different "gale" designations whereas generally today there are two gale forces, 8 and 9, and a near gale 7: |
The most common way of measuring wind force is with the [[Beaufort scale]]<ref>{{cite web|url=https://www.metoffice.gov.uk/guide/weather/marine/beaufort-scale|website=Met Officewebsite|title=Beaufort wind force scale}}</ref> which defines a gale as wind from {{convert|50|km/h|m/s}} to {{convert|102|km/h|m/s}}. It is an empirical measure for describing wind speed based mainly on observed sea conditions. On the original 1810 Beaufort wind force scale, there were four different "gale" designations whereas generally today there are two gale forces, 8 and 9, and a near gale 7: |
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Revision as of 08:48, 25 May 2020
Berit og Johanne er best!:)Cite error: A <ref> tag is missing the closing </ref> (see the help page).</ref>
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A gale is a strong wind, typically used as a descriptor in nautical contexts. The U.S. National Weather Service defines a gale as 34–47 knots (63–87 km/h, 17.5–24.2 m/s or 39–54 miles/hour) of sustained surface winds.[1] Forecasters typically issue gale warnings when winds of this strength are expected. In the United States, a gale warning is specifically a maritime warning; the land-based equivalent in National Weather Service warning products is a wind advisory.
Other sources use minima asms], NovaLynx Corporation.</ref>
The most common way of measuring wind force is with the Beaufort scale[2] which defines a gale as wind from 50 kilometres per hour (14 m/s) to 102 kilometres per hour (28 m/s). It is an empirical measure for describing wind speed based mainly on observed sea conditions. On the original 1810 Beaufort wind force scale, there were four different "gale" designations whereas generally today there are two gale forces, 8 and 9, and a near gale 7:
| Wind force | Original name | Current name | km/h | m/s | mph | knots | Mean knots | Sea state |
|---|---|---|---|---|---|---|---|---|
| 7 | Moderate gale | Near gale | 50–61 | 14–17 | 32–38 | 28–33 | 30 | Rough–Very rough |
| 8 | Fresh gale | Gale | 62–74 | 17–20 | 39–46 | 34–40 | 37 | Very rough–High |
| 9 | Strong gale | Severe gale | 75–88 | 21–24 | 47–54 | 41–47 | 44 | High |
| 10 | Whole gale | Storm | 89–102 | 25–28 | 55–63 | 48–55 | 52 | Very High |
The word gale is derived from the older gail, but its origin is uncertain.[3]
References
- ^ National Weather Service Glossary, s.v. "gale".
- ^ "Beaufort wind force scale". Met Officewebsite.
- ^ "Online Etymology Dictionary". Etymonline.com. Retrieved 2014-03-23.