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Wind speed is affected by a number of factors and situations, operating on varying scales (from micro to macro scales). These include the pressure gradient, Rossby waves, jet streams, and local weather conditions. There are also links to be found between wind speed and wind direction, notably with the pressure gradient and terrain conditions.
A short burst of high speed wind is termed a wind gust; one technical definition of a wind gust is: the maxima that exceed the lowest wind speed measured during a ten-minute time interval by 10 knots (19 km/h; 12 mph) for periods of seconds. A squall is an increase of the wind speed above a certain threshold, which lasts for a minute or more.
Les Suêtes (western Cape Breton Highlands) high speed southeasterly winds [12] Sundowner, (strong offshore wind off the California coast) Washoe Zephyr (seasonal diurnal wind in parts of western Nevada) Williwaw (strong, violent wind occurring in the Strait of Magellan, the Aleutian Islands, and the coastal fjords of Southeast Alaska)
The National Weather Service is forecasting winds up to 40 mph across much of Michigan today, which, combined with today's frosty temperatures, could mean dangerous wind chill reports.
04011KT indicates the wind is from 040° true (north east) at 11 knots (20 km/h; 13 mph). In the United States, the wind direction must have a 60° or greater variance for variable wind direction to be reported and the wind speed must be greater than 3 knots (5.6 km/h; 3.5 mph).
Get the Roxbury, NJ local weather forecast by the hour and the next 10 days. Get the Roxbury, NJ local weather forecast by the hour and the next 10 days. ... 1 mph F 2 km/h C Wind. 33 ...
The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.
Thresholds governing the issuance of this type of small craft advisory vary among local geographic areas, and are based upon locally determined parameters such as wave steepness, wind speed and direction, and local bathymetry. Small craft advisory for winds SCAW – Wind speeds may pose potential hazards for maritime activity. Wave heights must ...
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