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The National Weather Service shares alerts as it warns of potential risks from thunderstorms, flooding, tornadoes and other dangers. But when forecasters issue a watch or a warning for a specific ...
The official scientific criteria of a derecho, as described by the National Weather Service's Storm Prediction Center, pertains to a swath of wind damage that must extend either continuously or ...
On land, the National Weather Service issues a 'high wind warning' (Specific Area Message Encoding code: HWW) for storm-force winds, which also encompasses the lesser gale-force and greater hurricane force winds. In most cases, the warning applies to winds of 40-114 MPH for at least 1 hour; or any gusts of 58-114 miles per hour on land unless a ...
Category 3 Hurricane Matthew's close passage of Brevard County, Florida on the morning of October 7, 2016 prompted the issuance of the first Extreme Wind Warning.. An extreme wind warning (SAME code EWW) is an alert issued by the National Weather Service for areas on land that will experience sustained surface winds 100 knots (115 mph, 185 km/h, 51 m/s) or greater within one hour.
See Severe weather terminology (United States) and/or Severe weather terminology (Canada) for comprehensive articles concerning specific nations' warnings, watches, advisories and related terms. Pages in category "Weather warnings and advisories"
A change in the jet stream pattern will favor long-tracking severe thunderstorm complexes beginning late in the Independence Day weekend and ongoing through next week from the northern Plains to ...
A weather warning generally refers to an alert issued by a meteorological agency to warn citizens of approaching dangerous weather.A weather watch, on the other hand, typically refers to an alert issued to indicate that conditions are favorable for the development of dangerous weather patterns, although the dangerous weather conditions themselves are not currently present.
An intense line of destructive thunderstorms known as a derecho wreaked havoc across the central United States on Thursday, blasting the region with tree-snapping winds on par with a Category 2 ...