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A winter storm warning (SAME code: WSW) is a hazardous weather statement issued by Weather Forecast Offices (WFO) of the National Weather Service (NWS) in the United States to alert the public that a winter storm is occurring or is about to occur in the area, usually within 36 hours of the storm's onset.
Discontinued beginning with the 2008-2009 winter storm season and replaced by the winter storm warning for heavy sleet. [24] Sleet advisory WSW – Moderate sleet accumulations of 1 ⁄ 4 to 1 inch (0.64 to 2.54 cm) are imminent or expected to occur within 12 hours. Because sleet usually occurs with other precipitation types, a Winter Weather ...
A winter weather advisory (originally identified as a Traveler's Advisory until the 2002-03 climatological winter when officially renamed, and informally as such by some local television stations thereafter) is a hazardous weather statement issued by local Weather Forecast Offices (WFO) of the National Weather Service in the United States when one or more types of winter precipitation—snow ...
What is a winter storm warning and watch? The National Weather Service uses specific alerts to warn of oncoming bad winter weather: A Winter Storm Watch is issued by the weather service when there ...
During a warning, people are urged to go inside right away. “There is imminent danger to life and property,” the weather service wrote on its website. “Move to an interior room on the lowest ...
In US maritime warning flag systems, a red square flag with a black square taking up the middle ninth of the flag is used to indicate a storm warning (the use of two such flags denotes a hurricane force wind warning or a hurricane warning). The same flag as a storm warning is used to indicate a tropical storm warning. On land, the National ...
As the winds howl, the snow flies and the temperatures drop, the National Weather Service issues various alerts for wintry weather.
Local Weather Forecast Offices (WFO) of the National Weather Service may issue a Special Weather Statement to alert of a specified hazard that is approaching or below warning or advisory criteria, that does not have a specific alert product code of their own (such as for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong ...