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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.
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 ...
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 ...
For millions of us, winter weather has already started. As the winds howl, the snow flies and the temperatures drop, the National Weather Service issues various levels of alerts for wintry weather ...
The National Weather Service has upgraded a winter storm watch to a winter storm warning for central and southern Indiana, which is expected to receive up to 8 inches of snow on Sunday. The ...
Winter Storm Warning (WSW) – Issued when hazardous winter conditions are expected or occurring, including: a major snowfall of 25 cm (9.8 in) or more in a 24-hour period. a significant snowfall (snowfall warning criteria) combined with another winter hazard such as freezing rain, strong winds, blowing snow and/or extreme cold.
Winter storm warning; Winter storm watch; Winter weather advisory This page was last edited on 9 October 2023, at 23:55 (UTC). Text is available under the ...
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 ...