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As the winds howl, the snow flies and the temperatures drop, the National Weather Service issues various alerts for wintry weather. Winter storms can trigger warnings, watches and advisories. What ...
What's the difference between weather warnings and watches? What is an advisory? Here are weather safety terms you need to know.
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 on October 2, 2017; a winter weather advisory for lake-effect snow is now issued instead. Freezing rain advisory WSW (alt.: freezing drizzle advisory) – Freezing rain or freezing drizzle producing ice accretion of up to 1 ⁄ 4 inch (6.4 mm) that may cause significant travel impairments is expected or occurring. Discontinued on ...
A winter weather advisory is issued when snow, blowing snow, ice, sleet, or a combination of these wintry elements is expected, but conditions should not be hazardous enough to meet warning ...
When confidence increases in the occurrence of winter like conditions that are not expected to reach warning or other winter criteria, a winter weather advisory will be issued instead. A watch could be discontinued altogether if neither warning nor advisory-level conditions are expected to be met and when the possibility of a winter storm fades.
The National Weather Service office in Juneau issued a winter storm warning for the Skagway and White Pass areas of the state. Heavy snow with accumulations of up to 9 inches is expected to fall ...