With Winter nearly upon us, it is important for every individual to be mindful of weather conditions and their potential impacts on personal safety, particularly when travelling. The National Weather Service issues several levels of advisories about predicted weather events. Those notices include:
1. Watch: A notice issued by NWS which indicates that predictions indicate conditions are favorable within a 24-48 hour window for severe weather to occur in this area.
2. Advisory: A notice issued by NWS which indicates that predictions indicate favorable conditions for severe weather within 12 hours.
3. Warning: A notice issued by the NWS which indicates that severe weather is imminent or occurring.
The Pullman area is susceptible to the following types of severe winter weather as defined by the National Weather Service. Individuals should take notices and NWS forecasts regarding these weather event into account when making travel plans:
Blizzard: Sustained winds or frequent gusts of 35 mph or greater AND visibility of less than ¼ mile due to snow or blowing snow.
Blowing Snow: Wind-driven falling or accumulated snow that reduces surface visibility, possibly hampering travel.
Heavy Snow: Accumulations of 4 inches or more in 12 hours, or 6 inches or more in 24 hours.
Freezing Rain: Rain or drizzle that freezes on surfaces.
