Weather Terms Defined
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.
Types of weather warnings
The National Weather Service (NWS) issues several levels of advisories about predicted weather events. Those weather advisory terms/levels include:
1. Watch: A NWS notice that severe weather conditions are likely within 24-48 hours.
2. Advisory: A NWS notice indicating that severe weather conditions are likely within 12 hours.
3. Warning: A NWS notice that severe weather is imminent or occurring.
Weather terms defined
The Pullman area is susceptible to the following types of severe winter weather, as defined by the NWS. Individuals should take notice of the NWS forecasts 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.