National Weather Service United States Department of Commerce

Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

Catastrophic flooding and landslides will continue to bring a significant risk to life and property in Washington and northwest Oregon. Arctic air will bring near record cold temperatures and dangerous wind chills from the Northern High Plains into the Mid-South and Mid-Atlantic through the weekend. A narrow band of snow is likely from the Mid-West, Upper Ohio Valley into the Central Appalachians. Read More >

 
Hover over or click station to get METAR and TAF (if available). VFR   MVFR   IFR   LIFR

 

  Center Weather Service Unit ( )

Mission:

  Center Weather Service Unit Center Weather Service meteorologists provide weather support and consultation to FAA air traffic managers and controllers. Rerouting of aircraft around hazardous weather is based largely on forecasts provided by the CWSU meteorologist. National products issued by the CWSU meteorologist include Center Weather Advisories (CWA) and Meteorological Impact Statements (MIS). The CWA is a short term advisory valid for two hours or less describing areas of hazardous weather in progress or forecast to develop. The MIS is a forecast product valid up to 12 hours describing areas of weather that may impact air traffic operations.

 

Operations:

  CWSU meteorologists provide formal weather briefings to FAA supervisors within the   Air Route Traffic Control Center (ARTCC) for the day and evening shifts. Verbal briefings are given to individual controllers at the ARTCC and tower control facilities around the   airspace, as well as to equipment technicians when weather conditions dictate. Two types of written products are also provided by the CWSU meteorologists. The Meteorological Impact Statement (MIS) is a 4 to 12 hour planning forecast of weather conditions expected to impact the   air traffic. The Center Weather Advisory (CWA) is a short-term warning of hazardous weather conditions provided to all aviation interests, including private pilots, towers, flight service stations, and commercial airlines. Thus, a CWA is similar to but more localized than Airmets and Sigmets issued by the Aviation Weather Center (AWC) in Kansas City, Missouri.