National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

 

 
Select a model and site:
 
NBH NBS NBE NBX

 

Product Name Product Type Time step Forecast Hours covered
NBH Hourly 1-Hourly Hours 1-25
NBS Short 3-Hourly Hours 6-72*
NBE Extended 12-Hourly Hours 24-192*
NBX Super-Extended 12-Hourly Hours 204-264* (continuation of NBE)

 

grey dot iconUnderstanding...

Hourly (NBH) Guidance
Short (NBS) Guidancee
Extended (NBE) Guidance
Super-Extended (NBX) Guidance