National Weather Service United States Department of Commerce

Atmospheric River in the Pacific Northwest and Northern Rockies this Weekend

A Pacific storm and atmospheric river will impact the Pacific Northwest states and northern Rockies this weekend, bringing locally heavy low elevations rain and heavy high elevation snow in the mountains. By Sunday over the Interior Northwest, rain combined with snowmelt will increase the risk of flood hazards. Flood Watches are in effect. Read More >

This visible satellite image was taken at 900am PDT 9 Aug 00. Fires in central Idaho and southwest Montana generate huge amounts of smoke. This smoke was carried by the upper level winds across South Dakota and Nebraska, and into Iowa and Ilinois.

Visible satellite image showing smoke from western Montana fires extending into the Midwest

This image was taken at the same time as the above picture. Note the dense smoke filling in many of the valleys in central Idaho and southwest Montana.

Satellite image showing thick smoke in western Montana valleys