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 >

- Map displaying storm reports. Click the image to view an interactive map of the reports.

- Visible Satellite loop during the afternoon hours of July 1, 2012

- Chronological sequence of radar images of a severe thunderstorm over northeastern Chesterfield County, SC around 2:30 pm. Note how the core of higher reflectivity values (60+ dbz are white) grows to over 40,000 ft by frame 4 and then descends to the surface in image 5.