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 >

HYDROLOGIC OUTLOOK

NATIONAL WEATHER SERVICE BISMARCK ND

1207 PM CDT Thu Oct 17 2019

...INCREASED RELEASES OUT OF GARRISON DAM...

The U.S. Army Corps of Engineers has announced a 2000 cubic feet per second increase in discharge from Garrison Dam beginning today. This will put the total release from Garrison Dam at 48,000 cfs. Downstream areas, such as the Bismarck and Mandan area, will see an increase of about 0.3 feet in water levels. Missouri River levels at the Bismarck gage have been between 11.0 and 11.2 feet as of late and this new discharge suggests river stages may range as high as 11.5 ft well into the first half of November.