National Weather Service United States Department of Commerce

Heavy Snow and Strong Winds Across the North-Central U.S.; Heavy Rain and Flash Flooding in American Samoa and Puerto Rico

Areas of moderate to heavy snow and gusty to high winds are expected across the Northern Plains, Upper Midwest and Great Lakes into Friday. Several inches of snow accumulation is expected. Heavy rain will bring an isolated flash flood threat to Puerto Rico and flash flooding along with mudslides to American Samoa today. 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.