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FGUS73 KBIS 290204

ESFBIS

NDC015-059-291815-



Hydrologic Outlook

National Weather Service Bismarck ND

804 PM CST Wed Feb 28 2024





...ICE JAM FORMING ON MISSOURI RIVER... 



Warm weather last week caused the loss of the ice on the Missouri 

River through the Bismarck and Mandan area. However, colder weather 

along with snow earlier this week has created sufficient ice moving 

downstream to once again fill in the river channel.



Since early Wednesday morning, ice has been collecting in the Fox 

Island area and restricting flow on the Missouri River. Water has 

been backing up on the Fox Island boat ramp parking lot. As ice 

continues to collect, increasingly higher water has, and will 

continue to move northward through the Bismarck and Mandan reach of 

the Missouri River.



The river stage at the onset of this ice jam was 9.6 ft as measured 

at the Bismarck gage on the Missouri River. Water levels due to ice 

jams are difficult to predict, but given the starting water 

elevation, and the current stage of 13.1 feet as of 8 PM, Wednesday 

at the Bismarck gage, there is a real risk of it reaching flood 

stage of 14.5 feet.



If you observe problematic high water, please report your 

observations to your local emergency management office.

$$



Schlag