Ice jam flooding impacting the Jefferson River

Posted at 1:22 PM, Dec 28, 2020
and last updated 2020-12-28 15:22:45-05

BOZEMAN – A dry weather pattern in the short term forecast despite a weak clipper cold front passing through tonight across Montana. This front will keep temperatures on the colder side or near normal through Tuesday.

The next weather maker is another Pacific storm system that should produce scattered snow Wednesday night through Thursday especially for mountains and passes.

Snow accumulations of 1”-4” is possible form most passes and could produce some wintry travel impacts Thursday morning into Thursday afternoon.

The other big weather news is a FLOOD ADVISORY has been issued for a small stretch of the Jefferson River just west of Three Forks.

An ice jam has developed and is producing high water levels behind the jam and that is creating some flooding issues. Law enforcement has reported the river channel is nearly full of ice and water levels are near bankfull.

Low lying areas just west of Three Forks may experience flooding.

Ice jams are highly unpredictable and water levels may rise or fall quickly with little to no notice. Livestock and equipment near the river should be moved to higher ground if it's safe to do so.