Posted: Jul 25, 2013 2:07 PM by Meteorologist Mike Heard
Updated: Jul 25, 2013 2:17 PM
Stream flows across SW Montana are approaching extremely low levels. Early snowmelt in May and the dry and above normal warm weather this summer is leading to very low stream flows across western and SW Montana.
The graphic above shows the larger rivers within SW Montana with cfs (cubic feet per second) values and the percent of average values.
Most rivers in our region are running between 25% to 50% of average, however, there are a few notable exceptions. The Ruby River at Twin Bridges today is at 1.87', 24 cfs and that is 17% of average. Willow Creek at Harrison is barely running with a level of .34' and 1 cfs which is only 9% of average. The Jefferson River at Silver Star is at 2.71', 153 cfs and 25% of average.
River levels will continue to decline as the current weather pattern remains hot and dry. No major storms are likely to ease the low streams flow over the next 5 days.