The National Weather Service in Missoula says some rivers in western Montana will likely rise starting this weekend and peak by Tuesday due to warmer temperatures.
Hydrologist Ray Nickless tells the Missoulian (http://bit.ly/15wNy0n) that the Clark Fork and Bitterroot rivers will go up about a foot by Saturday.
The National Weather Service also says the Flathead River will rise and could approach flood stage by Monday.
Nickless says the maximum temperature in Missoula was 82 on Wednesday, well above the normal high temperature of about 65 degrees.
He says the snowpack in the area is slightly below average but the warm weather is making it melt faster than is usual.