Likelihood of HISTORIC Northern Rockies 3-5 day precipitation and snowmelt this week in some valleys and west slopes resulting in poor drainage ponding and stream flooding threats along with rockslides. Several feet of heavy snow above 8000 feet possible.

Rain, possibly mixed with snow before 3am, then rain between 3am and 4am, then rain likely, possibly mixed with snow after 4am. The rain could be heavy at times. Snow level 7100 feet lowering to 6000 feet after midnight . Low around 32. Windy, with a southwest wind 32 to 37 mph increasing to 40 to 45 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Snow. The snow could be heavy at times. Low around 30. Southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Rain and snow before 11pm, then snow between 11pm and 2am, then rain and snow after 2am. Snow level 5500 feet. Low around 33. Breezy. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Snow likely. Mostly cloudy, with a low around 31.

A chance of rain and snow. Snow level 6000 feet. Mostly cloudy, with a low around 31.

A chance of snow. Mostly cloudy, with a low around 31.