Drifting snow may be an issue for the Billings area until 6am on Monday morning as they are under a Winter Weather Advisory with closures on I-90 due to high wind.
Cold temperatures, some snow and more wind are going to affect most of Montana through Monday. Great Falls and Helena are both under Advisories with more Warnings and Advisories expected.
The Bozeman area will be extremely cold Tuesday night and Wednesday morning with some areas experiencing wind chills of -25 degrees. People and pets will be at risk for hypothermia.
Enough snow fell on Sunday night over the mountains of southwest Montana for the Gallatin National Forest Avalanche Center to issue an Avalanch Warning for Gallatin County on Monday.
Several inches of fresh snow in the mountains is attractive, but also dangerous. There has been an Avalanche Warning issued for Gallatin County, Friday December 2nd.
Bozeman streets were slick Monday morning with a fresh layer of snow. We could see a few more inches in the mountains by tonight with a Winter Weather Advisory until 11pm.
The good news is that much cooler weather is on the way. The bad news is that today is going to be hot and the winds are supposed to be erratic for many central and southern Montana counties prompting yet another Fire Weather Watch.
With so many students on their way back to Bozeman for the start of the MSU semester, be aware that western South Dakota is currently experiencing gusty winds and Rapid City is under a Wind Advisory.
Although we may see slush and rain in the valleys on Tuesday, mountain passes could see 2 - 5 inches of snow accumulation by Wednesday morning in southwest Montana.