Winter Storm Watch issued January 6 at 1:20PM MST until January 8 at 5:00PM MST by NWS Great Falls MT
* WHAT...Ground blizzard conditions possible. Westerly winds 30 to 40 mph, with gusts up to 75 mph possible. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...From Tuesday afternoon through Wednesday afternoon. * IMPACTS...Blowing and drifting snow may cause ground blizzard conditions, partial to full roadway blockages due to snow drifts, and hazardous to impossible travel. Plan for potential road closures. * ADDITIONAL DETAILS...Westerly winds increase as early as Tuesday afternoon, with the strongest winds and worst conditions expected Tuesday night into Wednesday morning.
Special Weather Statement issued January 5 at 3:56PM MST by NWS Great Falls MT
Light snow will affect areas around Helena and Boulder through late this afternoon. Visibility will be reduced to one mile at times. Snow accumulations of one half inch to around an inch and half will be possible through this evening. Those traveling through the Helena area, including on Interstate 15 from Wolf Creek through Helena to Boulder should be alert for changing road conditions.
Winter Weather Advisory issued January 5 at 12:23PM MST until January 6 at 11:00AM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations between 2 and 5 inches across lower elevations and mountain passes, with amounts approaching 9 inches above 7000 feet. * WHERE...Big Belt, Bridger and Castle Mountains and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until 11 AM MST Monday. * IMPACTS...Plan on slippery road conditions.
Winter Weather Advisory issued January 5 at 12:23PM MST until January 6 at 5:00AM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches across most lower elevations including the Interstate 15 corridor, with up to 9 inches over the highest peaks. * WHERE...Elkhorn and Boulder Mountains. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan for winter driving conditions.
Special Weather Statement issued January 5 at 12:35AM MST by NWS Great Falls MT
Patchy dense for is forming in Eastern Glacier, Western Toole, Central Pondera and Eastern Pondera, and Eastern Teton Counties. This fog will reduce visibility down to a quarter-mile or less. Visibility will be highly variable across short distances. If traveling, be prepared for changing conditions. If you encounter fog, slow down and use caution.
Winter Weather Advisory issued January 4 at 1:31PM MST until January 6 at 11:00AM MST by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches. * WHERE...Little Belt and Highwood Mountains. * WHEN...From 5 AM Sunday to 11 AM MST Monday. * IMPACTS...Travel could be very difficult.
Winter Weather Advisory issued January 4 at 1:31PM MST until January 6 at 5:00AM MST by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations up to two inches below pass level and between 2 and 6 inches at and above pass level. * WHERE...Northwest Beaverhead County. * WHEN...From 5 AM Sunday to 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions.
Winter Storm Warning issued January 4 at 1:31PM MST until January 4 at 5:00PM MST by NWS Great Falls MT
* WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations of 2 to 4 inches. For the Winter Weather Advisory, snow expected. Total snow accumulation between 2 and 8 inches. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...For the Winter Storm Warning, until 5 PM MST this afternoon. For the Winter Weather Advisory, from 5 AM Sunday to 11 AM MST Monday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Snow will end this evening with a brief lull before picking back up Sunday morning.
Winter Weather Advisory issued January 4 at 1:31PM MST until January 4 at 5:00PM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations up to 2 inches. * WHERE...Madison River Valley and Missouri Headwaters. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slippery road conditions.
Winter Weather Advisory issued January 3 at 3:07PM MST until January 4 at 5:00PM MST by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations up to 3 inches. * WHERE...Missouri Headwaters. * WHEN...From 5 AM to 5 PM MST Saturday. * IMPACTS...Plan on slippery road conditions.