Special Weather Statement issued December 29 at 9:30AM MST by NWS Great Falls MT
An area of light snow will continue to lift northward and impact the Helena area through the morning hours before mixing with and or changing to rain in the afternoon. Accumulations will generally be on the lighter side and mostly on the grassy surfaces. Expect totals around an inch or less; however, localized areas may see higher amounts. Impacts will include reduced visibility and wet or slushy road surfaces. Anyone traveling should be prepared for winter driving conditions. Slow down and allow extra time to reach your destination.
Winter Storm Watch issued December 28 at 1:26AM MST until December 30 at 5:00PM MST by NWS Great Falls MT
* WHAT...For the Winter Weather Advisory, periods of snow through this evening with additional snow accumulations up to 4 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy snow possible Sunday and Sunday night with total snow accumulations between 4 and 10 inches possible. * WHERE...Little Belt and Highwood Mountains. * WHEN...For the Winter Weather Advisory, until 5 AM MST Sunday. For the Winter Storm Watch, from Sunday morning through Monday afternoon. * IMPACTS...Travel may be difficult at times due to slippery roads and reduced visibility.
Winter Storm Watch issued December 28 at 1:26AM MST until December 30 at 11:00AM MST by NWS Great Falls MT
* WHAT...Heavy snow possible. Total snow accumulations between 4 and 12 inches possible. Winds could gust as high as 35 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From late tonight through Monday morning. * IMPACTS...Travel may be difficult at times due to slippery roads and reduced visibility.
Winter Weather Advisory issued December 28 at 1:26AM MST until December 29 at 5:00AM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations up to 4 inches over Marias Pass with 4 to 8 inches above 6000 feet. Winds gusting as high as 40 mph. * WHERE...East Glacier Park Region Zone. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Plan on winter driving conditions, including slippery roads and reduced visibility. * ADDITIONAL DETAILS...Snow diminishes for a period tonight with another round of snow likely Sunday into Monday.
Winter Weather Advisory issued December 28 at 1:26AM MST until December 28 at 5:00PM MST by NWS Great Falls MT
* WHAT...Periods of snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 35 mph. * WHERE...Northwest Beaverhead County. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on winter driving conditions, including slippery roads and reduced visibility at times.
Avalanche Watch issued December 27 at 7:39AM MST by NWS Great Falls MT
AVATFX THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE GALLATIN NATIONAL FOREST AVALANCHE CENTER. ...The Gallatin NF Avalanche Center in Bozeman has issued a BACKCOUNTRY AVALANCHE WATCH for the Lionhead Area, and the Southern Madison and Southern Gallatin Mountain Ranges until 5 AM MST Saturday... * WHAT...Conditions are developing that will cause the avalanche danger to rise to HIGH by Sunday. * WHERE...The Lionhead area near West Yellowstone, MT; and the southern Madison and southern Gallatin Mountain Ranges. * WHEN...In effect from Friday 5 AM MST to Saturday 5 AM MST. * IMPACTS...Heavy snowfall is expected to overload
Avalanche Watch issued December 27 at 5:29AM MST by NWS Great Falls MT
AVATFX THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE GALLATIN NATIONAL FOREST AVALANCHE CENTER. ...The Gallatin NF Avalanche Center in Bozeman has issued a BACKCOUNTRY AVALANCHE WATCH for the Lionhead Area, and the Southern Madison and Southern Gallatin Mountain Ranges until 5 AM MST Saturday... * WHAT...Conditions are developing that will cause the avalanche danger to rise to HIGH by Sunday. * WHERE...The Lionhead area near West Yellowstone, MT; and the southern Madison and southern Gallatin Mountain Ranges. * WHEN...In effect from Friday 5 AM MST to Saturday 5 AM MST. * IMPACTS...Heavy snowfall is expected to overload
Winter Weather Advisory issued December 27 at 3:42AM MST until December 27 at 11:00PM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches at lower elevations and 3 to 6 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions.
High Wind Warning issued December 26 at 2:53AM MST until December 27 at 8:00AM MST by NWS Great Falls MT
* WHAT...Southwest winds 30 to 40 mph with gusts mostly up to 65 mph expected, but gusts could reach 80 mph at times on the foothills and plains adjacent to the Rocky Mountain Front. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...From 2 PM this afternoon to 8 AM MST Friday. * IMPACTS...High winds may move loose debris and damage outdoor property, such as holiday decorations. Travel could be difficult, especially for high profile vehicles.
Winter Weather Advisory issued December 26 at 2:48AM MST until December 27 at 11:00PM MST by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches in the mountains, and 3 to 6 inches in higher valleys and over mountain passes. Winds gusting as high as 40 mph at times. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until 11 PM MST Friday. * IMPACTS...Plan for winter driving conditions, including snow-packed roads, and reduced visibility from falling snow and periods of blowing snow. * ADDITIONAL DETAILS...Snow is forecast to fall in two separate periods; today into this evening and Friday into Friday evening. Each period could produce 3 to 6 inches of snow