Winter Weather Advisory issued December 26 at 2:48AM MST until December 26 at 2:00PM MST by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations mostly 1 to 3 inches, but up to 6 inches possible on mountain peaks. Winds gusting as high as 35 mph at times. * WHERE...Northwest Beaverhead County. * WHEN...Until 2 PM MST this afternoon. * IMPACTS...Plan for winter driving conditions, including slippery or snow-packed roads, and reduced visibility from falling snow and periods of blowing snow.
Avalanche Watch issued December 26 at 9:37AM MST by NWS Great Falls MT
AVATFX THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE GALLATIN NATIONAL FOREST AVALANCHE CENTER. BACKCOUNTRY AVALANCHE WATCH IMMEDIATE BROADCAST REQUESTED 10:00 MST Thu Dec 26 2024 The Gallatin NF Avalanche Center in Bozeman has issued a BACKCOUNTRY AVALANCHE WATCH for the following areas: Madison and Gallatin Mountain Range Zone * WHAT...Conditions are developing that will cause the avalanche danger to rise to HIGH by tomorrow. * WHERE...The Centennial Mountains near Island Park, Idaho; the Lionhead area near West Yellowstone, MT; and the southern Madison and southern Gallatin Mountain Ranges. * WHEN...In effect from Thu 10:00 MST to Fri
Avalanche Watch issued December 26 at 9:25AM MST by NWS Great Falls MT
AVATFX THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE GALLATIN NATIONAL FOREST AVALANCHE CENTER. BACKCOUNTRY AVALANCHE WATCH IMMEDIATE BROADCAST REQUESTED 10:00 MST Thu Dec 26 2024 The Gallatin NF Avalanche Center in Bozeman has issued a BACKCOUNTRY AVALANCHE WATCH for the following areas: Madison and Gallatin Mountain Range Zone * WHAT...Conditions are developing that will cause the avalanche danger to rise to HIGH by tomorrow. * WHERE...The Centennial Mountains near Island Park, Idaho; the Lionhead area near West Yellowstone, MT; and the southern Madison and southern Gallatin Mountain Ranges. * WHEN...In effect from Thu 10:00 MST to Fri
Special Weather Statement issued December 25 at 8:33PM MST by NWS Great Falls MT
Gusty winds will continue along the immediate eastern slopes of the Rockies through the evening. Sustained winds on the order of 35 to 45 mph, with gusts between 55 and 70 mph will persist through midnight before slowly diminishing later tonight. Those operating high profile vehicles should be prepared for difficult driving conditions if traveling near the Rocky Mountain Front this evening.
Winter Weather Advisory issued December 21 at 7:28PM MST until December 22 at 8:00AM MST by NWS Great Falls MT
* WHAT...Mixed precipitation expected, including light freezing rain. Total ice accumulations up to a light glaze. * WHERE...Hill County and Northern Blaine County. * WHEN...Until 8 AM MST Sunday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible.
Winter Weather Advisory issued December 21 at 2:28AM MST until December 22 at 8:00AM MST by NWS Great Falls MT
* WHAT...Freezing rain expected. Total ice accumulations ranging from a light glaze up to a tenth of an inch. * WHERE...Hill County and Northern Blaine County. * WHEN...From Midnight tonight to 8 AM MST Sunday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible.
Special Weather Statement issued December 18 at 7:06AM MST by NWS Great Falls MT
Temperatures are rising quickly in areas where winds have developed this morning. Relatively cold surfaces interacting with a warmer and more moist airmass may result in areas of frost on roadways. Ares most prone to this are elevated surfaces such as bridges. If traveling this morning, be prepared for slick roads in areas where temperatures have recently increased due to wind.
High Wind Warning issued December 18 at 2:43AM MST until December 19 at 12:00AM MST by NWS Great Falls MT
* WHAT...Southwest winds 45 to 55 mph, with gusts up to 80 mph expected. Isolated wind gusts approaching 100 mph in wind prone locations along the immediate eastern slopes of the Rocky Mountain Front. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until midnight MST tonight. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult to dangerous, especially for high profile vehicles. * ADDITIONAL DETAILS...Ensure any Christmas and Holiday decorations are secured today.
High Wind Warning issued December 18 at 2:43AM MST until December 19 at 5:00AM MST by NWS Great Falls MT
* WHAT...West winds 30 to 40 mph, with gusts up to 70 mph expected. * WHERE...Snowy and Judith Mountains, Bears Paw Mountains and Southern Blaine, Fergus County below 4500ft, Hill County, and Northern Blaine County. * WHEN...From 11 AM this morning to 5 AM MST Thursday. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult to dangerous, especially for high profile vehicles. * ADDITIONAL DETAILS...Ensure any Christmas and Holiday decorations are secured today.
Winter Storm Warning issued December 18 at 1:36AM MST until December 19 at 12:00AM MST by NWS Great Falls MT
* WHAT...Heavy snow expected. Total snow accumulations up to 5 inches at and below pass level, with up to a foot above pass level. Winds gusting as high as 95 mph. * WHERE...East Glacier Park Region Zone. * WHEN...Until midnight MST tonight. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. Widespread blowing snow could significantly reduce visibility. Very strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...The greatest snow amounts are forecast for the highest peaks in Glacier National Park. Strong winds will result in at least patchy blowing