MONTANA SNOW REPORT

* WHAT...Snow and blowing snow expected. Total snow accumulations up to one inch. Winds gusting as high as 75 mph. * WHERE...Central and Southern Phillips, Garfield, Prairie and Wibaux Counties. * WHEN...From 4 PM this afternoon to 6 AM MST Thursday. * IMPACTS...Plan on significantly reduced visibility and slippery road conditions.

* WHAT...Periods of heavy snow possible. Total snow accumulations between 1 and 2 feet, greatest on west facing aspects. Winds could gust as high as 70 mph. * WHERE...Absaroka/Beartooth Mountains. * WHEN...From Thursday morning through late Friday night. * IMPACTS...Recreation in the high country could be impacted by heavy accumulating snow and blowing snow. Avalanche danger may increase.

* WHAT...Snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 75 mph. * WHERE...The Mountains of Southwestern Montana south of Interstate 90, and Little Belt and Highwood Mountains. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions developing this morning over mountain passes. Blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage.

* WHAT...Snow with a period of heavy snow this morning. Total snow accumulations between 3 and 8 inches at Marias Pass with higher amounts over the mountains in Glacier National Park. Winds could gust over 70 mph at times. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be very difficult to dangerous and tire chains may be required for some vehicles. Visibility may drop below 1/4 mile at times due to falling and blowing snow. Those in the backcountry should ensure they are prepared for dangerous conditions.

* WHAT...Heavy snow possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations between 1 to 5 inches in the valleys and up to 24 inches in the mountains possible. Winds could gust as high as 45 mph. * WHERE...Highway 93 Sula to Lost Trail Pass, Dixie, Elk City, Highway 12 Lowell to Lolo Pass, and Lolo Pass. * WHEN...From late Wednesday night through late Friday night. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Thursday morning and evening commutes, especially over higher passes. Gusty winds could bring down tree branches.

* WHAT...Damaging winds and heavy snow expected. There is a likelihood of major winter weather impacts to isolated extreme winter storm impacts. Total snow accumulations of 2 to 5 in inches in the valleys and 8 to 12 inches at pass level. Damaging winds gusting as high as 60 mph in the lower elevations, 70 mph in higher terrain. * WHERE...Essex, Marias Pass, Bad Rock Canyon, Polebridge, Glacier National Park, and Highway 83 Bigfork to Swan Lake. * WHEN...From 8 PM this evening to 11 PM MST Wednesday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes. Strong winds could cause tree damage.

* WHAT...West winds 35 to 50 mph with gusts up to 75 mph expected. * WHERE...Central and Southern Phillips, Dawson, Garfield, McCone, Petroleum, Prairie and Wibaux Counties. * WHEN...From 8 AM this morning to 3 AM MST Thursday. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel will be difficult, especially for high profile vehicles.

* WHAT...For the High Wind Warning, west to northwest winds 35 to 50 mph with gusts up to 70 mph expected. For the Cold Weather Advisory, very cold wind chills as low as 30 below expected. * WHERE...Valley, Daniels, Roosevelt, Northern Phillips, Richland and Sheridan Counties. * WHEN...For the High Wind Warning, from 8 AM this morning to 3 AM MST Thursday. For the Cold Weather Advisory, from 10 PM this evening to 10 AM MST Thursday. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel will be difficult, especially for high profile vehicles. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

* WHAT...West winds gusting 60 to 70 mph expected. * WHERE...A portion of southeast Montana. * WHEN...From 11 AM this morning to 5 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. Secure loose outdoor items. * ADDITIONAL DETAILS...Areas of light snow are expected tonight, which combined with the strong winds could lead to blowing snow and reduced visibility.

* WHAT...West winds with gusts 65 to 75 mph expected. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...Until 2 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. Recreation in the high country will be difficult.

* WHAT...Southwest to west winds gusting 60 to 70 mph expected. * WHERE...Red Lodge Foothills. * WHEN...Until 2 AM MST Thursday. * IMPACTS...Damaging winds could blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. Secure loose outdoor items. * ADDITIONAL DETAILS...Winds through this morning will be erratic, with periodic strong winds surging down the mountain slopes. Afternoon and evening winds will be out of the west to northwest and steadier.

* WHAT...West winds gusting to 85 mph expected. * WHERE...Absaroka/Beartooth Mountains and Crazy Mountains. * WHEN...Until 2 AM MST Thursday. * IMPACTS...Recreation in the high country will be difficult due to high winds and blowing snow over the exposed higher peaks.

* WHAT...West winds gusting 65 to 75 mph expected. * WHERE...Judith Gap, Southern Wheatland, Melville Foothills, and Northern Sweet Grass. * WHEN...Until 2 AM MST Thursday. * IMPACTS...Strong crosswinds will make travel difficult along Highway 191 from Big Timber through Judith Gap. The highest gusts may cause damage to trees, power lines and some structures. Secure loose outdoor items.

* WHAT...West winds gusting 50 to 60 mph expected. * WHERE...Northern Park. * WHEN...Until 11 PM MST this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest winds are expected this afternoon and evening.

* WHAT...Southwest to west winds gusts 55 to 70 mph expected. * WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. * WHEN...Until 2 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan. Secure loose outdoor items. * ADDITIONAL DETAILS...Winds through this morning will be erratic, with periodic strong winds surging down the mountain slopes. Afternoon and evening winds will be out of the west to northwest and steadier.

* WHAT...West winds gusting near 80 mph expected. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until 11 PM MST this evening. * IMPACTS...Strong crosswinds will make travel difficult, especially for high profile vehicles, on Interstate 90 from Livingston to Big Timber and roads along the Beartooth Foothills. The highest gusts may cause damage to trees, power lines and some structures. Secure loose outdoor items.

* WHAT...West winds gusting 60 to 70 mph expected. * WHERE...Portions of central and south central Montana. * WHEN...From 8 AM this morning to 2 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. Secure loose outdoor items. * ADDITIONAL DETAILS...Highest gusts will be in the afternoon and evening.

* WHAT...Southwest winds gusting 55 to 65 mph expected. * WHERE...Paradise Valley. * WHEN...Until 11 PM MST this evening. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult on Highway 89 through the Paradise Valley, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest winds are expected through this afternoon and early evening.

* WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected. Isolated wind gusts in excess of 85 mph are possible. * WHERE...The Plains and Island Ranges of North Central Montana. * WHEN...Until midnight MST tonight. * IMPACTS...Travel will be difficult to impossible, especially for high profile vehicles. Damaging winds will blow down trees and power lines. Power outages are expected and may be of long duration. Blowing dust could significantly reduce visibility at times. * ADDITIONAL DETAILS...This is a dangerous situation! This windstorm will be reminiscent of the January 2021 windstorm.

* WHAT...West winds 35 to 55 mph with gusts up to 90 mph expected and gusts over 100 mph possible, especially close 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...Until midnight MST tonight. * IMPACTS...Travel will be very difficult to impossible! Damaging winds will blow down trees and power lines. Power outages are expected and could be of long duration. Blowing dust could significantly reduce visibility at times. * ADDITIONAL DETAILS...This is a dangerous situation! This windstorm will be reminiscent of the January 2021 windstorm.

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph expected. Isolated gusts in excess of 85 mph will be possible in wind prone areas. * WHERE...Portions of central and southwest Montana. * WHEN...Until midnight MST tonight. * IMPACTS...Travel will be very difficult, especially for high profile vehicles. Damaging winds will blow down trees and power lines. Power outages are expected. Isolated blowing snow in the mountains and dust at lower elevations will cause areas of poor visibility. * ADDITIONAL DETAILS...This is a dangerous situation! This windstorm will be reminiscent of the January 2021 windstorm.

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lower Hells Canyon/Salmon River Region, Orofino/Grangeville Region, Southern Clearwater Mountains, and Northern Clearwater Mountains. * WHEN...From 1 AM to 1 PM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

* WHAT...West winds 30 to 40 mph with gusts up to 70 mph expected. Gusts greater than 80 mph could be experienced from Garrison Junction to MacDonald Pass and Deer Lodge to Anaconda. * WHERE...Butte/Blackfoot Region and Potomac/Seeley Lake Region. * WHEN...From 2 AM to 8 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Eastern Lemhi County and Western Lemhi County. * WHEN...From 2 AM to 2 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph expected. West to East canyons could have gusts greater than 80 mph from Florence to Corvallis and Charlos Heights to Conner. * WHERE...Bitterroot/Sapphire Mountains and Missoula/Bitterroot Valleys. * WHEN...From 2 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

* WHAT...Southwest winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Flathead/Mission Valleys, Kootenai/Cabinet Region, and Lower Clark Fork Region. * WHEN...From 2 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

* WHAT...Flash Flooding caused by a potential failure of the Lower Flower Creek Diversion Structure related to additional rainfall early this week. Officials are currently working to mitigate this potential hazard by releasing additional water to take pressure off the diversion structure; these water flows are expected to stay below peak levels during the flood event last Thursday. * WHERE...Libby, MT. * WHEN...Through Wednesday afternoon. * IMPACTS...A failure of the diversion structure may result in flooding of urban areas. * ADDITIONAL DETAILS... - Recent heavy rain caused damage to the Lower Flower Creek Diversion Structure. Forecast rainfall has the potential to cause additional damage to the structure, bringing the risk for uncontrolled water released into the town of Libby. The main Flower Creek Dam is stable and functioning as designed. - https://www.weather.gov/mso/hydrology