Swan Lake, MT Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Swan Lake.

Use the Radar Maps link provided to understand the trajectory of a storm.

Winter Weather Advisory issued November 5 at 2:26AM MST until November 6 at 11:00AM MST by NWS Billings MT

* WHAT...Snow and Blowing Snow expected. Total snow accumulations between 2 and 5 inches with locally heavier accumulations possible. Winds gusting as high as 40 mph creating areas of blowing snow. * WHERE...In Montana, Bighorn Canyon, Northern Big Horn, Southern Big Horn, and Southern Rosebud. In Wyoming, Sheridan Foothills. * WHEN...From 2 PM this afternoon to 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous by Tuesday evening. Plan on slippery road conditions. Blowing snow could significantly reduce visibility at times. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...The heaviest snow will be in the higher hills and foothills above 4500 feet on north facing slopes.

Winter Storm Warning issued November 5 at 2:26AM MST until November 6 at 11:00AM MST by NWS Billings MT

* WHAT...Heavy Snow and Blowing Snow expected. Total snow accumulations between 7 and 14 inches. Winds gusting as high as 45 mph creating significant blowing and drifting snow. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From 2 PM this afternoon to 11 AM MST Wednesday. * IMPACTS...Recreation in the high country will be impacted by heavy accumulating snow. Travel could be very difficult on US-14. Widespread blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches and recently burned timber. * ADDITIONAL DETAILS...The heaviest snowfall will be on north and northwest facing slopes to the north of Burgess Junction.

Winter Weather Advisory issued November 5 at 2:26AM MST until November 6 at 11:00AM MST by NWS Billings MT

* WHAT...Snow and Blowing Snow expected. Total snow accumulations of 1 to 4 inches. Winds gusting as high as 40 mph creating ares of blowing snow. * WHERE...Musselshell, Treasure, and Northern Rosebud. * WHEN...From 2 PM this afternoon to 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous by Tuesday evening. Plan on slippery road conditions. Blowing snow could significantly reduce visibility at times. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...The heaviest snowfall will be over the higher hills on north facing slopes.

Winter Weather Advisory issued November 5 at 2:26AM MST until November 6 at 11:00AM MST by NWS Billings MT

* WHAT...Snow and Blowing Snow expected. Total snow accumulations between 2 and 5 inches with locally heavier accumulations possible. Winds gusting as high as 50 mph creating significant blowing and drifting snow. * WHERE...Judith Gap. * WHEN...From 2 PM this afternoon to 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous by Tuesday evening. Travel could be very difficult from Harlowton through Judith Gap. Widespread blowing snow could produce near whiteout conditions at times. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...The heaviest snowfall will be in the higher foothills of the Little Belt and Big Snowy mountains.

Winter Weather Advisory issued November 5 at 2:20AM MST until November 6 at 11:00AM MST by NWS Glasgow MT

* WHAT...Snow expected. Total snow accumulations between 1 and 3 inches. Winds gusting as high as 40 mph. * WHERE...Garfield and Petroleum Counties. * WHEN...From 2 PM this afternoon to 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges, will likely become slick and hazardous. Areas of blowing snow will reduce visibility to less than one mile at times.

Winter Storm Warning issued November 5 at 2:20AM MST until November 6 at 11:00AM MST by NWS Glasgow MT

* WHAT...Heavy snow expected over Little Rocky Mountains. Total snow accumulations up to 10 inches. Winds gusting as high as 40 mph. * WHERE...Southwest Phillips County. * WHEN...From 11 AM this morning to 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges, will likely become slick and hazardous. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult.

Blizzard Warning issued November 5 at 1:44AM MST until November 5 at 8:00AM MST by NWS Great Falls MT

* WHAT...For the Blizzard Warning, blizzard conditions. Additional snow accumulations up to 4 inches. Winds gusting as high as 70 mph. For the Winter Weather Advisory, snow expected. Total snow accumulations between 2 and 7 inches. Winds gusting as high as 55 mph. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...For the Blizzard Warning, until 8 AM MST this morning. For the Winter Weather Advisory, from 8 AM this morning to 11 PM MST this evening. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility.

Winter Storm Warning issued November 5 at 1:44AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Heavy snow expected. Total snow accumulations of 8 to 16 inches in the Sweetgrass Hills above 4000 feet, with up to 4 inches over the plains. Winds gusting as high as 60 mph. * WHERE...Eastern Toole and Liberty Counties. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility. Strong winds could cause power outages.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Snow. Additional snow accumulations up to 6 inches. Winds gusting as high as 55 mph. * WHERE...Upper Blackfoot and MacDonald Pass and Northwest Beaverhead County. * WHEN...Until 11 PM MST this evening. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. Strong winds could cause extensive damage to trees and power lines.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Snow. Additional snow accumulations up to 2 inches across lower elevations, with higher amounts in the northern foothills of the Highwood Mountains. Winds gusting as high as 50 mph. * WHERE...Eastern Pondera and Eastern Teton Counties, and Western and Central Chouteau County. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...For the Blizzard Warning, blizzard conditions. Additional snow accumulations up to 4 inches. Winds gusting as high as 70 mph. For the Winter Weather Advisory, snow expected. Total snow accumulations between 2 and 7 inches. Winds gusting as high as 55 mph. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...For the Blizzard Warning, until 8 AM MST this morning. For the Winter Weather Advisory, from 8 AM this morning to 11 PM MST this evening. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches, with 4 to 8 inches across the Milk River Ridge in Glacier County. Winds gusting as high as 60 mph. * WHERE...The foothills and plains adjacent to the Rocky Mountain Front, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions. Strong winds could cause extensive damage to trees and power lines.

Winter Storm Warning issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Total snow accumulations between 15 and 30 inches in northerly upslope favored areas, with 7 to 14 inches possible elsewhere. Winds could gust as high as 55 mph. * WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains. * WHEN...From 5 AM early this morning to 5 AM MST Wednesday. * IMPACTS...Travel could be very difficult to impossible, and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. Widespread blowing snow could significantly reduce visibility. Strong winds could cause damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches will occur from late Tuesday morning through early Wednesday morning. These high snowfall rates will lead to rapid snow accumulations on roads.

Winter Storm Warning issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Heavy snow. Additional snow accumulations up to 5 inches below 7000 feet, with up to 15 inches above 7000 feet. Winds gusting as high as 40 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. Gusty winds could bring down tree branches.

Winter Storm Warning issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 14 inches in northerly upslope favored areas, with 2 to 7 inches possible elsewhere including in Great Falls Area. Isolated totals approaching 2 feet are possible between Armington Junction and Geyser. Winds could gust as high as 60 mph. * WHERE...Cascade County below 5000ft, Fergus County below 4500ft, and Judith Basin County and Judith Gap. * WHEN...From 5 AM early this morning to 5 AM MST Wednesday. * IMPACTS...Travel could be very difficult to impossible, especially. Widespread blowing snow could significantly reduce visibility. The hazardous conditions will impact the Tuesday morning and evening commutes. * ADDITIONAL DETAILS...Snowfall rates between 2 PM MST Tuesday and 12 AM MST Wednesday of 1 to 2 inches will lead to rapid accumulations on roads like US Hwy 89 and Montana Hwy 200 from Armington Junction to Geyser and US Hwy 89 from Armington Junction south into the Little Belt Mountains.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Snow. Additional snow accumulations between 2 and 8 inches. Winds gusting as high as 50 mph. * WHERE...Elkhorn and Boulder Mountains and Gates of the Mountains. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches.

Winter Weather Advisory issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Snow. Additional snow accumulations between 3 and 7 inches below 7000 feet, with 7 to 14 inches above 7000 feet. Winds gusting as high as 40 mph. * WHERE...Big Belt, Bridger and Castle Mountains and Meagher County Valleys. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. Strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...The heaviest snow is expected Tuesday afternoon and evening across Bozeman and Deep Creek Passes.

Winter Storm Warning issued November 5 at 1:44AM MST until November 6 at 5:00AM MST by NWS Great Falls MT

* WHAT...Heavy snow expected. Total snow accumulations up to 3 inches on the downwind side of the Bears Paw Mountains, 3 to 12 inches on the windward mid-slopes, and 12 to 24 inches above 4000 feet. Winds gusting as high as 40 mph. * WHERE...Bears Paw Mountains and Southern Blaine. * WHEN...From 5 AM early this morning to 5 AM MST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches will occur from late Tuesday morning through early Wednesday morning above 4000 feet in the Bears Paw Mountains. These high snowfall rates will lead to rapid snow accumulations on roads.

High Wind Warning issued November 5 at 12:37AM MST until November 5 at 8:00AM MST by NWS Great Falls MT

* WHAT...West winds 30 to 40 mph, with gusts up to 70 mph. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...Until 8 AM MST this morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles.

High Wind Warning issued November 5 at 12:37AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Northwest winds 25 to 35 mph, with gusts up to 60 mph. * WHERE...The foothills and plains adjacent to the Rocky Mountain Front, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until 11 PM MST this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.

High Wind Warning issued November 5 at 12:37AM MST until November 5 at 11:00PM MST by NWS Great Falls MT

* WHAT...Northwest winds 25 to 35 mph, with gusts up to 60 mph. * WHERE...Eastern Toole and Liberty Counties, Judith Basin County and Judith Gap, Fergus County below 4500ft, and Snowy and Judith Mountains. * WHEN...Until 11 PM MST this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur between and near terrain gaps like the US Hwy 89 and Montana Hwy 200 corridor between the Little Belt and Highwood Mountains, in addition to areas immediately downwind of the island ranges of Central and North Central Montana.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 11:00AM MST by NWS Missoula MT

* WHAT...Snow expected. Likelihood of minor to moderate impacts from around 1 to 3 inches of snow is 100 percent, and 3 to 6 inches of snow is 90 percent. Snow squalls will have the potential for brief heavy snow, leading to low visibility and icy conditions. Winds gusting as high as 45 mph. * WHERE...Homestake Pass, Butte, Highway 12 Garrison to Elliston, Georgetown Lake, and MacDonald Pass. * WHEN...From 5 PM this afternoon to 11 AM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving. These conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 11:00AM MST by NWS Missoula MT

* WHAT...Snow expected. Likelihood of minor to moderate impacts from around 1 to 2 inches of snow is 80 percent, and isolated areas of 2 to 4 inches is 30 percent. Snow bands will have the potential for brief moderate to heavy snow, leading to low visibility and icy conditions. Winds gusting as high as 35 mph. * WHERE...Mission Valley, Polson, Flathead Lake, and Flathead Valley. * WHEN...From 6 PM this evening to 11 AM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 11:00AM MST by NWS Missoula MT

* WHAT...Snow expected. Likelihood of minor to moderate impacts from around 1 to 2 inches of snow is 80 percent, and isolated areas of 2 to 4 inches is 30 percent. Snow bands will have the potential for brief moderate to heavy snow, leading to low visibility and icy conditions. Winds gusting as high as 40 mph. * WHERE...Bitterroot Valley and Missoula. * WHEN...From 6 PM this evening to 11 AM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 11:00AM MST by NWS Missoula MT

* WHAT...Snow expected. Likelihood of moderate impacts from 3 to 6 inches of snow is greater than 90 percent, and up to a 50 percent chance of isolated major impacts from 6 to 10 inches or more of snow. Winds gusting as high as 40 mph. * WHERE...Highway 200 Bonner to Greenough, I-90 East Missoula to Bearmouth, and Highway 83 Seeley Lake to Condon. * WHEN...From 6 PM this evening to 11 AM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving. Closures and disruptions to infrastructure may occur. For MAJOR impacts from snow, expect considerable disruptions to normal activities.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 5:00PM MST by NWS Missoula MT

* WHAT...Snow expected above 4000 feet. Likelihood of moderate impacts from 3 to 6 inches of snow is greater than 90 percent, and up to a 50 percent chance of isolated major impacts from 6 to 10 inches or more of snow. Winds gusting as high as 45 mph. * WHERE...Highway 37 Eureka to Libby, Highway 93 Eureka to Whitefish, Highway 2 Kalispell to Libby, and Highway 56 Bull Lake Road. * WHEN...From 2 PM this afternoon to 5 PM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving. These conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches.

Winter Storm Warning issued November 4 at 10:25AM MST until November 5 at 5:00PM MST by NWS Missoula MT

* WHAT...Heavy snow expected above 4000 feet. Likelihood of major impacts from 6 to 10 inches or more of snow is 100 percent, and 10 to 18 inches of snow is 40 percent. Winds gusting as high as 45 mph. * WHERE...Evaro Hill. * WHEN...From 2 PM this afternoon to 5 PM MST Tuesday. * IMPACTS...For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. The hazardous conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow bands will have the potential for brief moderate to heavy snow, leading to low visibility and icy conditions at all elevations.

Winter Weather Advisory issued November 4 at 10:25AM MST until November 5 at 5:00PM MST by NWS Missoula MT

* WHAT...Snow expected. Likelihood of moderate impacts from 3 to 6 inches of snow is greater than 90 percent, and up to a 50 percent chance of isolated major impacts from 6 to 10 inches or more of snow. Winds gusting as high as 45 mph. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...From 2 PM this afternoon to 5 PM MST Tuesday. * IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving. These conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches.

Winter Storm Warning issued November 4 at 10:25AM MST until November 5 at 11:00PM MST by NWS Missoula MT

* WHAT...Heavy snow expected above 4000 feet. Likelihood of major impacts from 6 to 10 inches or more of snow is 100 percent, and 10 to 18 inches of snow is 70 percent. Winds gusting as high as 45 mph. * WHERE...Essex to Marias Pass. * WHEN...From 5 PM this afternoon to 11 PM MST Tuesday. * IMPACTS...For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. The hazardous conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches.