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Home Blizzard Warning 0001 Issued by the Great Falls Forecast Office
Action: New Issued At: 2026-03-11 13:31:55 080 WWUS45 KTFX 111831 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 1231 PM MDT Wed Mar 11 2026 MTZ301-307-121215- /O.NEW.KTFX.BZ.W.0001.260312T0000Z-260312T2100Z/ /O.EXT.KTFX.WS.W.0003.260312T2100Z-260315T0000Z/ /O.CON.KTFX.WW.Y.0014.000000T0000Z-260312T0000Z/ East Glacier Park Region-Southern Rocky Mountain Front- Including the following locations: Marias Pass, Kiowa, Rogers Pass, Babb, Saint Mary, East Glacier Park, and Logan Pass 1231 PM MDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... ...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MDT THURSDAY... ...WINTER STORM WARNING NOW IN EFFECT FROM 3 PM THURSDAY TO 6 PM MDT SATURDAY... * WHAT...Snow through this afternoon with additional accumulations up to two inches. For the Blizzard Warning, blizzard conditions expected to develop tonight as snowfall rates and wind speeds increase with poorest visibility in periods of moderate to heavy snowfall and strong winds Thursday morning. Wind speeds decrease late Thursday through Friday but periods of light to moderate snowfall will persist through Saturday. Total snow accumulations between 1 and 3 feet are expected by Saturday. Winds gust as high as 70 mph late tonight through Thursday morning. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...For the Winter Weather Advisory, until 6 PM MDT this evening. For the Blizzard Warning, from 6 PM this evening to 3 PM MDT Thursday. For the Winter Storm Warning, from 3 PM Thursday to 6 PM MDT Saturday. * IMPACTS...Travel could be very difficult or impossible over Marias pass and Rogers pass late tonight through Thursday morning. * ADDITIONAL DETAILS...Whiteout conditions are likely and may make travel treacherous and potentially life-threatening, especially from 12 AM Thursday through 8 AM Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remember, a Blizzard Warning means that there is at least an 80% chance of seeing blizzard conditions for at least 3 hours during the watch period. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. && $$ MTZ327-121215- /O.UPG.KTFX.WW.Y.0014.260312T0000Z-260313T1800Z/ /O.EXB.KTFX.WS.W.0003.260312T0000Z-260313T1800Z/ Northwest Beaverhead County- Including the following locations: Chief Joseph Pass, Big Hole Pass, Wisdom, Dewey, and Wise River 1231 PM MDT Wed Mar 11 2026 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT FRIDAY... * WHAT...Total snow accumulations between 7 and 14 inches near Chief Joseph Pass and 4 to 7 inches near Big Hole Pass. Snow accumulations between 1 and 5 inches elsewhere. Winds gusting over 60 mph at times on Thursday. * WHERE...Northwest Beaverhead County. * WHEN...From 6 PM this evening to noon MDT Friday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. Remember, a Winter Storm Warning means that there is at least an 80% chance of impactful winter weather conditions during the warning period. && $$ MTZ315-121215- /O.EXB.KTFX.WS.W.0003.260312T0000Z-260313T1800Z/ Upper Blackfoot and MacDonald Pass- Including the following locations: Flesher Pass, Lincoln, MacDonald Pass, and Marysville 1231 PM MDT Wed Mar 11 2026 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT FRIDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations between 3 and 6 inches in the Upper Blackfoot Valley and Lincoln area with 6 to 12 inches over Flesher pass and Macdonald Pass. Winds gusting as high as 65 mph may create significant visibility reductions in blowing snow Thursday. * WHERE...Upper Blackfoot and MacDonald Pass. * WHEN...From 6 PM this evening to noon MDT Friday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. Remember, a Winter Storm Warning means that there is at least an 80% chance of impactful winter weather conditions during the warning period. && $$ MTZ302-308-121215- /O.NEW.KTFX.WW.Y.0015.260312T0900Z-260312T2100Z/ /O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/ Northern High Plains-Southern High Plains- Including the following locations: Browning, Pendroy, Dupuyer, Choteau, Bynum, and Heart Butte 1231 PM MDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 3 PM MDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON... * WHAT...For the Winter Weather Advisory, snow and blowing snow expected. Total snow accumulations up to two inches. Winds gusting as high as 75 mph will create reduced visibility. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 9 and 19 inches possible. Winds could gust as high as 55 mph. * WHERE...The foothills and plains adjacent to the Rocky Mountain Front. * WHEN...For the Winter Weather Advisory, from 3 AM to 3 PM MDT Thursday. For the Winter Storm Watch, from Thursday evening through Saturday afternoon. * IMPACTS...Travel could be very difficult to dangerous with falling and blowing snow significantly reducing visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. Monitor the latest forecasts for updates on this situation. && $$ MTZ303-304-309-310-312-121215- /O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/ Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole and Liberty-Eastern Pondera and Eastern Teton-Western and Central Chouteau County-Cascade County below 5000ft- Including the following locations: Conrad, Devon, Shelby, Galata, Joplin, Brady, Floweree, Carter, Ledger, Lothair, Great Falls, Santa Rita, Fort Benton, Ethridge, Whitlash, Cut Bank, and Chester 1231 PM MDT Wed Mar 11 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. * WHERE...The Interstate 15 Corridor north of Power, Eastern Toole and Liberty Counties, Western and Central Chouteau County, and Cascade County below 5000ft. * WHEN...From Thursday evening through Saturday afternoon. * IMPACTS...Travel could be very difficult with falling and blowing snow significantly reducing visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ MTZ311-313-314-317-318-121215- /O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/ Bears Paw Mountains and Southern Blaine-Judith Basin County and Judith Gap-Fergus County below 4500ft-Little Belt and Highwood Mountains-Snowy and Judith Mountains- Including the following locations: Hilger, Kings Hill Pass, Geyser, Stanford, Lewistown, Monarch, Neihart, Rocky Boy, Moccasin, Benchland, Raynesford, Windham, and Hobson 1231 PM MDT Wed Mar 11 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy snow possible. Total snow accumulations between 8 and 18 inches possible. * WHERE...Bears Paw, Highwood, Little Belt, and Snowy Mountains, Judith Basin County and Judith Gap, and Fergus County below 4500ft. * WHEN...From Thursday evening through Saturday afternoon. * IMPACTS...Travel could be very difficult to dangerous with falling and blowing snow significantly reducing visibility at times. Those in the backcountry should ensure they are prepared for dangerous conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ Hoenisch |
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