663 WWUS45 KTFX 152020 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 220 PM MDT Wed Apr 15 2026 MTZ330-161215- /O.UPG.KTFX.WS.A.0005.260416T0000Z-260417T0600Z/ /O.NEW.KTFX.WS.W.0005.260416T0000Z-260417T0600Z/ Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Big Sky, Raynolds Pass, Targhee Pass, and West Yellowstone 220 PM MDT Wed Apr 15 2026 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches at lower elevations and mountain passes, with 10 to 15 inches in the mountains. Winds gusting as high as 50 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM this evening to midnight MDT Thursday Night. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. 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. && $$ MTZ326-161215- /O.UPG.KTFX.WS.A.0005.260416T0600Z-260417T0000Z/ /O.EXB.KTFX.WW.Y.0021.260416T0600Z-260417T0000Z/ Gallatin Valley- Including the following locations: Gallatin Gateway and Bozeman 220 PM MDT Wed Apr 15 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT THURSDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 6 inches, highest on the south and east portions of the Bozeman valley. * WHERE...Gallatin Valley. * WHEN...From midnight tonight to 6 PM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult, especially Thursday morning. The hazardous conditions could impact the Thursday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ MTZ325-161215- /O.EXB.KTFX.WW.Y.0021.260416T0600Z-260417T0000Z/ Madison River Valley- Including the following locations: McAllister, Ennis, Cameron, Jeffers, and Norris 220 PM MDT Wed Apr 15 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT THURSDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Madison River Valley. * WHEN...From midnight tonight to 6 PM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult, especially Thursday morning. The hazardous conditions could impact the Thursday morning and evening commutes. 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. 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. && $$ MTZ301-161215- /O.CON.KTFX.WW.Y.0021.000000T0000Z-260416T1800Z/ East Glacier Park Region- Including the following locations: Logan Pass, Babb, Kiowa, Marias Pass, Saint Mary, and East Glacier Park 220 PM MDT Wed Apr 15 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT THURSDAY... * WHAT...Snow. Additional snow accumulations of 2 to 5 inches below 6,000 ft and 6 to 10 inches above 6,000 feet. Winds gusting as high as 45 mph. * WHERE...East Glacier Park Region Zone. * WHEN...Until noon MDT Thursday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. * ADDITIONAL DETAILS...Higher snow levels this afternoon will keep snow impacts above pass level. A cold front will help lower snow levels this evening, bringing minor snow accumulations at and below pass level. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ MTZ307-317-320-161215- /O.CON.KTFX.WW.Y.0021.260416T0000Z-260416T1800Z/ Southern Rocky Mountain Front-Little Belt and Highwood Mountains- Big Belt, Bridger and Castle Mountains- Including the following locations: Maudlow, Kings Hill Pass, Monarch, Rogers Pass, Bozeman Pass, Trident, Neihart, Deep Creek Pass, and Battle Ridge Pass 220 PM MDT Wed Apr 15 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT THURSDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 6 inches. Winds gusting as high as 35 mph. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Southern Rocky Mountain Front. * WHEN...From 6 PM this evening to noon MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. 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. 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. && $$ MTZ327-161200- /O.CON.KTFX.WW.Y.0021.260416T0000Z-260416T1200Z/ Northwest Beaverhead County- Including the following locations: Dewey, Wisdom, Big Hole Pass, Wise River, and Chief Joseph Pass 220 PM MDT Wed Apr 15 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MDT THURSDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches near Big hole and Chief Joseph Passes. Winds gusting as high as 40 mph. * WHERE...Northwest Beaverhead County. * WHEN...From 6 PM this evening to 6 AM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ Wilson  050 WWUS46 KSEW 152049 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 149 PM PDT Wed Apr 15 2026 WAZ302>304-160600- /O.CON.KSEW.WS.W.0004.000000T0000Z-260416T0600Z/ Cascades of Snohomish and Northern King Counties-Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Crystal Mountain, Mount Rainier, Snoqualmie Pass, Longmire, Stevens Pass, Ashford, White Pass, SR18 at Tiger Mountain Summit, Greenwater, and Paradise 149 PM PDT Wed Apr 15 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Heavy snow at times. Additional snow accumulations up to 5 inches. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Snow showers will continue into tonight. Brief periods of higher snow rates will be possible in heavier showers, as well as in the vicinity of the Puget Sound Convergence Zone across Snohomish and King Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. && $$ JD