Dense Fog Advisory
Status
Event Continued Active alertStart Time
Tue 10/13/2026 02:39 AM EDTEnd Time
Tue 10/13/2026 02:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Great Falls, MT ∙ Zurich, MT ∙ Little Browning, MT ∙ McAllister, MT ∙ Belgrade, MT ∙ Carter, MT ∙ Denton, MT ∙ Helena Valley Northwest, MT ∙ Willow Creek, MT ∙ Fife, MTFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 1239 AM MDT Tue Oct 13 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Visibility as low as one quarter of a mile in dense fog. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...Until noon MDT today. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Below freezing temperatures may lead to a glaze of ice on surfaces, most notably on bridges and overpasses. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Technical Header
MTZ303>306-309>314-319-321-323>326-131800- /O.CON.KTFX.FG.Y.0002.000000T0000Z-261013T1800Z/ Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole and Liberty-Hill County-Northern Blaine County-Eastern Pondera and Eastern Teton-Western and Central Chouteau County-Bears Paw Mountains and Southern Blaine-Cascade County below 5000ft-Judith Basin County and Judith Gap-Fergus County below 4500ft-Helena Valley-Meagher County Valleys-Canyon Ferry Area-Missouri Headwaters-Madison River Valley-Gallatin Valley- Including the cities of Havre, Pony, Checkerboard, Brady, Floweree, Cut Bank, Hobson, Stanford, Rocky Boy, Ennis, Winston, Helena, Cameron, Fort Belknap, Raynesford, Harrison, White Sulphur Springs, Moccasin, Toston, Conrad, Chinook, Whitehall, Harlem, Willow Creek, Lewistown, Ringling, Chester, Ledger, Jeffers, Ethridge, Joplin, Benchland, McAllister, Devon, Hilger, Townsend, Three Forks, Galata, Shelby, Hogeland, Norris, Whitlash, Lothair, Bozeman, Geyser, Great Falls, Martinsdale, Santa Rita, Carter, Gallatin Gateway, Windham, Fort Benton, and Zurich 1239 AM MDT Tue Oct 13 2026
