Alert archive / Montana / Winter Storm Warnings

Winter Storm Warnings in Montana, 2026

23 winter storm warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.

Winter Storm Warnings by county

Each county as a circle sized by its count in 2026. Tap one for its archive.

Winter Storm Warnings
23
Busiest month
March8 winter storm warnings
Busiest day
March 5, 20262 winter storm warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jan 5, 1:03 PM MSTWinter Storm WarningMSOMineral, Missoula, Sanders46 hr
Feb 8, 9:12 PM MSTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass, Wheatland20 hr
Feb 16, 11:54 PM MSTWinter Storm WarningTFXBlaine19 hr
Feb 23, 12:27 AM MSTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass, Wheatland59 hr
Feb 26, 9:52 AM MSTWinter Storm WarningGGWPhillips30 hr
Mar 5, 12:09 AM MSTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass, Wheatland35 hr
Mar 5, 12:24 AM MSTWinter Storm WarningTFXBeaverhead, Gallatin, Madison15 hr
Mar 10, 11:42 AM MDTWinter Storm WarningMSODeer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more4 days
Mar 10, 2:09 PM MDTWinter Storm WarningTFXBeaverhead, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 7 more4 days
Mar 11, 9:21 AM MDTWinter Storm WarningMSOFlathead, Lake3 days
Mar 11, 1:47 PM MDTWinter Storm WarningBYZBig Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 9 more4 days
Mar 12, 1:35 AM MDTWinter Storm WarningGGWDawson, Garfield, McCone, Petroleum, Phillips, Prairie and 1 more67 hr
Mar 13, 2:11 PM MDTWinter Storm WarningBYZCarbon, Park, Powder River, Rosebud, Stillwater, Sweet Grass and 1 more39 hr
Mar 31, 10:48 PM MDTWinter Storm WarningTFXBeaverhead, Broadwater, Cascade, Chouteau, Gallatin, Judith Basin and 3 more60 hr
Apr 1, 1:45 PM MDTWinter Storm WarningBYZBig Horn, Carbon, Carter, Fallon, Park, Powder River and 4 more56 hr
Apr 2, 2:05 AM MDTWinter Storm WarningGGWWibaux38 hr
Apr 14, 11:11 PM MDTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass, Wheatland48 hr
Apr 15, 2:20 PM MDTWinter Storm WarningTFXBeaverhead, Gallatin, Madison31 hr
Apr 21, 11:28 PM MDTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass, Wheatland62 hr
Apr 21, 11:56 PM MDTWinter Storm WarningTFXBeaverhead, Blaine, Cascade, Chouteau, Fergus, Gallatin and 4 more3 days
May 20, 12:55 PM MDTWinter Storm WarningBYZCarbon, Park, Stillwater, Sweet Grass26 hr
Jun 26, 11:04 AM MDTWinter Storm WarningMSODeer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow70 hr
Jun 27, 12:44 PM MDTWinter Storm WarningTFXBeaverhead47 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

8 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 5, 20262winter storm warnings
  2. March 10, 20262winter storm warnings
  3. March 11, 20262winter storm warnings
  4. April 1, 20262winter storm warnings
  5. April 15, 20262winter storm warnings
  6. April 22, 20262winter storm warnings
  7. January 5, 20261winter storm warnings
  8. February 9, 20261winter storm warnings
  9. February 17, 20261winter storm warnings
  10. February 23, 20261winter storm warnings
  11. February 26, 20261winter storm warnings
  12. March 12, 20261winter storm warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.