Alert archive / Montana / 2026
Weather alerts in Montana, April 2026
151 weather alerts in April 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in April 2026. Tap one for its archive.
- Alerts
- 151
- Warnings
- 33
- Watches
- 13
- Advisories
- 28
- Busiest day
- April 23, 202620 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 10:48 PM MDT | Winter Storm Warning | TFX | Beaverhead, Broadwater, Cascade, Chouteau, Gallatin, Judith Basin and 3 more | 60 hr |
| Mar 31, 10:48 PM MDT | Winter Weather Advisory | TFX | Beaverhead, Broadwater, Cascade, Fergus, Gallatin, Glacier and 7 more | 60 hr |
| Apr 1, 2:10 AM MDT | Winter Storm Watch | GGW | Dawson, Prairie, Wibaux | 24 hr |
| Apr 1, 11:02 AM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 2 more | 47 hr |
| Apr 1, 1:45 PM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Fallon, Park, Powder River and 4 more | 56 hr |
| Apr 1, 1:45 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Custer, Golden Valley, Park, Rosebud, Treasure and 2 more | 51 hr |
| Apr 1, 5:10 PM MDT | Special Weather Statement | MSO | Missoula | 35 min |
| Apr 2, 2:05 AM MDT | Winter Storm Warning | GGW | Wibaux | 38 hr |
| Apr 2, 2:05 AM MDT | Winter Weather Advisory | GGW | Daniels, Dawson, Garfield, McCone, Phillips, Prairie and 4 more | 38 hr |
| Apr 2, 1:38 PM MDT | Special Weather Statement | BYZ | Wheatland | 37 min |
| Apr 2, 2:25 PM MDT | Special Weather Statement | BYZ | Carbon | 35 min |
| Apr 2, 2:59 PM MDT | Special Weather Statement | BYZ | Carbon | 31 min |
| Apr 2, 3:25 PM MDT | Special Weather Statement | BYZ | Carbon | 35 min |
| Apr 2, 3:52 PM MDT | Special Weather Statement | BYZ | Carbon | 23 min |
| Apr 2, 4:00 PM MDT | Special Weather Statement | BYZ | Carbon | 30 min |
| Apr 2, 6:31 PM MDT | Special Weather Statement | BYZ | Stillwater, Sweet Grass | 59 min |
| Apr 3, 12:22 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 33 hr |
| Apr 4, 12:42 PM MDT | High Wind Watch | TFX | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 12 more | 48 hr |
| Apr 5, 11:44 AM MDT | High Wind Watch | BYZ | Golden Valley, Sweet Grass, Wheatland | 24 hr |
| Apr 5, 12:15 PM MDT | High Wind Watch | GGW | Phillips | 24 hr |
| Apr 5, 12:15 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 37 hr |
| Apr 5, 11:56 PM MDT | High Wind Warning | TFX | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 12 more | 59 hr |
| Apr 6, 10:40 AM MDT | Wind Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 34 hr |
| Apr 6, 11:47 AM MDT | High Wind Warning | GGW | Phillips | 48 hr |
| Apr 6, 12:13 PM MDT | High Wind Warning | BYZ | Golden Valley, Park, Sweet Grass, Wheatland | 35 hr |
| Apr 6, 12:13 PM MDT | Wind Advisory | BYZ | Park, Stillwater, Sweet Grass | 35 hr |
| Apr 7, 2:35 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 39 hr |
| Apr 7, 2:44 PM MDT | Special Weather Statement | TFX | Liberty, Teton, Toole | 46 min |
| Apr 7, 6:31 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland, Roosevelt | 59 min |
| Apr 7, 7:12 PM MDT | Special Weather Statement | BYZ | Custer | 63 min |
| Apr 7, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland, Roosevelt | 32 min |
| Apr 7, 8:14 PM MDT | Special Weather Statement | BYZ | Fallon | 61 min |
| Apr 9, 10:45 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 14 hr |
| Apr 11, 1:26 PM MDT | Special Weather Statement | TFX | Broadwater | 49 min |
| Apr 11, 2:28 PM MDT | Special Weather Statement | TFX | Cascade | 47 min |
| Apr 11, 3:53 PM MDT | Special Weather Statement | BYZ | Yellowstone | 22 min |
| Apr 11, 3:54 PM MDT | Special Weather Statement | MSO | Lake | 51 min |
| Apr 11, 3:58 PM MDT | Special Weather Statement | TFX | 47 min | |
| Apr 11, 4:08 PM MDT | Special Weather Statement | TFX | Judith Basin | 52 min |
| Apr 11, 4:21 PM MDT | Special Weather Statement | BYZ | Yellowstone | 24 min |
| Apr 11, 4:43 PM MDT | Special Weather Statement | TFX | 47 min | |
| Apr 11, 4:47 PM MDT | Special Weather Statement | BYZ | Yellowstone | 43 min |
| Apr 11, 4:50 PM MDT | Special Weather Statement | TFX | Fergus | 40 min |
| Apr 11, 5:27 PM MDT | Special Weather Statement | TFX | Blaine | 48 min |
| Apr 11, 5:40 PM MDT | Special Weather Statement | BYZ | Custer | 35 min |
| Apr 11, 5:48 PM MDT | Special Weather Statement | GGW | Phillips | 57 min |
| Apr 11, 6:07 PM MDT | Special Weather Statement | MSO | Powell | 38 min |
| Apr 11, 6:21 PM MDT | Special Weather Statement | GGW | Petroleum | 54 min |
| Apr 11, 6:33 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips, Valley | 57 min |
| Apr 11, 7:25 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Phillips, Valley | 65 min |
| Apr 11, 8:24 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 66 min |
| Apr 11, 8:42 PM MDT | Special Weather Statement | TFX | Cascade | 48 min |
| Apr 11, 9:09 PM MDT | Special Weather Statement | BYZ | Fallon | 36 min |
| Apr 11, 9:09 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Dawson, McCone, Richland, Roosevelt, Valley | 66 min |
| Apr 11, 9:17 PM MDT | Special Weather Statement | TFX | Madison | 58 min |
| Apr 11, 9:51 PM MDT | Special Weather Statement | TFX | Judith Basin | 39 min |
| Apr 12, 4:28 PM MDT | Special Weather Statement | TFX | Madison | 47 min |
| Apr 12, 4:39 PM MDT | Special Weather Statement | MSO | Deer Lodge | 36 min |
| Apr 12, 5:12 PM MDT | Special Weather Statement | MSO | Powell | 48 min |
| Apr 13, 1:03 PM MDT | Special Weather Statement | BYZ | Powder River | 27 min |
| Apr 13, 1:13 PM MDT | Special Weather Statement | BYZ | Carter | 32 min |
| Apr 13, 1:18 PM MDT | Mesoscale Discussion | SPC | Carter | 87 min |
| Apr 13, 1:47 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 25 min |
| Apr 13, 1:50 PM MDT | Special Weather Statement | BYZ | Carter | 55 min |
| Apr 13, 1:52 PM MDT | Special Weather Statement | BYZ | Carter | 68 min |
| Apr 13, 2:04 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 4 min |
| Apr 13, 2:06 PM MDT | Special Weather Statement | BYZ | Custer | 54 min |
| Apr 13, 2:11 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 34 min |
| Apr 13, 2:42 PM MDT | Special Weather Statement | BYZ | Carter | 48 min |
| Apr 13, 2:51 PM MDT | Special Weather Statement | BYZ | Prairie | 24 min |
| Apr 13, 10:51 PM MDT | High Wind Watch | TFX | Beaverhead, Madison | 24 hr |
| Apr 13, 10:56 PM MDT | Winter Storm Watch | BYZ | Carbon, Park, Stillwater, Sweet Grass | 24 hr |
| Apr 14, 12:10 AM MDT | Winter Storm Watch | TFX | Beaverhead, Gallatin, Madison | 38 hr |
| Apr 14, 11:53 AM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 45 hr |
| Apr 14, 1:17 PM MDT | Winter Weather Advisory | TFX | Beaverhead, Broadwater, Cascade, Chouteau, Gallatin, Glacier and 6 more | 50 hr |
| Apr 14, 11:11 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 48 hr |
| Apr 14, 11:16 PM MDT | High Wind Warning | TFX | Beaverhead, Madison | 22 hr |
| Apr 15, 2:28 AM MDT | Wind Advisory | BYZ | Park, Stillwater, Sweet Grass | 22 hr |
| Apr 15, 4:18 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 41 hr |
| Apr 15, 1:00 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Park, Stillwater, Sweet Grass | 37 hr |
| Apr 15, 2:20 PM MDT | Winter Storm Warning | TFX | Beaverhead, Gallatin, Madison | 31 hr |
| Apr 15, 4:58 PM MDT | Special Weather Statement | MSO | Missoula | 32 min |
| Apr 15, 6:44 PM MDT | Special Weather Statement | TFX | Beaverhead | 61 min |
| Apr 15, 7:39 PM MDT | Special Weather Statement | TFX | Jefferson, Lewis and Clark | 51 min |
| Apr 15, 7:45 PM MDT | Special Weather Statement | TFX | Beaverhead | 60 min |
| Apr 15, 9:13 PM MDT | Snow Squall Warning | MSO | Silver Bow | 32 min |
| Apr 16, 7:42 AM MDT | Special Weather Statement | MSO | Lincoln | 93 min |
| Apr 16, 9:56 AM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 8 hr |
| Apr 16, 1:08 PM MDT | Special Weather Statement | MSO | Flathead | 67 min |
| Apr 17, 8:51 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 8 hr |
| Apr 17, 3:01 PM MDT | Special Weather Statement | MSO | Flathead | 44 min |
| Apr 17, 4:23 PM MDT | Special Weather Statement | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Stillwater, Sweet Grass and 3 more | 112 min |
| Apr 20, 12:51 PM MDT | Winter Storm Watch | TFX | Beaverhead, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 4 more | 49 hr |
| Apr 21, 1:15 PM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 9 hr |
| Apr 21, 1:46 PM MDT | High Wind Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 23 hr |
| Apr 21, 1:50 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 68 hr |
| Apr 21, 2:20 PM MDT | Winter Storm Watch | TFX | Gallatin | 24 hr |
| Apr 21, 2:20 PM MDT | Winter Weather Advisory | TFX | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 12 more | 4 days |
| Apr 21, 2:26 PM MDT | High Wind Watch | TFX | Blaine, Chouteau, Fergus, Hill, Liberty, Toole | 24 hr |
| Apr 21, 2:26 PM MDT | High Wind Warning | TFX | Beaverhead, Gallatin, Jefferson, Madison | 28 hr |
| Apr 21, 2:55 PM MDT | Winter Storm Watch | BYZ | Carbon, Park, Stillwater, Sweet Grass | 9 hr |
| Apr 21, 9:49 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 23 hr |
| Apr 21, 11:28 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 62 hr |
| Apr 21, 11:56 PM MDT | Winter Storm Warning | TFX | Beaverhead, Blaine, Cascade, Chouteau, Fergus, Gallatin and 4 more | 3 days |
| Apr 22, 10:16 AM MDT | High Wind Warning | BYZ | Carbon | 14 hr |
| Apr 22, 10:16 AM MDT | Wind Advisory | BYZ | Park, Stillwater, Sweet Grass | 14 hr |
| Apr 22, 10:41 AM MDT | Red Flag Warning | BYZ | Big Horn, Carter, Custer, Fallon, Powder River, Rosebud and 1 more | 10 hr |
| Apr 22, 12:39 PM MDT | High Wind Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 31 hr |
| Apr 22, 12:47 PM MDT | Winter Weather Advisory | GGW | Valley | 15 hr |
| Apr 22, 1:10 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Park, Stillwater, Sweet Grass | 50 hr |
| Apr 22, 1:25 PM MDT | Special Weather Statement | TFX | Beaverhead, Madison | 50 min |
| Apr 22, 2:10 PM MDT | High Wind Warning | TFX | Blaine, Chouteau, Fergus, Hill, Liberty, Toole | 28 hr |
| Apr 22, 2:51 PM MDT | Mesoscale Discussion | SPC | Custer, Daniels, Dawson, Fallon, Garfield, McCone and 8 more | 84 min |
| Apr 22, 2:57 PM MDT | Special Weather Statement | BYZ | Rosebud | 48 min |
| Apr 22, 3:20 PM MDT | Special Weather Statement | BYZ | Treasure | 40 min |
| Apr 22, 3:29 PM MDT | Special Weather Statement | GGW | Petroleum | 61 min |
| Apr 22, 3:53 PM MDT | Special Weather Statement | GGW | Garfield | 52 min |
| Apr 22, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Prairie, Valley | 61 min |
| Apr 22, 5:43 PM MDT | Special Weather Statement | GGW | McCone | 62 min |
| Apr 22, 5:45 PM MDT | Special Weather Statement | BYZ | Yellowstone | 45 min |
| Apr 22, 6:18 PM MDT | Special Weather Statement | TFX | Cascade | 42 min |
| Apr 22, 6:33 PM MDT | Special Weather Statement | BYZ | Big Horn | 42 min |
| Apr 22, 6:34 PM MDT | Special Weather Statement | GGW | Daniels, Richland, Roosevelt | 56 min |
| Apr 22, 6:47 PM MDT | Special Weather Statement | TFX | Blaine | 88 min |
| Apr 22, 7:07 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, McCone, Richland, Roosevelt, Sheridan | 53 min |
| Apr 22, 7:38 PM MDT | Special Weather Statement | GGW | Daniels, Richland, Roosevelt, Sheridan, Valley | 67 min |
| Apr 22, 7:53 PM MDT | Special Weather Statement | BYZ | Rosebud | 52 min |
| Apr 22, 7:53 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, McCone, Richland, Roosevelt, Sheridan | 67 min |
| Apr 22, 8:09 PM MDT | Areal Flood Advisory | TFX | Lewis and Clark | 3 hr |
| Apr 22, 8:49 PM MDT | Special Weather Statement | GGW | Daniels, Richland, Roosevelt, Sheridan, Valley | 56 min |
| Apr 22, 8:53 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 52 min |
| Apr 22, 9:00 PM MDT | Special Weather Statement | BYZ | Prairie | 45 min |
| Apr 23, 1:15 AM MDT | Special Weather Statement | BYZ | Treasure, Yellowstone | 60 min |
| Apr 23, 3:34 AM MDT | Blizzard Warning | GGW | McCone, Valley | 8 hr |
| Apr 23, 3:34 AM MDT | Winter Weather Advisory | GGW | Daniels, Garfield, McCone, Phillips, Roosevelt, Valley | 8 hr |
| Apr 23, 1:20 PM MDT | Winter Weather Advisory | GGW | Daniels, Dawson, Garfield, McCone, Phillips, Prairie and 4 more | 37 hr |
| Apr 23, 1:37 PM MDT | Special Weather Statement | BYZ | Sweet Grass | 53 min |
| Apr 23, 2:57 PM MDT | Special Weather Statement | BYZ | Stillwater | 48 min |
| Apr 23, 5:36 PM MDT | Special Weather Statement | MSO | Lincoln | 39 min |
| Apr 23, 5:49 PM MDT | Special Weather Statement | MSO | Ravalli | 41 min |
| Apr 23, 7:21 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 47 hr |
| Apr 23, 8:08 PM MDT | Special Weather Statement | MSO | Sanders | 52 min |
| Apr 23, 8:16 PM MDT | Special Weather Statement | MSO | Mineral | 44 min |
| Apr 24, 12:43 PM MDT | Freeze Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 43 hr |
| Apr 24, 10:16 PM MDT | Special Weather Statement | TFX | Cascade, Judith Basin, Lewis and Clark | 74 min |
| Apr 25, 4:46 AM MDT | Special Weather Statement | TFX | Cascade | 89 min |
| Apr 25, 6:45 AM MDT | Special Weather Statement | TFX | Cascade, Judith Basin, Lewis and Clark | 60 min |
| Apr 25, 1:26 PM MDT | Winter Weather Advisory | TFX | Glacier, Pondera | 23 hr |
| Apr 25, 8:00 PM MDT | Special Weather Statement | TFX | Pondera | 60 min |
| Apr 25, 10:06 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Powder River, Rosebud, Treasure | 38 hr |
| Apr 26, 3:25 AM MDT | Special Weather Statement | TFX | Chouteau | 65 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 13 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 75 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 16 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| High Wind Warning | 8 |
| High Wind Watch | 6 |
| Lake Wind Advisory | 7 |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McCone County24
- Valley County24
- Garfield County20
- Phillips County19
- Roosevelt County17
- Beaverhead County16
- Madison County16
- Carbon County15
- Sweet Grass County15
- Daniels County15
- Richland County15
- Cascade County14
- Petroleum County14
- Stillwater County13
- Gallatin County12
- Judith Basin County12
- Park County12
- Sheridan County12
- Lewis and Clark County11
- Dawson County11
- Prairie County11
- Chouteau County10
- Carter County10
- Fergus County9
- Broadwater County8
- Meagher County8
- Flathead County8
- Big Horn County8
- Wheatland County8
- Blaine County8
- Pondera County7
- Wibaux County7
- Lake County7
- Missoula County7
- Powder River County7
- Rosebud County7
- Treasure County7
- Yellowstone County7
- Glacier County6
- Jefferson County6
Nearby
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.