Alert archive / Montana / 2021
Weather alerts in Montana, April 2021
55 weather alerts in April 2021, 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 2021. Tap one for its archive.
- Alerts
- 55
- Warnings
- 7
- Watches
- 5
- Advisories
- 33
- Busiest day
- April 29, 20216 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 |
|---|---|---|---|---|
| Apr 1, 2:53 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 17 hr |
| Apr 1, 11:52 AM MDT | Red Flag Warning | MSO | Beaverhead, Jefferson, Madison, Silver Bow | 9 hr |
| Apr 4, 1:17 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 29 hr |
| Apr 4, 1:25 PM MDT | Winter Weather Advisory | TFX | 29 hr | |
| Apr 4, 1:43 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Golden Valley, Stillwater, Sweet Grass, Wheatland | 49 hr |
| Apr 7, 9:10 AM MDT | Red Flag Warning | GGW | Phillips, Valley | 10 hr |
| Apr 7, 12:10 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 3 more | 22 hr |
| Apr 7, 1:36 PM MDT | Fire Weather Watch | GGW | Dawson, McCone, Prairie, Richland, Wibaux | 13 hr |
| Apr 7, 1:37 PM MDT | Winter Weather Advisory | TFX | 20 hr | |
| Apr 7, 2:32 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 39 hr |
| Apr 8, 2:29 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Carter | 28 hr |
| Apr 8, 3:01 AM MDT | Red Flag Warning | GGW | Dawson, McCone, Prairie, Richland, Wibaux | 16 hr |
| Apr 8, 5:19 PM MDT | Special Weather Statement | TFX | Toole | 41 min |
| Apr 8, 6:18 PM MDT | Special Weather Statement | TFX | Liberty | 42 min |
| Apr 9, 11:53 AM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 27 hr |
| Apr 9, 11:53 AM MDT | Wind Advisory | MSO | Deer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more | 36 hr |
| Apr 9, 4:44 PM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 19 hr |
| Apr 9, 8:09 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 3 days |
| Apr 10, 9:08 PM MDT | Special Weather Statement | MSO | Powell | 37 min |
| Apr 11, 1:25 PM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 56 hr |
| Apr 11, 8:34 PM MDT | Winter Weather Advisory | GGW | Daniels, Dawson, Garfield, McCone, Phillips, Richland and 4 more | 57 hr |
| Apr 13, 3:15 AM MDT | Special Weather Statement | BYZ | Carbon | 2 hr |
| Apr 13, 5:47 AM MDT | Special Weather Statement | BYZ | Carbon | 88 min |
| Apr 13, 11:11 AM MDT | Special Weather Statement | TFX | Blaine | 2 hr |
| Apr 13, 1:47 PM MDT | Winter Weather Advisory | TFX | 19 hr | |
| Apr 14, 2:06 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Stillwater, Sweet Grass | 58 hr |
| Apr 17, 2:09 AM MDT | Winter Storm Watch | BYZ | Big Horn, Carbon, Park, Stillwater, Sweet Grass, Wheatland | 13 hr |
| Apr 17, 4:01 AM MDT | Winter Weather Advisory | TFX | 56 hr | |
| Apr 17, 11:17 AM MDT | Wind Advisory | MSO | Flathead, Lake, Sanders | 37 hr |
| Apr 17, 3:31 PM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Park, Stillwater, Sweet Grass, Wheatland | 45 hr |
| Apr 17, 3:31 PM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Carter, Golden Valley, Musselshell, Park and 6 more | 42 hr |
| Apr 18, 3:27 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 18 hr |
| Apr 18, 3:28 AM MDT | Winter Weather Advisory | GGW | Petroleum, Phillips | 24 hr |
| Apr 18, 11:40 AM MDT | Winter Weather Advisory | MSO | Deer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more | 23 hr |
| Apr 19, 9:27 AM MDT | Special Weather Statement | TFX | Chouteau | 33 min |
| Apr 19, 12:01 PM MDT | Special Weather Statement | TFX | Cascade, Chouteau, Judith Basin | 44 min |
| Apr 21, 12:54 PM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 25 hr |
| Apr 21, 12:54 PM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 29 hr |
| Apr 21, 2:18 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 32 hr |
| Apr 21, 2:35 PM MDT | Winter Weather Advisory | TFX | 45 hr | |
| Apr 22, 2:19 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Park, Stillwater, Sweet Grass, Wheatland and 1 more | 32 hr |
| Apr 23, 3:23 AM MDT | Winter Weather Advisory | MSO | Deer Lodge, Granite, Powell, Silver Bow | 6 hr |
| Apr 24, 2:54 AM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 27 hr |
| Apr 24, 2:56 AM MDT | Winter Weather Advisory | TFX | 27 hr | |
| Apr 24, 7:14 PM MDT | Special Weather Statement | TFX | Madison | 46 min |
| Apr 25, 1:58 AM MDT | Winter Weather Advisory | TFX | 28 hr | |
| Apr 27, 4:31 AM MDT | Special Weather Statement | BYZ | Fallon, Powder River | 4 hr |
| Apr 28, 8:46 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 11 hr |
| Apr 28, 3:00 PM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 24 hr |
| Apr 29, 1:38 AM MDT | Fire Weather Watch | TFX | Blaine, Hill, Phillips | 12 hr |
| Apr 29, 2:29 AM MDT | Red Flag Warning | BYZ | Carter, Fallon | 43 hr |
| Apr 29, 2:05 PM MDT | Red Flag Warning | TFX | Blaine, Hill, Phillips | 31 hr |
| Apr 29, 2:42 PM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 37 hr |
| Apr 29, 2:42 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 34 hr |
| Apr 29, 2:51 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 51 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Special Weather Statement | 10 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 21 |
| Wind and dust | |
| Lake Wind Advisory | 10 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Phillips County15
- McCone County13
- Valley County12
- Garfield County11
- Petroleum County11
- Lake County10
- Carbon County9
- Flathead County8
- Big Horn County7
- Silver Bow County6
- Powell County6
- Stillwater County6
- Dawson County6
- Richland County6
- Wibaux County6
- Deer Lodge County5
- Granite County5
- Sweet Grass County5
- Wheatland County5
- Sanders County5
- Prairie County5
- Missoula County4
- Daniels County4
- Roosevelt County4
- Sheridan County4
- Park County4
- Ravalli County3
- Carter County3
- Blaine County3
- Madison County2
- Golden Valley County2
- Powder River County2
- Yellowstone County2
- Chouteau County2
- Fallon County2
- Hill County2
- Beaverhead County1
- Jefferson County1
- Mineral County1
- Toole County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.