Alert archive / Montana / 2021
Weather alerts in Montana, October 2021
47 weather alerts in October 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 October 2021. Tap one for its archive.
- Alerts
- 47
- Warnings
- 13
- Watches
- 10
- Advisories
- 19
- Busiest day
- October 5, 20214 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 |
|---|---|---|---|---|
| Oct 3, 2:27 AM MDT | Fire Weather Watch | BYZ | Carter, Fallon | 12 hr |
| Oct 3, 2:57 AM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 11 hr |
| Oct 3, 1:27 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 55 hr |
| Oct 4, 9:14 AM MDT | Red Flag Warning | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 35 hr |
| Oct 4, 12:17 PM MDT | Red Flag Warning | MSO | Beaverhead, Jefferson, Madison, Silver Bow | 32 hr |
| Oct 4, 1:14 PM MDT | Fire Weather Watch | BYZ | Carter, Fallon | 24 hr |
| Oct 5, 3:38 AM MDT | Fire Weather Watch | GGW | Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 3 more | 10 hr |
| Oct 5, 8:46 AM MDT | Red Flag Warning | GGW | Phillips, Valley | 11 hr |
| Oct 5, 12:49 PM MDT | Red Flag Warning | BYZ | Carter, Fallon | 32 hr |
| Oct 5, 2:03 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 3 more | 29 hr |
| Oct 6, 3:25 PM MDT | Special Weather Statement | TFX | Beaverhead, Broadwater, Jefferson, Madison | 35 min |
| Oct 8, 12:47 PM MDT | Winter Storm Watch | TFX | 38 hr | |
| Oct 9, 1:08 PM MDT | Winter Storm Watch | BYZ | Big Horn, Carbon, Park, Powder River, Rosebud, Stillwater and 3 more | 38 hr |
| Oct 9, 1:51 PM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 29 hr |
| Oct 9, 1:57 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 63 hr |
| Oct 10, 2:29 AM MDT | Winter Storm Warning | TFX | 58 hr | |
| Oct 10, 2:52 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 27 hr |
| Oct 10, 2:09 PM MDT | Winter Weather Advisory | TFX | 43 hr | |
| Oct 10, 2:47 PM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Park and 4 more | 3 days |
| Oct 11, 3:34 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 7 more | 47 hr |
| Oct 11, 1:11 PM MDT | Winter Weather Advisory | GGW | Prairie | 14 hr |
| Oct 12, 3:24 AM MDT | Winter Storm Warning | GGW | Dawson, McCone, Prairie, Richland, Wibaux | 39 hr |
| Oct 12, 10:22 AM MDT | Winter Weather Advisory | GGW | Daniels, Roosevelt, Sheridan | 32 hr |
| Oct 13, 3:58 AM MDT | Mesoscale Discussion | SPC | Carter, Custer, Dawson, Fallon, Powder River, Prairie and 1 more | 6 hr |
| Oct 14, 3:11 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 15 hr |
| Oct 14, 4:58 AM MDT | Dense Fog Advisory | GGW | McCone, Valley | 4 hr |
| Oct 15, 1:23 PM MDT | Fire Weather Watch | TFX | Cascade, Chouteau, Fergus, Glacier, Judith Basin, Lewis and Clark and 5 more | 25 hr |
| Oct 16, 2:37 PM MDT | Red Flag Warning | TFX | Cascade, Chouteau, Fergus, Glacier, Judith Basin, Lewis and Clark and 5 more | 27 hr |
| Oct 22, 3:00 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 32 hr |
| Oct 24, 2:51 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 38 hr |
| Oct 24, 7:15 AM MDT | Special Weather Statement | BYZ | Custer, Rosebud, Treasure | 2 hr |
| Oct 24, 9:57 AM MDT | Special Weather Statement | BYZ | Custer, Fallon | 63 min |
| Oct 25, 2:14 AM MDT | High Wind Watch | TFX | 37 hr | |
| Oct 25, 6:49 AM MDT | Special Weather Statement | BYZ | Carter | 3 hr |
| Oct 25, 1:31 PM MDT | High Wind Watch | BYZ | Carbon, Golden Valley, Musselshell, Park, Stillwater, Sweet Grass and 2 more | 36 hr |
| Oct 26, 2:37 AM MDT | High Wind Warning | TFX | 39 hr | |
| Oct 26, 10:54 AM MDT | Wind Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 30 hr |
| Oct 26, 10:54 AM MDT | Winter Weather Advisory | MSO | Granite, Missoula, Ravalli | 22 hr |
| Oct 26, 1:19 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 38 hr |
| Oct 27, 1:53 AM MDT | High Wind Warning | BYZ | Golden Valley, Sweet Grass, Wheatland | 18 hr |
| Oct 27, 1:53 AM MDT | Wind Advisory | BYZ | Park, Stillwater, Sweet Grass | 18 hr |
| Oct 27, 2:29 PM MDT | High Wind Watch | TFX | 10 hr | |
| Oct 28, 12:49 AM MDT | High Wind Warning | TFX | 31 hr | |
| Oct 29, 2:50 AM MDT | Wind Advisory | BYZ | Park, Stillwater, Sweet Grass | 19 hr |
| Oct 29, 8:58 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 19 hr |
| Oct 29, 2:38 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 14 hr |
| Oct 30, 11:51 PM MDT | Winter Weather Advisory | BYZ | Carbon, Stillwater, Sweet Grass | 9 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 | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 3 |
| Lake Wind Advisory | 8 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McCone County13
- Valley County13
- Phillips County11
- Garfield County9
- Petroleum County9
- Carter County7
- Fallon County7
- Prairie County7
- Stillwater County7
- Sweet Grass County7
- Dawson County6
- Wibaux County6
- Daniels County5
- Richland County5
- Roosevelt County5
- Sheridan County5
- Carbon County5
- Park County5
- Wheatland County5
- Custer County5
- Powder River County4
- Cascade County3
- Chouteau County3
- Fergus County3
- Glacier County3
- Jefferson County3
- Judith Basin County3
- Lewis and Clark County3
- Liberty County3
- Meagher County3
- Pondera County3
- Powell County3
- Teton County3
- Toole County3
- Silver Bow County3
- Big Horn County3
- Rosebud County3
- Yellowstone County3
- Granite County3
- Missoula County3
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. Warning verification from the Mesonet's Cow. Rebuilt daily.