Alert archive / Montana / 2011
Weather alerts in Montana, September 2011
89 weather alerts in September 2011, 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 September 2011. Tap one for its archive.
- Alerts
- 89
- Warnings
- 40
- Watches
- 12
- Advisories
- 15
- Busiest day
- September 1, 201120 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 |
|---|---|---|---|---|
| Aug 31, 6:22 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 53 min |
| Aug 31, 6:27 PM MDT | Special Weather Statement | BYZ | Fallon | 63 min |
| Aug 31, 6:31 PM MDT | Special Weather Statement | BYZ | Big Horn, Rosebud, Treasure | 59 min |
| Aug 31, 6:38 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 53 min |
| Aug 31, 6:50 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 55 min |
| Aug 31, 6:53 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 67 min |
| Aug 31, 7:08 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Roosevelt, Wibaux | 52 min |
| Aug 31, 7:15 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Valley | 60 min |
| Aug 31, 7:23 PM MDT | Special Weather Statement | BYZ | Fallon | 67 min |
| Aug 31, 7:24 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland, Roosevelt | 66 min |
| Aug 31, 7:24 PM MDT | Mesoscale Discussion | SPC | Dawson, Richland, Roosevelt, Sheridan, Wibaux | 66 min |
| Aug 31, 7:39 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 81 min |
| Aug 31, 7:53 PM MDT | Severe Thunderstorm Watch | SPC | Richland, Roosevelt, Sheridan, Wibaux | 7 hr |
| Aug 31, 7:58 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Roosevelt, Wibaux | 47 min |
| Aug 31, 8:08 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 20 min |
| Aug 31, 9:05 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Richland, Wibaux | 55 min |
| Aug 31, 9:10 PM MDT | Special Weather Statement | GGW | Sheridan | 35 min |
| Aug 31, 10:00 PM MDT | Special Weather Statement | TFX | Fergus | 45 min |
| Sep 1, 2:38 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 37 hr |
| Sep 1, 2:38 PM MDT | Fire Weather Watch | TFX | Broadwater, Cascade, Fergus, Gallatin, Glacier, Jefferson and 7 more | 13 hr |
| Sep 2, 3:20 AM MDT | Red Flag Warning | TFX | Broadwater, Cascade, Fergus, Gallatin, Glacier, Jefferson and 7 more | 17 hr |
| Sep 2, 7:12 AM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 6 hr |
| Sep 2, 7:12 AM MDT | Wind Advisory | MSO | Flathead, Lake | 6 hr |
| Sep 2, 1:32 PM MDT | Frost Advisory | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more | 19 hr |
| Sep 2, 1:56 PM MDT | Mesoscale Discussion | SPC | Carter | 94 min |
| Sep 2, 4:17 PM MDT | Special Weather Statement | TFX | Glacier | 43 min |
| Sep 2, 5:05 PM MDT | Special Weather Statement | TFX | Glacier | 40 min |
| Sep 2, 5:49 PM MDT | Special Weather Statement | TFX | Pondera | 41 min |
| Sep 3, 2:19 PM MDT | Frost Advisory | MSO | Flathead, Lake, Lincoln, Sanders | 19 hr |
| Sep 5, 3:02 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 21 hr |
| Sep 5, 3:39 AM MDT | Red Flag Warning | TFX | Glacier, Lewis and Clark, Liberty, Pondera, Teton, Toole | 17 hr |
| Sep 6, 3:05 AM MDT | Red Flag Warning | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 17 hr |
| Sep 6, 3:31 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 18 hr |
| Sep 10, 3:23 AM MDT | Fire Weather Watch | TFX | Blaine, Cascade, Chouteau, Fergus, Glacier, Hill and 8 more | 24 hr |
| Sep 11, 3:00 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 31 hr |
| Sep 11, 3:03 AM MDT | Red Flag Warning | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 18 hr |
| Sep 11, 3:17 AM MDT | Red Flag Warning | TFX | Blaine, Cascade, Chouteau, Fergus, Glacier, Hill and 8 more | 19 hr |
| Sep 14, 3:03 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Phillips, Valley | 36 hr |
| Sep 16, 2:30 PM MDT | Fire Weather Watch | TFX | Cascade, Fergus, Glacier, Judith Basin, Lewis and Clark, Liberty and 4 more | 13 hr |
| Sep 17, 3:27 AM MDT | Red Flag Warning | TFX | Cascade, Fergus, Glacier, Judith Basin, Lewis and Clark, Liberty and 4 more | 18 hr |
| Sep 17, 12:35 PM MDT | High Wind Warning | TFX | 8 hr | |
| Sep 18, 3:26 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 15 hr |
| Sep 18, 6:25 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 33 hr |
| Sep 19, 2:23 AM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 19 hr |
| Sep 19, 9:43 AM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 10 hr |
| Sep 19, 10:53 AM MDT | Special Weather Statement | MSO | Lake | 67 min |
| Sep 19, 1:15 PM MDT | Mesoscale Discussion | SPC | Fergus, Garfield, Golden Valley, Judith Basin, McCone, Musselshell and 8 more | 2 hr |
| Sep 19, 1:51 PM MDT | Special Weather Statement | MSO | Missoula | 69 min |
| Sep 19, 3:27 PM MDT | Special Weather Statement | GGW | Valley | 48 min |
| Sep 19, 4:25 PM MDT | Special Weather Statement | BYZ | Yellowstone | 50 min |
| Sep 19, 4:35 PM MDT | High Wind Warning | TFX | 2 hr | |
| Sep 19, 4:50 PM MDT | Special Weather Statement | BYZ | Carbon, Stillwater | 40 min |
| Sep 19, 4:59 PM MDT | Special Weather Statement | BYZ | Rosebud | 46 min |
| Sep 19, 5:43 PM MDT | Special Weather Statement | BYZ | Rosebud | 47 min |
| Sep 19, 5:50 PM MDT | Special Weather Statement | BYZ | Carbon, Carter, Powder River | 55 min |
| Sep 19, 5:54 PM MDT | Special Weather Statement | GGW | Richland | 66 min |
| Sep 19, 7:19 PM MDT | Special Weather Statement | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 7 more | 56 min |
| Sep 19, 7:42 PM MDT | Special Weather Statement | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 7 more | 33 min |
| Sep 20, 3:46 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 6 hr |
| Sep 20, 2:22 PM MDT | Frost Advisory | MSO | Flathead, Lake, Missoula, Ravalli, Sanders | 19 hr |
| Sep 21, 2:03 PM MDT | Fire Weather Watch | TFX | Glacier, Lewis and Clark, Liberty, Pondera, Teton, Toole | 14 hr |
| Sep 22, 4:00 AM MDT | Red Flag Warning | TFX | Blaine, Glacier, Hill, Lewis and Clark, Liberty, Phillips and 3 more | 41 hr |
| Sep 22, 2:25 PM MDT | Fire Weather Watch | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 12 hr |
| Sep 23, 2:53 AM MDT | Red Flag Warning | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 17 hr |
| Sep 23, 4:04 AM MDT | High Wind Warning | TFX | 17 hr | |
| Sep 24, 2:25 PM MDT | Fire Weather Watch | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Lewis and Clark, Madison and 4 more | 14 hr |
| Sep 24, 2:54 PM MDT | Fire Weather Watch | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 12 hr |
| Sep 24, 6:26 PM MDT | Fire Weather Watch | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 10 hr |
| Sep 25, 2:45 AM MDT | Red Flag Warning | BYZ | Carbon, Gallatin, Golden Valley, Madison, Musselshell, Park and 3 more | 19 hr |
| Sep 25, 3:21 AM MDT | Red Flag Warning | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 17 hr |
| Sep 25, 4:51 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Lewis and Clark, Madison and 4 more | 16 hr |
| Sep 25, 4:54 AM MDT | Red Flag Warning | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 17 hr |
| Sep 25, 2:42 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 27 hr |
| Sep 25, 11:58 PM MDT | High Wind Warning | TFX | 62 hr | |
| Sep 26, 2:45 PM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 31 hr |
| Sep 27, 3:18 AM MDT | Red Flag Warning | BYZ | Gallatin, Madison, Park, Sweet Grass, Wheatland | 18 hr |
| Sep 27, 4:23 AM MDT | Red Flag Warning | TFX | Blaine, Cascade, Chouteau, Fergus, Glacier, Hill and 8 more | 17 hr |
| Sep 27, 9:59 AM MDT | Red Flag Warning | GGW | Phillips, Valley | 34 hr |
| Sep 27, 2:27 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 30 hr |
| Sep 27, 2:35 PM MDT | Fire Weather Watch | BYZ | Carter, Custer, Fallon, Rosebud, Treasure | 13 hr |
| Sep 27, 2:49 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 29 hr |
| Sep 28, 3:27 AM MDT | Red Flag Warning | BYZ | Carter, Fallon | 17 hr |
| Sep 29, 3:38 AM MDT | Red Flag Warning | TFX | Blaine, Chouteau, Fergus, Hill, Phillips | 17 hr |
| Sep 29, 3:05 PM MDT | Fire Weather Watch | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 14 hr |
| Sep 29, 3:05 PM MDT | Red Flag Warning | BYZ | Carbon, Gallatin, Madison, Park, Stillwater, Sweet Grass and 1 more | 30 hr |
| Sep 30, 4:04 AM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 41 hr |
| Sep 30, 4:07 AM MDT | High Wind Warning | TFX | 6 hr | |
| Sep 30, 4:14 AM MDT | Red Flag Warning | TFX | Cascade, Chouteau, Fergus, Glacier, Judith Basin, Liberty and 3 more | 16 hr |
| Sep 30, 2:19 PM MDT | Fire Weather Watch | GGW | Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 3 more | 13 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 | |
| Severe Thunderstorm Warning | 11 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 19 |
| Cold | |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 5 |
| Lake Wind Advisory | 11 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 24 |
| Fire Weather Watch | 11 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Phillips County25
- Valley County23
- McCone County19
- Garfield County18
- Petroleum County16
- Glacier County15
- Lewis and Clark County14
- Pondera County14
- Fergus County13
- Liberty County13
- Toole County13
- Teton County12
- Judith Basin County11
- Fallon County10
- Rosebud County10
- Cascade County10
- Gallatin County10
- Meagher County10
- Madison County10
- Roosevelt County9
- Richland County9
- Carter County9
- Carbon County9
- Treasure County8
- Jefferson County8
- Lake County8
- Stillwater County8
- Sweet Grass County8
- Dawson County7
- Wibaux County7
- Flathead County7
- Blaine County7
- Chouteau County7
- Hill County7
- Golden Valley County7
- Musselshell County7
- Wheatland County7
- Yellowstone County7
- Big Horn County6
- Sheridan County6
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.