Alert archive / Montana / 2020
Weather alerts in Montana, April 2020
105 weather alerts in April 2020, 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 2020. Tap one for its archive.
- Alerts
- 105
- Warnings
- 12
- Watches
- 7
- Advisories
- 20
- Busiest day
- April 30, 202026 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, 7:48 PM MDT | Areal Flood Advisory | TFX | Blaine, Hill | 38 hr |
| Apr 1, 8:31 AM MDT | Special Weather Statement | MSO | Missoula | 89 min |
| Apr 1, 1:07 PM MDT | Special Weather Statement | MSO | Missoula | 53 min |
| Apr 1, 2:01 PM MDT | Special Weather Statement | MSO | Missoula | 44 min |
| Apr 1, 2:21 PM MDT | Special Weather Statement | MSO | Missoula | 39 min |
| Apr 1, 2:43 PM MDT | Winter Weather Advisory | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more | 18 hr |
| Apr 1, 3:02 PM MDT | Special Weather Statement | MSO | Missoula | 43 min |
| Apr 3, 7:08 AM MDT | Winter Weather Advisory | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Sanders | 5 hr |
| Apr 3, 9:32 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 3 more | 8 hr |
| Apr 4, 2:14 PM MDT | Winter Weather Advisory | MSO | Mineral, Missoula, Sanders | 20 hr |
| Apr 6, 9:32 AM MDT | Special Weather Statement | TFX | 103 min | |
| Apr 6, 5:29 PM MDT | Special Weather Statement | BYZ | Carter | 46 min |
| Apr 7, 8:50 PM MDT | Areal Flood Advisory | TFX | Blaine, Hill | 72 hr |
| Apr 8, 3:44 AM MDT | Winter Storm Watch | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 1 more | 59 hr |
| Apr 8, 3:49 AM MDT | Winter Storm Watch | TFX | 47 hr | |
| Apr 9, 3:21 AM MDT | Winter Storm Watch | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Park, Rosebud and 5 more | 24 hr |
| Apr 9, 3:24 AM MDT | Winter Storm Watch | GGW | Petroleum, Phillips | 23 hr |
| Apr 9, 1:47 PM MDT | Winter Storm Warning | TFX | 63 hr | |
| Apr 9, 1:47 PM MDT | Winter Weather Advisory | TFX | 63 hr | |
| Apr 10, 2:43 AM MDT | Winter Weather Advisory | GGW | Garfield, Petroleum, Phillips, Prairie | 39 hr |
| Apr 10, 3:01 AM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Golden Valley, Park, Rosebud, Stillwater and 2 more | 56 hr |
| Apr 10, 3:01 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 6 more | 56 hr |
| Apr 10, 3:26 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 1 more | 42 hr |
| Apr 10, 2:45 PM MDT | High Wind Warning | MSO | Flathead, Lake, Sanders | 20 hr |
| Apr 10, 2:45 PM MDT | Winter Weather Advisory | MSO | Granite, Mineral, Missoula, Ravalli, Sanders | 31 hr |
| Apr 10, 10:33 PM MDT | Special Weather Statement | TFX | Glacier, Liberty, Pondera, Toole | 117 min |
| Apr 11, 10:28 AM MDT | Special Weather Statement | MSO | Missoula | 32 min |
| Apr 11, 11:42 AM MDT | Special Weather Statement | MSO | Missoula | 33 min |
| Apr 13, 10:34 AM MDT | Special Weather Statement | TFX | Judith Basin | 56 min |
| Apr 13, 2:20 PM MDT | Winter Weather Advisory | TFX | 49 hr | |
| Apr 14, 2:59 AM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 2 more | 33 hr |
| Apr 14, 3:10 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 45 hr |
| Apr 14, 3:10 AM MDT | Winter Weather Advisory | BYZ | Big Horn, Carbon, Golden Valley, Park, Stillwater, Sweet Grass and 1 more | 45 hr |
| Apr 15, 2:36 AM MDT | Special Weather Statement | TFX | Pondera | 39 min |
| Apr 15, 4:24 AM MDT | Special Weather Statement | MSO | Missoula | 66 min |
| Apr 15, 6:26 AM MDT | Special Weather Statement | MSO | Ravalli | 49 min |
| Apr 15, 6:27 AM MDT | Special Weather Statement | MSO | Missoula | 78 min |
| Apr 15, 7:16 AM MDT | Special Weather Statement | MSO | Ravalli | 74 min |
| Apr 15, 8:47 AM MDT | Special Weather Statement | MSO | Ravalli | 73 min |
| Apr 16, 4:43 AM MDT | Special Weather Statement | BYZ | Big Horn, Carbon, Yellowstone | 2 hr |
| Apr 16, 6:47 AM MDT | Special Weather Statement | BYZ | Big Horn, Carbon | 73 min |
| Apr 16, 9:21 AM MDT | Special Weather Statement | BYZ | Stillwater | 84 min |
| Apr 17, 3:19 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 17 hr |
| Apr 17, 3:41 AM MDT | Winter Weather Advisory | TFX | 32 hr | |
| Apr 17, 3:49 AM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 28 hr |
| Apr 18, 1:52 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 30 hr |
| Apr 19, 3:11 AM MDT | Red Flag Warning | GGW | Daniels, Roosevelt, Sheridan, Valley | 18 hr |
| Apr 20, 3:20 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 16 hr |
| Apr 20, 1:57 PM MDT | Flood Watch | TFX | 42 hr | |
| Apr 21, 10:28 AM MDT | Red Flag Warning | GGW | Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 3 more | 11 hr |
| Apr 23, 7:42 AM MDT | Special Weather Statement | TFX | Jefferson | 33 min |
| Apr 23, 1:47 PM MDT | Special Weather Statement | BYZ | Carbon | 28 min |
| Apr 23, 3:17 PM MDT | Special Weather Statement | TFX | Meagher | 58 min |
| Apr 23, 3:24 PM MDT | Special Weather Statement | BYZ | Fallon | 66 min |
| Apr 23, 3:59 PM MDT | Special Weather Statement | BYZ | Big Horn | 61 min |
| Apr 23, 4:33 PM MDT | Special Weather Statement | TFX | Judith Basin | 27 min |
| Apr 23, 4:42 PM MDT | Special Weather Statement | TFX | Pondera | 33 min |
| Apr 23, 8:27 PM MDT | Special Weather Statement | TFX | Liberty | 33 min |
| Apr 23, 8:31 PM MDT | Special Weather Statement | TFX | Cascade | 29 min |
| Apr 23, 8:59 PM MDT | Special Weather Statement | TFX | Judith Basin | 31 min |
| Apr 23, 9:03 PM MDT | Special Weather Statement | TFX | Liberty | 27 min |
| Apr 24, 11:59 AM MDT | Special Weather Statement | GGW | McCone | 46 min |
| Apr 24, 12:48 PM MDT | Special Weather Statement | GGW | Roosevelt | 42 min |
| Apr 24, 1:38 PM MDT | Special Weather Statement | BYZ | Fallon | 52 min |
| Apr 24, 2:41 PM MDT | Special Weather Statement | BYZ | Carter | 64 min |
| Apr 25, 3:05 PM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 11 hr |
| Apr 26, 2:28 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 18 hr |
| Apr 26, 2:33 AM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 17 hr |
| Apr 26, 1:17 PM MDT | Red Flag Warning | TFX | Blaine, Hill, Phillips | 7 hr |
| Apr 27, 3:04 AM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 24 hr |
| Apr 27, 2:41 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 30 hr |
| Apr 27, 7:47 PM MDT | Special Weather Statement | GGW | Phillips | 58 min |
| Apr 27, 8:28 PM MDT | Special Weather Statement | GGW | Valley | 62 min |
| Apr 27, 8:47 PM MDT | Special Weather Statement | GGW | Valley | 58 min |
| Apr 27, 9:06 PM MDT | Special Weather Statement | GGW | Daniels | 54 min |
| Apr 27, 10:00 PM MDT | Special Weather Statement | GGW | Daniels, Roosevelt, Sheridan | 60 min |
| Apr 28, 2:44 AM MDT | Red Flag Warning | TFX | Blaine, Chouteau, Fergus, Hill, Phillips | 18 hr |
| Apr 28, 3:13 AM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 18 hr |
| Apr 28, 12:42 PM MDT | High Wind Warning | GGW | Wibaux | 5 hr |
| Apr 29, 9:10 PM MDT | Special Weather Statement | MSO | 50 min | |
| Apr 30, 12:44 PM MDT | Special Weather Statement | MSO | Powell | 31 min |
| Apr 30, 1:11 PM MDT | Special Weather Statement | MSO | Powell | 19 min |
| Apr 30, 1:29 PM MDT | Special Weather Statement | TFX | Jefferson | 46 min |
| Apr 30, 1:33 PM MDT | Special Weather Statement | TFX | 42 min | |
| Apr 30, 2:00 PM MDT | Special Weather Statement | TFX | Broadwater | 45 min |
| Apr 30, 2:07 PM MDT | Special Weather Statement | TFX | 38 min | |
| Apr 30, 2:18 PM MDT | Special Weather Statement | TFX | Broadwater | 42 min |
| Apr 30, 2:42 PM MDT | Special Weather Statement | TFX | Cascade | 48 min |
| Apr 30, 3:03 PM MDT | Special Weather Statement | TFX | Broadwater | 42 min |
| Apr 30, 3:07 PM MDT | Special Weather Statement | TFX | Broadwater | 38 min |
| Apr 30, 3:10 PM MDT | Special Weather Statement | MSO | Silver Bow | 35 min |
| Apr 30, 3:18 PM MDT | Special Weather Statement | TFX | Jefferson | 42 min |
| Apr 30, 3:25 PM MDT | Special Weather Statement | TFX | Broadwater | 50 min |
| Apr 30, 3:47 PM MDT | Special Weather Statement | TFX | Meagher | 43 min |
| Apr 30, 4:02 PM MDT | Special Weather Statement | TFX | Jefferson | 43 min |
| Apr 30, 4:25 PM MDT | Special Weather Statement | TFX | Cascade | 50 min |
| Apr 30, 4:42 PM MDT | Special Weather Statement | TFX | Broadwater | 33 min |
| Apr 30, 4:50 PM MDT | Special Weather Statement | TFX | Broadwater | 25 min |
| Apr 30, 4:55 PM MDT | Special Weather Statement | TFX | Cascade | 35 min |
| Apr 30, 5:11 PM MDT | Special Weather Statement | TFX | Judith Basin | 49 min |
| Apr 30, 5:17 PM MDT | Special Weather Statement | TFX | Beaverhead | 28 min |
| Apr 30, 5:20 PM MDT | Special Weather Statement | TFX | Deer Lodge | 25 min |
| Apr 30, 5:23 PM MDT | Special Weather Statement | TFX | Madison | 52 min |
| Apr 30, 5:27 PM MDT | Special Weather Statement | TFX | Meagher | 48 min |
| Apr 30, 5:31 PM MDT | Special Weather Statement | TFX | Meagher | 44 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 | |
| Special Weather Statement | 66 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 13 |
| Wind and dust | |
| High Wind Warning | 2 |
| Lake Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Missoula County17
- Phillips County14
- Valley County13
- Petroleum County11
- McCone County11
- Garfield County10
- Flathead County8
- Lake County8
- Carbon County8
- Daniels County8
- Roosevelt County8
- Big Horn County7
- Sheridan County7
- Broadwater County7
- Ravalli County6
- Sanders County6
- Powell County6
- Prairie County6
- Wibaux County6
- Mineral County5
- Deer Lodge County5
- Granite County5
- Silver Bow County5
- Park County5
- Stillwater County5
- Dawson County5
- Richland County5
- Blaine County4
- Hill County4
- Golden Valley County4
- Sweet Grass County4
- Wheatland County4
- Judith Basin County4
- Jefferson County4
- Meagher County4
- Cascade County4
- Carter County3
- Rosebud County3
- Yellowstone County3
- Fallon County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.