Alert archive / Montana / Areal Flood Advisories
Areal Flood Advisories in Montana, 2021
35 areal flood advisories in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of areal flood advisories reaches back to 2005.
Areal Flood Advisories by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Areal Flood Advisories
- 35
- Busiest month
- August24 areal flood advisories
- Busiest day
- August 2, 202111 areal flood advisories
Over time
By month
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 |
|---|---|---|---|---|
| Jan 13, 6:50 PM MST | Areal Flood Advisory | TFX | Broadwater, Gallatin | 48 hr |
| Jan 15, 6:54 PM MST | Areal Flood Advisory | TFX | Broadwater, Gallatin | 4 days |
| Feb 15, 11:04 PM MST | Areal Flood Advisory | TFX | Gallatin | 33 hr |
| Jun 8, 6:07 PM MDT | Areal Flood Advisory | GGW | Wibaux | 112 min |
| Jun 8, 9:07 PM MDT | Areal Flood Advisory | GGW | Roosevelt | 106 min |
| Jun 10, 6:24 PM MDT | Areal Flood Advisory | GGW | Richland, Wibaux | 2 hr |
| Jun 10, 7:57 PM MDT | Areal Flood Advisory | GGW | Daniels, Roosevelt, Valley | 98 min |
| Jul 20, 3:25 PM MDT | Areal Flood Advisory | MSO | Missoula | 56 min |
| Jul 20, 4:09 PM MDT | Areal Flood Advisory | MSO | Granite | 4 hr |
| Jul 20, 4:27 PM MDT | Areal Flood Advisory | MSO | Granite | 3 hr |
| Jul 20, 4:43 PM MDT | Areal Flood Advisory | MSO | Granite | 110 min |
| Aug 1, 2:45 PM MDT | Areal Flood Advisory | MSO | Missoula | 3 hr |
| Aug 1, 3:25 PM MDT | Areal Flood Advisory | MSO | Mineral | 3 hr |
| Aug 1, 4:18 PM MDT | Areal Flood Advisory | TFX | Beaverhead | 3 hr |
| Aug 1, 4:41 PM MDT | Areal Flood Advisory | MSO | Mineral | 3 hr |
| Aug 1, 4:45 PM MDT | Areal Flood Advisory | MSO | Lake | 3 hr |
| Aug 1, 5:29 PM MDT | Areal Flood Advisory | MSO | Ravalli | 3 hr |
| Aug 1, 6:30 PM MDT | Areal Flood Advisory | MSO | Flathead, Lake | 3 hr |
| Aug 1, 6:33 PM MDT | Areal Flood Advisory | MSO | Flathead | 3 hr |
| Aug 1, 6:40 PM MDT | Areal Flood Advisory | MSO | Silver Bow | 10 min |
| Aug 2, 1:25 PM MDT | Areal Flood Advisory | TFX | Broadwater, Jefferson, Lewis and Clark | 3 hr |
| Aug 2, 2:40 PM MDT | Areal Flood Advisory | TFX | Lewis and Clark | 3 hr |
| Aug 2, 2:48 PM MDT | Areal Flood Advisory | TFX | Meagher | 3 hr |
| Aug 2, 2:53 PM MDT | Areal Flood Advisory | TFX | Broadwater, Gallatin, Jefferson | 2 hr |
| Aug 2, 3:17 PM MDT | Areal Flood Advisory | TFX | Lewis and Clark | 3 hr |
| Aug 2, 4:14 PM MDT | Areal Flood Advisory | TFX | Cascade, Judith Basin, Meagher | 3 hr |
| Aug 2, 4:40 PM MDT | Areal Flood Advisory | TFX | Gallatin | 2 hr |
| Aug 2, 5:00 PM MDT | Areal Flood Advisory | TFX | Cascade, Chouteau, Judith Basin | 3 hr |
| Aug 4, 6:42 PM MDT | Areal Flood Advisory | TFX | Cascade | 2 hr |
| Aug 8, 3:09 PM MDT | Areal Flood Advisory | TFX | Cascade | 51 min |
| Aug 9, 3:47 AM MDT | Areal Flood Advisory | TFX | Glacier, Pondera, Toole | 3 hr |
| Aug 26, 6:08 PM MDT | Areal Flood Advisory | GGW | Petroleum | 2 hr |
| Aug 26, 6:54 PM MDT | Areal Flood Advisory | GGW | Garfield, Petroleum | 2 hr |
| Aug 26, 7:59 PM MDT | Areal Flood Advisory | GGW | Garfield | 92 min |
| Aug 27, 3:57 PM MDT | Areal Flood Advisory | MSO | Flathead | 113 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gallatin County5
- Broadwater County4
- Cascade County4
- Granite County3
- Flathead County3
- Lewis and Clark County3
- Wibaux County2
- Roosevelt County2
- Missoula County2
- Mineral County2
- Lake County2
- Jefferson County2
- Meagher County2
- Judith Basin County2
- Petroleum County2
- Garfield County2
- Richland County1
- Daniels County1
- Valley County1
- Beaverhead County1
- Ravalli County1
- Silver Bow County1
- Chouteau County1
- Glacier County1
- Pondera County1
- Toole County1
The busiest days
Days with the most alerts issued, by UTC date.
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.