Areal Flood Warnings in Montana
458 areal flood warnings since 1986. 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 warnings reaches back to 2005.
Areal Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Areal Flood Warnings
- 458
- Busiest year
- 2011149 areal flood warnings
- Average year
- 25over 18 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Valley County53
- Phillips County51
- Garfield County32
- Missoula County31
- Petroleum County24
- Richland County24
- Cascade County21
- Fergus County21
- Flathead County21
- Ravalli County21
- Madison County19
- Roosevelt County19
- Dawson County19
- Lewis and Clark County18
- Lincoln County18
- Chouteau County17
- McCone County17
- Blaine County14
- Carter County14
- Teton County14
- Gallatin County14
- Musselshell County14
- Sanders County14
- Glacier County13
- Judith Basin County13
- Wibaux County13
- Yellowstone County13
- Prairie County13
- Pondera County12
- Big Horn County12
- Carbon County11
- Powell County11
- Custer County11
- Hill County10
- Park County10
- Granite County10
- Rosebud County10
- Stillwater County10
- Powder River County9
- Broadwater County9
The latest areal flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:30 PM MDT | Areal Flood Warning | TFX | Glacier | 20 hr |
| Jun 29, 9:17 PM MDT | Areal Flood Warning | TFX | Glacier, Pondera | 19 hr |
| Jun 29, 8:41 PM MDT | Areal Flood Warning | TFX | Glacier, Pondera | 20 hr |
| Jun 29, 1:45 PM MDT | Areal Flood Warning | MSO | Flathead | 21 hr |
| Jun 29, 1:05 PM MDT | Areal Flood Warning | TFX | Glacier | 27 hr |
| Jun 29, 10:50 AM MDT | Areal Flood Warning | MSO | Lake | 24 hr |
| May 31, 7:42 PM MDT | Areal Flood Warning | MSO | Flathead, Lake, Sanders | 46 hr |
Nearby
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.