Flash Flood Watches in Montana
148 flash flood watches 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 flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Flash Flood Watches
- 148
- Busiest year
- 201320 flash flood watches
- Average year
- 8over 19 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.
- Dawson County22
- Prairie County21
- Roosevelt County20
- Wibaux County20
- Daniels County19
- Granite County19
- Richland County19
- Sheridan County19
- Carter County19
- McCone County18
- Valley County18
- Deer Lodge County18
- Silver Bow County18
- Powder River County17
- Rosebud County17
- Phillips County15
- Big Horn County15
- Flathead County14
- Custer County13
- Missoula County13
- Garfield County12
- Fallon County11
- Petroleum County10
- Powell County10
- Ravalli County10
- Treasure County10
- Gallatin County10
- Broadwater County9
- Lewis and Clark County9
- Meagher County9
- Sanders County8
- Carbon County7
- Musselshell County7
- Mineral County6
- Yellowstone County6
- Lincoln County6
- Stillwater County5
- Lake County5
- Park County4
- Beaverhead County4
The latest flash flood watches
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 10:18 AM MDT | Flash Flood Watch | TFX | Beaverhead, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 5 more | 51 hr |
| Aug 13, 10:05 PM MDT | Flash Flood Watch | TFX | Beaverhead | 23 hr |
| Aug 12, 12:42 PM MDT | Flash Flood Watch | TFX | Beaverhead, Broadwater, Gallatin, Lewis and Clark, Madison, Meagher | 35 hr |
| Aug 12, 3:50 AM MDT | Flash Flood Watch | TFX | Broadwater, Gallatin, Lewis and Clark, Meagher | 19 hr |
| Jul 17, 12:02 AM MDT | Flash Flood Watch | TFX | Broadwater, Gallatin, Lewis and Clark, Meagher | 24 hr |
| Jul 15, 11:51 AM MDT | Flash Flood Watch | TFX | Broadwater, Gallatin, Lewis and Clark, Meagher | 36 hr |
| Jul 1, 10:51 AM MDT | Flash Flood Watch | TFX | Broadwater, Gallatin, Lewis and Clark, Meagher | 10 hr |
| May 29, 10:15 AM MDT | Flash Flood Watch | BYZ | Carbon, Park, Rosebud, Stillwater, Sweet Grass | 35 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.