Alert archive / Montana / Red Flag Warnings / 2020
Red Flag Warnings in Montana, September 2020
16 red flag warnings in September 2020. 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in September 2020. Tap one for its archive.
- Red Flag Warnings
- 16
- Busiest day
- September 4, 20204 red flag warnings
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 |
|---|---|---|---|---|
| Sep 4, 11:14 AM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 57 hr |
| Sep 4, 11:21 AM MDT | Red Flag Warning | GGW | Garfield, McCone, Petroleum, Phillips, Valley | 34 hr |
| Sep 4, 11:21 AM MDT | Red Flag Warning | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 33 hr |
| Sep 4, 12:29 PM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Flathead, Glacier, Granite, Jefferson and 10 more | 34 hr |
| Sep 13, 2:34 AM MDT | Red Flag Warning | GGW | Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 3 more | 40 hr |
| Sep 13, 3:11 AM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 42 hr |
| Sep 13, 3:17 AM MDT | Red Flag Warning | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 40 hr |
| Sep 13, 7:40 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 37 hr |
| Sep 17, 1:08 PM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 32 hr |
| Sep 18, 1:53 PM MDT | Red Flag Warning | BYZ | Big Horn, Powder River, Rosebud, Treasure, Yellowstone | 31 hr |
| Sep 23, 1:22 PM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 31 hr |
| Sep 23, 2:17 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 31 hr |
| Sep 23, 2:37 PM MDT | Red Flag Warning | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 11 more | 30 hr |
| Sep 25, 10:53 AM MDT | Red Flag Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 11 more | 33 hr |
| Sep 25, 2:40 PM MDT | Red Flag Warning | GGW | Dawson, Garfield, McCone, Petroleum, Prairie, Richland and 1 more | 13 hr |
| Sep 25, 2:42 PM MDT | Red Flag Warning | GGW | Dawson, Garfield, McCone, Petroleum, Prairie, Richland and 1 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gallatin County7
- Madison County7
- Phillips County6
- Jefferson County6
- Big Horn County5
- Powder River County5
- Rosebud County5
- Treasure County5
- Yellowstone County5
- Garfield County5
- McCone County5
- Petroleum County5
- Powell County5
- Carbon County4
- Carter County4
- Custer County4
- Fallon County4
- Golden Valley County4
- Musselshell County4
- Park County4
- Stillwater County4
- Sweet Grass County4
- Wheatland County4
- Glacier County4
- Lewis and Clark County4
- Dawson County4
- Prairie County4
- Richland County4
- Wibaux County4
- Valley County3
- Blaine County3
- Broadwater County3
- Cascade County3
- Chouteau County3
- Fergus County3
- Hill County3
- Judith Basin County3
- Liberty County3
- Meagher County3
- Pondera 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.