Alert archive / Idaho / Red Flag Warnings / 2021
Red Flag Warnings in Idaho, September 2021
13 red flag warnings in September 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in September 2021. Tap one for its archive.
- Red Flag Warnings
- 13
- Busiest day
- September 16, 20213 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 5, 1:28 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 17 more | 32 hr |
| Sep 5, 3:13 PM MDT | Red Flag Warning | BOI | Idaho, Valley | 7 hr |
| Sep 6, 8:18 AM MDT | Red Flag Warning | BOI | Boise, Camas, Elmore, Gem, Idaho, Valley | 13 hr |
| Sep 7, 12:37 PM MDT | Red Flag Warning | PIH | Butte, Custer, Idaho, Lemhi, Valley | 32 hr |
| Sep 7, 1:13 PM MDT | Red Flag Warning | BOI | Boise, Gem, Idaho, Valley | 32 hr |
| Sep 8, 1:19 PM MDT | Red Flag Warning | PIH | Butte, Custer, Idaho, Lemhi, Valley | 32 hr |
| Sep 10, 2:47 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 19 more | 19 hr |
| Sep 14, 1:28 PM MDT | Red Flag Warning | PIH | Bingham, Bonneville, Butte, Clark, Fremont, Jefferson and 3 more | 32 hr |
| Sep 16, 2:59 AM MDT | Red Flag Warning | PIH | Blaine, Butte, Jerome, Lincoln, Minidoka, Power | 17 hr |
| Sep 16, 1:24 PM MDT | Red Flag Warning | BOI | Boise, Camas, Elmore, Gem, Gooding, Idaho and 5 more | 56 hr |
| Sep 16, 1:35 PM MDT | Red Flag Warning | PIH | Bingham, Blaine, Boise, Bonneville, Butte, Cassia and 14 more | 55 hr |
| Sep 26, 1:23 PM MDT | Red Flag Warning | PIH | Blaine, Boise, Custer | 51 min |
| Sep 26, 2:14 PM MDT | Red Flag Warning | PIH | Blaine, Boise, Custer | 30 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Idaho County9
- Valley County9
- Boise County8
- Butte County7
- Custer County7
- Blaine County6
- Jerome County5
- Lemhi County5
- Lincoln County5
- Power County5
- Bingham County4
- Bonneville County4
- Clark County4
- Fremont County4
- Jefferson County4
- Madison County4
- Minidoka County4
- Teton County4
- Gem County3
- Twin Falls County3
- Bannock County2
- Bear Lake County2
- Caribou County2
- Franklin County2
- Oneida County2
- Camas County2
- Elmore County2
- Cassia County2
- Gooding County1
- Owyhee County1
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. Rebuilt daily.