Alert archive / Idaho / Red Flag Warnings
Red Flag Warnings in Idaho, 2021
53 red flag warnings 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Red Flag Warnings
- 53
- Busiest month
- July23 red flag warnings
- Busiest day
- August 4, 20213 red flag warnings
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 |
|---|---|---|---|---|
| Jun 9, 3:27 AM MDT | Red Flag Warning | PIH | Cassia, Twin Falls | 18 hr |
| Jun 15, 9:29 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Bonneville, Butte, Caribou and 10 more | 12 hr |
| Jun 18, 1:41 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 15 more | 32 hr |
| Jun 20, 2:31 AM MDT | Red Flag Warning | PIH | Blaine, Butte, Cassia, Jerome, Lincoln, Minidoka and 2 more | 16 hr |
| Jun 23, 1:49 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Caribou, Cassia, Franklin and 3 more | 17 hr |
| Jun 23, 8:07 AM MDT | Red Flag Warning | BOI | Owyhee, Twin Falls | 14 hr |
| Jun 23, 7:13 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Caribou, Cassia, Clark and 8 more | 26 hr |
| Jun 25, 2:15 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Caribou, Franklin, Oneida and 1 more | 19 hr |
| Jun 30, 2:07 PM MDT | Red Flag Warning | BOI | Boise, Camas, Elmore, Gem, Idaho, Owyhee and 2 more | 33 hr |
| Jun 30, 2:12 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Blaine, Boise, Bonneville, Butte and 14 more | 31 hr |
| Jul 2, 3:14 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Blaine, Boise, Bonneville, Butte and 14 more | 17 hr |
| Jul 2, 1:33 PM MDT | Red Flag Warning | BOI | Owyhee, Twin Falls | 33 hr |
| Jul 4, 2:56 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 17 more | 23 hr |
| Jul 4, 8:10 AM MDT | Red Flag Warning | BOI | Boise, Camas, Elmore, Gem, Gooding, Jerome and 4 more | 15 hr |
| Jul 5, 2:02 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Butte, Caribou, Clark and 8 more | 19 hr |
| Jul 6, 1:23 PM MDT | Red Flag Warning | PIH | Blaine, Boise, Butte, Custer, Idaho, Lemhi and 1 more | 31 hr |
| Jul 6, 3:17 PM MDT | Red Flag Warning | OTX | Benewah, Bonner, Boundary, Kootenai, Shoshone | 30 hr |
| Jul 7, 1:18 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 16 more | 32 hr |
| Jul 8, 2:59 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 14 more | 42 hr |
| Jul 11, 3:11 AM MDT | Red Flag Warning | PIH | Bingham, Blaine, Bonneville, Butte, Clark, Custer and 11 more | 18 hr |
| Jul 13, 1:05 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 16 more | 21 hr |
| Jul 13, 1:33 PM MDT | Red Flag Warning | BOI | Adams, Boise, Camas, Elmore, Gem, Idaho and 2 more | 5 days |
| Jul 15, 1:09 PM MDT | Red Flag Warning | PIH | Blaine, Boise, Custer, Idaho, Lemhi, Valley | 38 hr |
| Jul 18, 1:04 PM MDT | Red Flag Warning | MSO | Clearwater, Idaho | 35 hr |
| Jul 18, 2:23 PM MDT | Red Flag Warning | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 10 more | 57 hr |
| Jul 19, 1:53 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 19 more | 43 hr |
| Jul 19, 4:21 AM MDT | Red Flag Warning | OTX | Benewah, Bonner, Boundary, Kootenai, Shoshone | 67 hr |
| Jul 20, 12:56 PM MDT | Red Flag Warning | OTX | Benewah, Bonner, Boundary, Kootenai, Shoshone | 34 hr |
| Jul 20, 1:19 PM MDT | Red Flag Warning | MSO | Clearwater, Idaho, Latah, Lewis, Nez Perce | 33 hr |
| Jul 21, 1:15 AM MDT | Red Flag Warning | PIH | Butte, Custer, Idaho, Lemhi, Valley | 20 hr |
| Jul 22, 2:00 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Butte, Caribou, Cassia and 12 more | 19 hr |
| Jul 23, 12:54 AM MDT | Red Flag Warning | PIH | Butte, Custer, Lemhi | 20 hr |
| Jul 27, 2:05 AM MDT | Red Flag Warning | PIH | Custer, Idaho, Lemhi, Valley | 20 hr |
| Aug 4, 1:21 PM MDT | Red Flag Warning | MSO | Clearwater, Idaho, Latah, Lewis, Nez Perce | 35 hr |
| Aug 4, 1:55 PM MDT | Red Flag Warning | PIH | Custer, Idaho, Lemhi, Valley | 32 hr |
| Aug 4, 2:34 PM MDT | Red Flag Warning | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 10 more | 42 hr |
| Aug 20, 8:25 AM MDT | Red Flag Warning | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 10 more | 40 hr |
| Aug 20, 9:50 AM MDT | Red Flag Warning | PIH | Blaine, Boise, Butte, Cassia, Custer, Jerome and 4 more | 37 hr |
| Aug 29, 1:10 PM MDT | Red Flag Warning | PIH | Bingham, Blaine, Boise, Bonneville, Butte, Clark and 9 more | 32 hr |
| Aug 31, 12:49 AM MDT | Red Flag Warning | PIH | Bingham, Blaine, Boise, Bonneville, Butte, Clark and 6 more | 20 hr |
| 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 County27
- Butte County26
- Twin Falls County25
- Valley County25
- Custer County25
- Power County24
- Boise County24
- Bonneville County21
- Blaine County21
- Lemhi County21
- Clark County19
- Fremont County19
- Madison County19
- Teton County19
- Jerome County19
- Lincoln County19
- Cassia County17
- Bannock County16
- Bear Lake County16
- Caribou County16
- Franklin County16
- Oneida County16
- Bingham County14
- Jefferson County14
- Minidoka County14
- Gem County9
- Owyhee County8
- Camas County8
- Elmore County8
- Gooding County5
- Adams County4
- Washington County4
- Benewah County3
- Bonner County3
- Boundary County3
- Kootenai County3
- Shoshone County3
- Clearwater County3
- Ada County3
- Canyon County3
4 more counties
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. Rebuilt daily.