Alert archive / Idaho / Red Flag Warnings / 2026
Red Flag Warnings in Idaho, August 2026
14 red flag warnings in August 2026. 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 August 2026. Tap one for its archive.
- Red Flag Warnings
- 14
- Busiest day
- August 21, 20263 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 |
|---|---|---|---|---|
| Aug 6, 9:41 PM MDT | Red Flag Warning | MSO | Clearwater, Idaho, Latah, Lewis, Nez Perce | 47 hr |
| Aug 7, 12:33 PM MDT | Red Flag Warning | PIH | Butte, Custer, Idaho, Lemhi, Valley | 32 hr |
| Aug 8, 9:05 PM MDT | Red Flag Warning | PIH | Butte, Custer, Idaho, Lemhi, Valley | 24 hr |
| Aug 9, 9:37 PM MDT | Red Flag Warning | PIH | Bingham, Blaine, Bonneville, Butte, Clark, Custer and 11 more | 23 hr |
| Aug 11, 12:02 PM MDT | Red Flag Warning | OTX | Benewah, Bonner, Boundary, Kootenai, Shoshone | 45 hr |
| Aug 12, 1:20 PM MDT | Red Flag Warning | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 10 more | 3 days |
| Aug 12, 1:30 PM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 19 more | 32 hr |
| Aug 21, 11:55 AM MDT | Red Flag Warning | OTX | Benewah, Bonner, Boundary, Kootenai, Shoshone | 44 hr |
| Aug 21, 12:41 PM MDT | Red Flag Warning | PIH | Bingham, Blaine, Boise, Bonneville, Butte, Cassia and 14 more | 32 hr |
| Aug 21, 5:20 PM MDT | Red Flag Warning | BOI | Adams, Boise, Camas, Elmore, Gem, Gooding and 7 more | 31 hr |
| Aug 24, 4:40 AM MDT | Red Flag Warning | BOI | Owyhee, Twin Falls | 16 hr |
| Aug 25, 1:07 PM MDT | Red Flag Warning | MSO | Clearwater, Idaho, Latah, Lewis, Nez Perce | 31 hr |
| Aug 26, 11:02 AM MDT | Red Flag Warning | BOI | Owyhee | 34 hr |
| Aug 31, 1:37 PM MDT | Red Flag Warning | PIH | Blaine, Boise, Custer | 47 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Idaho County9
- Valley County7
- Custer County6
- Butte County5
- Lemhi County5
- Jerome County5
- Lincoln County5
- Boise County5
- Twin Falls County5
- Blaine County4
- Owyhee County4
- Bingham County3
- Bonneville County3
- Clark County3
- Fremont County3
- Jefferson County3
- Madison County3
- Minidoka County3
- Power County3
- Teton County3
- Clearwater County2
- Latah County2
- Lewis County2
- Nez Perce County2
- Benewah County2
- Bonner County2
- Boundary County2
- Kootenai County2
- Shoshone County2
- Adams County2
- Camas County2
- Elmore County2
- Gem County2
- Gooding County2
- Washington County2
- Cassia County2
- Ada County1
- Canyon County1
- Payette County1
- Bannock County1
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.