Alert archive / Idaho / 2026
Weather alerts in Idaho, September 2026
93 weather alerts in September 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2026. Tap one for its archive.
- Alerts
- 93
- Warnings
- 31
- Watches
- 9
- Advisories
- 6
- Busiest day
- September 18, 202629 alerts
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 1, 3:45 PM MDT | Special Weather Statement | BOI | Twin Falls | 45 min |
| Sep 1, 4:24 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 21 min |
| Sep 1, 4:44 PM MDT | Special Weather Statement | BOI | Jerome | 46 min |
| Sep 1, 4:51 PM MDT | Special Weather Statement | PIH | Lincoln | 39 min |
| Sep 1, 5:16 PM MDT | Special Weather Statement | PIH | Lincoln | 44 min |
| Sep 1, 5:43 PM MDT | Special Weather Statement | MSO | Lemhi | 32 min |
| Sep 1, 5:52 PM MDT | Special Weather Statement | BOI | Jerome | 38 min |
| Sep 1, 6:03 PM MDT | Special Weather Statement | BOI | Boise | 27 min |
| Sep 1, 6:11 PM MDT | Special Weather Statement | PIH | Blaine | 49 min |
| Sep 1, 6:27 PM MDT | Special Weather Statement | BOI | Boise | 33 min |
| Sep 1, 6:43 PM MDT | Special Weather Statement | PIH | Bingham | 47 min |
| Sep 1, 7:20 PM MDT | Special Weather Statement | BOI | Boise | 40 min |
| Sep 2, 2:03 PM MDT | Flash Flood Watch | BOI | Adams, Boise, Camas, Canyon, Elmore, Gem and 4 more | 53 hr |
| Sep 2, 7:33 PM MDT | Flash Flood Watch | PIH | Blaine, Custer | 47 hr |
| Sep 2, 8:03 PM MDT | Dust Storm Advisory | OTX | Kootenai | 57 min |
| Sep 4, 12:05 AM MDT | Areal Flood Advisory | BOI | Payette, Washington | 2 hr |
| Sep 6, 5:17 PM MDT | Special Weather Statement | OTX | Shoshone | 28 min |
| Sep 6, 5:47 PM MDT | Special Weather Statement | OTX | Kootenai | 28 min |
| Sep 6, 5:51 PM MDT | Special Weather Statement | OTX | Shoshone | 24 min |
| Sep 6, 6:08 PM MDT | Special Weather Statement | OTX | Bonner | 37 min |
| Sep 6, 6:17 PM MDT | Special Weather Statement | OTX | Bonner | 28 min |
| Sep 6, 6:22 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Kootenai, Shoshone | 20 min |
| Sep 6, 6:35 PM MDT | Areal Flood Advisory | OTX | Shoshone | 3 hr |
| Sep 6, 7:27 PM MDT | Special Weather Statement | OTX | Bonner | 33 min |
| Sep 6, 7:39 PM MDT | Special Weather Statement | OTX | Boundary | 36 min |
| Sep 6, 8:52 PM MDT | Special Weather Statement | PIH | Bingham | 38 min |
| Sep 6, 9:37 PM MDT | Special Weather Statement | BOI | Gooding, Twin Falls | 83 min |
| Sep 9, 11:39 AM MDT | Red Flag Warning | PIH | Bingham, Bonneville, Butte, Clark, Fremont, Jefferson and 3 more | 32 hr |
| Sep 10, 12:40 PM MDT | Fire Weather Watch | BOI | Owyhee, Twin Falls | 24 hr |
| Sep 10, 7:37 PM MDT | Fire Weather Watch | PIH | Cassia, Twin Falls | 25 hr |
| Sep 10, 7:37 PM MDT | Red Flag Warning | PIH | Bingham, Bonneville, Butte, Clark, Fremont, Jefferson and 3 more | 25 hr |
| Sep 10, 8:09 PM MDT | Special Weather Statement | PIH | Jefferson | 51 min |
| Sep 11, 12:47 PM MDT | Red Flag Warning | BOI | Owyhee, Twin Falls | 32 hr |
| Sep 11, 8:32 PM MDT | Red Flag Warning | PIH | Cassia, Twin Falls | 24 hr |
| Sep 12, 12:59 PM MDT | Wind Advisory | PIH | Bingham, Bonneville, Butte, Clark, Jefferson | 30 hr |
| Sep 13, 4:00 PM MDT | Special Weather Statement | OTX | Nez Perce | 30 min |
| Sep 13, 4:50 PM MDT | Special Weather Statement | OTX | Nez Perce | 25 min |
| Sep 14, 1:06 AM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 32 hr |
| Sep 16, 10:40 AM MDT | Fire Weather Watch | BOI | Boise, Camas, Elmore, Gem, Valley | 18 hr |
| Sep 16, 11:43 PM MDT | Special Weather Statement | BOI | Jerome | 47 min |
| Sep 17, 12:09 AM MDT | Special Weather Statement | PIH | Oneida | 51 min |
| Sep 17, 12:43 AM MDT | Severe Thunderstorm Warning | BOI | Gooding, Jerome, Twin Falls | 47 min |
| Sep 17, 12:46 AM MDT | Special Weather Statement | PIH | Power | 29 min |
| Sep 17, 4:31 AM MDT | Red Flag Warning | BOI | Boise, Camas, Elmore, Gem, Valley | 16 hr |
| Sep 17, 10:04 AM MDT | Flash Flood Warning | PIH | Jefferson, Madison | 3 hr |
| Sep 17, 1:42 PM MDT | Fire Weather Watch | BOI | Boise, Camas, Elmore, Gem, Gooding, Jerome and 4 more | 18 hr |
| Sep 17, 1:46 PM MDT | Mesoscale Discussion | SPC | Bannock, Bingham, Blaine, Butte, Camas, Custer and 4 more | 2 hr |
| Sep 17, 1:47 PM MDT | Severe Thunderstorm Warning | PIH | Oneida, Power | 28 min |
| Sep 17, 1:50 PM MDT | Special Weather Statement | PIH | Minidoka | 25 min |
| Sep 17, 1:52 PM MDT | Special Weather Statement | PIH | Blaine | 23 min |
| Sep 17, 2:09 PM MDT | Special Weather Statement | BOI | Valley | 51 min |
| Sep 17, 2:12 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte | 33 min |
| Sep 17, 2:14 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida, Power | 16 min |
| Sep 17, 2:28 PM MDT | Special Weather Statement | BOI | Camas | 32 min |
| Sep 17, 2:29 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte, Minidoka, Power | 46 min |
| Sep 17, 2:43 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Butte, Jefferson | 47 min |
| Sep 17, 3:16 PM MDT | Special Weather Statement | PIH | Bingham | 29 min |
| Sep 17, 3:28 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Jefferson | 62 min |
| Sep 17, 4:16 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Clark, Fremont, Jefferson, Madison | 44 min |
| Sep 17, 4:24 PM MDT | Special Weather Statement | BOI | 36 min | |
| Sep 17, 4:57 PM MDT | Special Weather Statement | PIH | Clark, Fremont | 48 min |
| Sep 17, 5:38 PM MDT | Special Weather Statement | PIH | Bingham | 37 min |
| Sep 17, 6:14 PM MDT | Special Weather Statement | PIH | Bingham | 31 min |
| Sep 17, 7:32 PM MDT | Severe Thunderstorm Warning | PIH | Bear Lake | 29 min |
| Sep 17, 7:52 PM MDT | Special Weather Statement | PIH | Jefferson | 53 min |
| Sep 17, 8:25 PM MDT | Special Weather Statement | PIH | Bingham | 50 min |
| Sep 17, 9:08 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 52 min |
| Sep 17, 9:32 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 43 min |
| Sep 17, 9:51 PM MDT | Flash Flood Warning | PIH | Madison | 5 hr |
| Sep 17, 10:00 PM MDT | Flash Flood Warning | PIH | Bonneville, Jefferson | 4 hr |
| Sep 17, 10:05 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Oneida, Power | 29 min |
| Sep 17, 10:11 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Jefferson | 36 min |
| Sep 17, 10:25 PM MDT | Flash Flood Warning | PIH | Jefferson, Madison | 4 hr |
| Sep 17, 10:37 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou, Power | 38 min |
| Sep 17, 11:24 PM MDT | Special Weather Statement | PIH | Bonneville, Teton | 66 min |
| Sep 17, 11:26 PM MDT | Special Weather Statement | PIH | Bonneville | 49 min |
| Sep 18, 12:17 AM MDT | Special Weather Statement | PIH | Bonneville, Madison, Teton | 43 min |
| Sep 18, 12:21 AM MDT | Special Weather Statement | PIH | Bingham | 39 min |
| Sep 18, 12:54 AM MDT | Special Weather Statement | RIW | Teton | 51 min |
| Sep 18, 2:52 AM MDT | Flash Flood Watch | PIH | Bonneville, Fremont, Jefferson, Madison | 8 hr |
| Sep 18, 8:28 AM MDT | Special Weather Statement | PIH | Bannock, Bear Lake, Caribou | 32 min |
| Sep 18, 9:08 AM MDT | Flash Flood Warning | PIH | Blaine | 5 hr |
| Sep 18, 9:18 AM MDT | Special Weather Statement | BOI | Gooding | 27 min |
| Sep 18, 9:50 AM MDT | Areal Flood Advisory | BOI | Elmore, Gooding, Owyhee, Twin Falls | 5 hr |
| Sep 18, 10:30 AM MDT | Flood Watch | PIH | Bannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 10 more | 8 hr |
| Sep 18, 10:44 AM MDT | Flash Flood Warning | PIH | Jefferson, Madison | 89 min |
| Sep 18, 10:50 AM MDT | Flash Flood Watch | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 8 more | 13 hr |
| Sep 18, 11:49 AM MDT | Flash Flood Warning | BOI | Elmore | 2 hr |
| Sep 18, 1:37 PM MDT | Flash Flood Warning | PIH | Blaine, Butte, Custer | 3 hr |
| Sep 18, 5:21 PM MDT | Flash Flood Warning | BOI | Boise | 2 hr |
| Sep 18, 5:47 PM MDT | Flash Flood Warning | BOI | Boise | 118 min |
| Sep 22, 2:34 PM MDT | Mesoscale Discussion | SPC | Franklin | 116 min |
| Sep 22, 7:41 PM MDT | Special Weather Statement | PIH | Caribou | 34 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 16 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 45 |
| Flooding | |
| Flash Flood Warning | 10 |
| Flash Flood Watch | 4 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| Dust Storm Advisory | 1 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bingham County22
- Jefferson County17
- Bonneville County14
- Twin Falls County11
- Butte County11
- Madison County11
- Power County11
- Boise County10
- Blaine County10
- Jerome County7
- Camas County7
- Elmore County7
- Fremont County7
- Bannock County7
- Owyhee County6
- Valley County6
- Gooding County6
- Clark County6
- Teton County6
- Lincoln County5
- Gem County5
- Oneida County5
- Custer County4
- Shoshone County4
- Bonner County4
- Minidoka County4
- Caribou County4
- Payette County3
- Washington County3
- Kootenai County3
- Bear Lake County3
- Adams County2
- Canyon County2
- Cassia County2
- Nez Perce County2
- Franklin County2
- Lemhi County1
- Boundary County1
- Ada 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.