Alert archive / Idaho / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Idaho, 2022
144 severe thunderstorm warnings in 2022. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Severe Thunderstorm Warnings
- 144
- Busiest month
- August73 severe thunderstorm warnings
- Busiest day
- August 12, 202228 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
53 of 144 severe thunderstorm warnings covering Idaho in 2022 had a qualifying storm report inside them; 81 of 169 hail, wind and damage reports fell inside a warning, on average 19 minutes after it went out.
Idaho, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 144 | 53 | 63% | 169 | 48% | 19 min |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: severe thunderstorm warnings | 76 | 39 | 49% | 90 | 74% | 16 min |
| NWS Pocatello, ID: severe thunderstorm warnings | 58 | 15 | 74% | 84 | 36% | 21 min |
| NWS Spokane, WA: severe thunderstorm warnings | 38 | 22 | 42% | 115 | 53% | 16 min |
| NWS Boise, ID: severe thunderstorm warnings | 61 | 15 | 75% | 40 | 63% | 23 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 |
|---|---|---|---|---|
| Apr 30, 5:42 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 48 min |
| May 2, 4:01 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Lincoln, Minidoka | 29 min |
| May 2, 4:27 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte, Lincoln, Minidoka | 33 min |
| May 2, 4:31 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Cassia, Lincoln, Minidoka, Power | 29 min |
| May 2, 4:58 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte, Cassia, Minidoka, Power | 32 min |
| May 2, 5:33 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 5 more | 27 min |
| May 2, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Caribou and 5 more | 46 min |
| May 26, 4:53 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Blaine, Cassia, Power | 21 min |
| Jun 3, 3:15 PM MDT | Severe Thunderstorm Warning | OTX | Nez Perce | 29 min |
| Jun 3, 6:05 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Kootenai, Shoshone | 25 min |
| Jun 5, 2:33 PM MDT | Severe Thunderstorm Warning | BOI | Payette, Washington | 42 min |
| Jun 5, 3:10 PM MDT | Severe Thunderstorm Warning | BOI | Gem, Payette, Washington | 38 min |
| Jun 5, 3:11 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee, Twin Falls | 33 min |
| Jun 5, 4:00 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Elmore | 45 min |
| Jun 5, 4:42 PM MDT | Severe Thunderstorm Warning | OTX | Latah, Nez Perce | 48 min |
| Jun 5, 4:47 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore | 43 min |
| Jun 5, 5:26 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont | 25 min |
| Jun 5, 5:28 PM MDT | Severe Thunderstorm Warning | OTX | Latah | 35 min |
| Jun 5, 5:30 PM MDT | Severe Thunderstorm Warning | BOI | Elmore, Gooding, Jerome, Owyhee, Twin Falls | 45 min |
| Jun 5, 5:31 PM MDT | Severe Thunderstorm Warning | BOI | Camas, Elmore | 44 min |
| Jun 5, 5:32 PM MDT | Severe Thunderstorm Warning | OTX | Nez Perce | 28 min |
| Jun 5, 6:14 PM MDT | Severe Thunderstorm Warning | BOI | Gooding, Jerome, Twin Falls | 46 min |
| Jun 5, 6:32 PM MDT | Severe Thunderstorm Warning | OTX | Benewah | 28 min |
| Jun 5, 6:47 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 28 min |
| Jun 5, 7:38 PM MDT | Severe Thunderstorm Warning | OTX | Bonner | 37 min |
| Jun 5, 8:07 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Boundary | 17 min |
| Jun 5, 8:09 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Cassia, Minidoka, Oneida, Power | 51 min |
| Jun 5, 9:51 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 39 min |
| Jun 5, 10:15 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 30 min |
| Jun 5, 10:47 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore, Owyhee | 43 min |
| Jun 5, 11:48 PM MDT | Severe Thunderstorm Warning | BOI | Elmore | 26 min |
| Jun 23, 5:39 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 51 min |
| Jul 2, 3:58 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson | 32 min |
| Jul 2, 4:00 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Bonneville, Butte, Power | 30 min |
| Jul 2, 4:27 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Bonneville, Butte, Power | 33 min |
| Jul 2, 4:39 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte, Jefferson | 36 min |
| Jul 2, 4:54 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Jefferson, Madison | 36 min |
| Jul 2, 5:07 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Butte, Jefferson | 23 min |
| Jul 2, 5:29 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Clark, Custer, Fremont and 2 more | 46 min |
| Jul 2, 6:57 PM MDT | Severe Thunderstorm Warning | PIH | Teton | 33 min |
| Jul 3, 1:55 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 35 min |
| Jul 3, 2:39 PM MDT | Severe Thunderstorm Warning | MSO | Lemhi | 36 min |
| Jul 6, 7:08 PM MDT | Severe Thunderstorm Warning | OTX | Lewis, Nez Perce | 56 min |
| Jul 6, 7:25 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 35 min |
| Jul 6, 7:52 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 23 min |
| Jul 6, 7:59 PM MDT | Severe Thunderstorm Warning | OTX | Lewis | 46 min |
| Jul 7, 8:59 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 20 min |
| Jul 8, 6:21 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 39 min |
| Jul 8, 6:55 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 35 min |
| Jul 9, 4:09 PM MDT | Severe Thunderstorm Warning | BOI | Adams, Washington | 51 min |
| Jul 9, 4:54 PM MDT | Severe Thunderstorm Warning | BOI | Adams, Valley | 51 min |
| Jul 9, 5:40 PM MDT | Severe Thunderstorm Warning | BOI | Valley | 24 min |
| Jul 13, 3:05 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Cassia, Oneida, Power | 25 min |
| Jul 13, 3:30 PM MDT | Severe Thunderstorm Warning | MSO | Lemhi | 15 min |
| Jul 13, 3:32 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 28 min |
| Jul 13, 3:55 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 35 min |
| Jul 13, 4:15 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham | 30 min |
| Jul 13, 4:45 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Bonneville, Caribou | 45 min |
| Jul 13, 6:53 PM MDT | Severe Thunderstorm Warning | PIH | Bear Lake | 37 min |
| Jul 14, 5:24 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Caribou | 25 min |
| Aug 2, 4:46 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Teton | 29 min |
| Aug 2, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville | 36 min |
| Aug 3, 7:55 PM MDT | Severe Thunderstorm Warning | BOI | Washington | 39 min |
| Aug 10, 4:10 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Gem, Payette | 39 min |
| Aug 10, 4:49 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 41 min |
| Aug 11, 5:25 AM MDT | Severe Thunderstorm Warning | OTX | Bonner, Boundary | 65 min |
| Aug 11, 3:56 PM MDT | Severe Thunderstorm Warning | OTX | Lewis, Nez Perce | 49 min |
| Aug 11, 4:00 PM MDT | Severe Thunderstorm Warning | OTX | Lewis, Nez Perce | 45 min |
| Aug 11, 4:27 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Owyhee | 48 min |
| Aug 11, 4:27 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 33 min |
| Aug 11, 4:49 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Payette | 41 min |
| Aug 11, 4:49 PM MDT | Severe Thunderstorm Warning | OTX | Lewis | 41 min |
| Aug 11, 5:00 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 30 min |
| Aug 11, 5:12 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Owyhee | 48 min |
| Aug 11, 5:29 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 31 min |
| Aug 11, 5:34 PM MDT | Severe Thunderstorm Warning | OTX | Benewah, Kootenai | 41 min |
| Aug 11, 5:36 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Owyhee, Payette | 39 min |
| Aug 11, 5:49 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 26 min |
| Aug 11, 6:07 PM MDT | Severe Thunderstorm Warning | OTX | Benewah, Kootenai | 38 min |
| Aug 11, 6:40 PM MDT | Severe Thunderstorm Warning | OTX | Kootenai | 50 min |
| Aug 11, 9:29 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Boundary | 46 min |
| Aug 12, 12:51 PM MDT | Severe Thunderstorm Warning | BOI | Adams, Valley | 25 min |
| Aug 12, 1:52 PM MDT | Severe Thunderstorm Warning | OTX | Lewis, Nez Perce | 25 min |
| Aug 12, 1:58 PM MDT | Severe Thunderstorm Warning | BOI | Elmore, Owyhee | 47 min |
| Aug 12, 2:02 PM MDT | Severe Thunderstorm Warning | BOI | Adams | 28 min |
| Aug 12, 2:08 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 37 min |
| Aug 12, 2:30 PM MDT | Severe Thunderstorm Warning | BOI | Adams | 30 min |
| Aug 12, 2:39 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore, Owyhee | 36 min |
| Aug 12, 2:54 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 28 min |
| Aug 12, 3:08 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 42 min |
| Aug 12, 3:11 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Elmore | 23 min |
| Aug 12, 3:22 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 38 min |
| Aug 12, 3:45 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 30 min |
| Aug 12, 3:46 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore, Owyhee | 29 min |
| Aug 12, 3:46 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Boise, Elmore | 29 min |
| Aug 12, 3:48 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Elmore | 27 min |
| Aug 12, 4:02 PM MDT | Severe Thunderstorm Warning | BOI | Valley | 28 min |
| Aug 12, 4:03 PM MDT | Severe Thunderstorm Warning | BOI | Elmore, Owyhee | 27 min |
| Aug 12, 4:07 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 17 min |
| Aug 12, 4:12 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore, Owyhee | 33 min |
| Aug 12, 4:13 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Boise, Elmore | 30 min |
| Aug 12, 4:21 PM MDT | Severe Thunderstorm Warning | BOI | Elmore, Owyhee | 39 min |
| Aug 12, 4:28 PM MDT | Severe Thunderstorm Warning | BOI | Valley | 32 min |
| Aug 12, 5:04 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee, Twin Falls | 41 min |
| Aug 12, 5:32 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Valley | 43 min |
| Aug 12, 5:32 PM MDT | Severe Thunderstorm Warning | BOI | Valley | 28 min |
| Aug 12, 6:11 PM MDT | Severe Thunderstorm Warning | BOI | Valley | 26 min |
| Aug 13, 1:58 PM MDT | Severe Thunderstorm Warning | PIH | Oneida, Power | 32 min |
| Aug 13, 2:29 PM MDT | Severe Thunderstorm Warning | PIH | Oneida, Power | 31 min |
| Aug 13, 3:09 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Jefferson | 66 min |
| Aug 13, 3:22 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Butte, Jefferson | 34 min |
| Aug 13, 4:15 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Jefferson | 45 min |
| Aug 13, 4:58 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Teton | 32 min |
| Aug 13, 5:24 PM MDT | Severe Thunderstorm Warning | PIH | Fremont | 36 min |
| Aug 19, 3:41 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida, Power | 30 min |
| Aug 19, 3:46 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 44 min |
| Aug 19, 5:14 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Jefferson, Madison | 39 min |
| Aug 19, 5:25 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Madison | 35 min |
| Aug 19, 5:39 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bear Lake, Caribou | 34 min |
| Aug 19, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Madison | 36 min |
| Aug 21, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 61 min |
| Aug 21, 7:08 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Oneida, Power | 37 min |
| Aug 22, 4:15 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 16 min |
| Aug 24, 2:27 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Power | 33 min |
| Aug 24, 7:23 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 37 min |
| Aug 24, 7:45 PM MDT | Severe Thunderstorm Warning | OTX | Lewis, Nez Perce | 45 min |
| Aug 25, 2:29 PM MDT | Severe Thunderstorm Warning | OTX | Shoshone | 15 min |
| Aug 26, 2:29 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida, Power | 31 min |
| Aug 26, 2:52 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Caribou | 23 min |
| Aug 26, 2:58 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida | 32 min |
| Aug 26, 3:00 PM MDT | Severe Thunderstorm Warning | PIH | Bear Lake, Caribou, Franklin | 30 min |
| Aug 26, 3:28 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida | 19 min |
| Aug 26, 5:08 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 37 min |
| Sep 7, 6:08 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Gem, Owyhee, Payette, Washington | 37 min |
| Sep 7, 6:41 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Adams, Boise, Canyon, Gem, Payette and 2 more | 64 min |
| Sep 21, 12:22 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 23 min |
| Sep 21, 2:26 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bear Lake, Caribou | 34 min |
| Sep 21, 4:34 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Oneida, Power | 26 min |
| Sep 21, 4:44 PM MDT | Severe Thunderstorm Warning | PIH | Butte, Clark, Jefferson | 46 min |
| Sep 21, 6:32 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Power | 28 min |
| Sep 21, 7:00 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 30 min |
| Sep 21, 7:05 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida, Power | 40 min |
| Sep 21, 7:46 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou | 29 min |
| Sep 29, 2:48 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Teton | 37 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bingham County24
- Power County21
- Owyhee County19
- Bannock County18
- Bonneville County16
- Elmore County16
- Idaho County16
- Butte County13
- Blaine County12
- Jefferson County12
- Cassia County11
- Ada County11
- Oneida County11
- Valley County9
- Clark County8
- Caribou County8
- Nez Perce County8
- Canyon County8
- Payette County7
- Fremont County7
- Lewis County7
- Minidoka County6
- Washington County6
- Twin Falls County6
- Adams County6
- Boise County6
- Bonner County5
- Madison County5
- Clearwater County5
- Kootenai County4
- Gem County4
- Jerome County4
- Teton County4
- Bear Lake County4
- Lincoln County3
- Custer County3
- Benewah County3
- Boundary County3
- Shoshone County2
- Latah County2
4 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20212023
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.