Alert archive / Idaho / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Idaho, 2013
113 severe thunderstorm warnings in 2013. 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 2013. Tap one for its archive.
- Severe Thunderstorm Warnings
- 113
- Busiest month
- July41 severe thunderstorm warnings
- Busiest day
- September 5, 201314 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.
28 of 113 severe thunderstorm warnings covering Idaho in 2013 had a qualifying storm report inside them; 36 of 92 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.
Idaho, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 113 | 28 | 75% | 92 | 39% | 25 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: severe thunderstorm warnings | 65 | 9 | 86% | 40 | 28% | 23 min |
| NWS Missoula, MT: severe thunderstorm warnings | 35 | 16 | 54% | 51 | 59% | 17 min |
| NWS Spokane, WA: severe thunderstorm warnings | 41 | 24 | 41% | 103 | 71% | 30 min |
| NWS Boise, ID: severe thunderstorm warnings | 33 | 11 | 67% | 33 | 58% | 24 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 |
|---|---|---|---|---|
| Mar 6, 11:53 AM MST | Severe Thunderstorm Warning | BOI | Boise, Canyon, Gem, Payette | 37 min |
| Mar 20, 7:29 PM MDT | Severe Thunderstorm Warning | BOI | Camas, Elmore | 46 min |
| May 8, 2:36 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Power | 39 min |
| May 13, 4:46 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 44 min |
| May 13, 6:11 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 49 min |
| Jun 10, 2:53 PM MDT | Severe Thunderstorm Warning | MSO | Lemhi | 37 min |
| Jun 12, 12:31 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Cassia, Power | 44 min |
| Jun 12, 1:08 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou, Power | 37 min |
| Jun 12, 1:40 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou | 50 min |
| Jun 12, 2:27 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou | 48 min |
| Jun 12, 2:41 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville | 49 min |
| Jun 12, 3:22 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 38 min |
| Jun 12, 9:35 PM MDT | Severe Thunderstorm Warning | PIH | Bear Lake | 40 min |
| Jun 18, 3:48 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 42 min |
| Jun 18, 4:03 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 42 min |
| Jun 19, 3:05 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Oneida, Power | 40 min |
| Jun 19, 3:43 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 47 min |
| Jun 19, 3:49 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte | 41 min |
| Jun 19, 4:00 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Bonneville, Jefferson, Madison | 45 min |
| Jun 19, 4:01 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Bonneville, Jefferson, Madison | 44 min |
| Jul 1, 4:43 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 47 min |
| Jul 2, 4:55 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte | 50 min |
| Jul 2, 5:10 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Minidoka, Power | 50 min |
| Jul 4, 4:46 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 44 min |
| Jul 4, 5:28 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 32 min |
| Jul 4, 7:05 PM MDT | Severe Thunderstorm Warning | BOI | Camas, Elmore, Gooding, Owyhee, Twin Falls | 40 min |
| Jul 4, 7:56 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 34 min |
| Jul 4, 8:01 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Lincoln, Minidoka | 59 min |
| Jul 4, 8:28 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte, Cassia, Lincoln, Minidoka, Power | 47 min |
| Jul 5, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte, Lincoln, Minidoka, Power | 51 min |
| Jul 5, 5:44 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Caribou | 46 min |
| Jul 5, 5:51 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Jefferson | 39 min |
| Jul 5, 6:29 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Jefferson | 61 min |
| Jul 5, 6:43 PM MDT | Severe Thunderstorm Warning | PIH | Bear Lake, Caribou, Franklin | 62 min |
| Jul 6, 12:18 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Madison, Teton | 42 min |
| Jul 6, 2:32 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Minidoka | 58 min |
| Jul 6, 3:05 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Teton | 55 min |
| Jul 6, 3:17 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 43 min |
| Jul 6, 3:26 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 49 min |
| Jul 6, 3:27 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Minidoka | 63 min |
| Jul 6, 4:11 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 49 min |
| Jul 6, 4:42 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou, Power | 48 min |
| Jul 6, 5:18 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont | 57 min |
| Jul 6, 5:53 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson, Madison | 67 min |
| Jul 6, 6:25 PM MDT | Severe Thunderstorm Warning | PIH | Fremont | 65 min |
| Jul 6, 6:54 PM MDT | Severe Thunderstorm Warning | PIH | Fremont | 51 min |
| Jul 6, 7:40 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Madison, Teton | 50 min |
| Jul 7, 4:16 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson | 44 min |
| Jul 7, 4:22 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Power | 38 min |
| Jul 7, 4:35 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Madison, Teton | 40 min |
| Jul 7, 4:55 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson, Madison | 50 min |
| Jul 7, 4:56 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Power | 49 min |
| Jul 7, 5:05 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Caribou, Power | 40 min |
| Jul 7, 6:05 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Cassia, Franklin, Oneida, Power | 40 min |
| Jul 8, 4:39 PM MDT | Severe Thunderstorm Warning | PIH | Fremont | 21 min |
| Jul 13, 2:28 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Caribou | 62 min |
| Jul 15, 3:33 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 42 min |
| Jul 15, 4:04 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham | 41 min |
| Jul 17, 1:26 PM MDT | Severe Thunderstorm Warning | OTX | Boundary | 34 min |
| Jul 17, 3:21 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 39 min |
| Jul 31, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Butte, Clark, Fremont, Jefferson, Madison | 51 min |
| Jul 31, 8:58 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 32 min |
| Jul 31, 9:38 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Fremont, Jefferson, Madison, Teton | 52 min |
| Aug 1, 1:55 PM MDT | Severe Thunderstorm Warning | MSO | Lemhi | 35 min |
| Aug 1, 5:14 PM MDT | Severe Thunderstorm Warning | BOI | Adams | 46 min |
| Aug 12, 6:48 PM MDT | Severe Thunderstorm Warning | MSO | Idaho | 57 min |
| Aug 20, 1:49 PM MDT | Severe Thunderstorm Warning | PIH | Oneida, Power | 41 min |
| Aug 22, 3:15 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 45 min |
| Aug 22, 5:06 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Boise, Gem | 54 min |
| Aug 22, 8:15 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Payette, Washington | 60 min |
| Aug 24, 3:08 PM MDT | Severe Thunderstorm Warning | PIH | Lincoln | 52 min |
| Aug 24, 3:12 PM MDT | Severe Thunderstorm Warning | BOI | Gooding, Jerome | 48 min |
| Aug 24, 3:40 PM MDT | Severe Thunderstorm Warning | PIH | Butte | 50 min |
| Aug 24, 3:52 PM MDT | Severe Thunderstorm Warning | BOI | Camas, Elmore, Gooding | 38 min |
| Aug 24, 3:58 PM MDT | Severe Thunderstorm Warning | PIH | Lincoln | 62 min |
| Aug 24, 4:08 PM MDT | Severe Thunderstorm Warning | BOI | Boise | 52 min |
| Aug 24, 4:45 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 60 min |
| Aug 24, 4:58 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Butte | 62 min |
| Aug 25, 8:29 PM MDT | Severe Thunderstorm Warning | OTX | Latah, Shoshone | 31 min |
| Aug 25, 8:53 PM MDT | Severe Thunderstorm Warning | OTX | Benewah, Latah, Shoshone | 22 min |
| Aug 25, 9:10 PM MDT | Severe Thunderstorm Warning | OTX | Benewah, Kootenai, Shoshone | 35 min |
| Aug 25, 9:45 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Kootenai | 60 min |
| Aug 25, 10:31 PM MDT | Severe Thunderstorm Warning | OTX | Bonner | 74 min |
| Aug 25, 11:14 PM MDT | Severe Thunderstorm Warning | OTX | Boundary | 61 min |
| Aug 26, 12:15 AM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 60 min |
| Aug 26, 12:16 AM MDT | Severe Thunderstorm Warning | OTX | Lewis | 44 min |
| Aug 27, 5:19 PM MDT | Severe Thunderstorm Warning | BOI | Elmore | 26 min |
| Sep 3, 5:58 PM MDT | Severe Thunderstorm Warning | OTX | Nez Perce | 62 min |
| Sep 4, 4:27 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Elmore, Owyhee | 48 min |
| Sep 4, 6:18 PM MDT | Severe Thunderstorm Warning | BOI | Gooding, Jerome, Twin Falls | 57 min |
| Sep 4, 7:10 PM MDT | Severe Thunderstorm Warning | PIH | Lincoln | 65 min |
| Sep 5, 2:02 PM MDT | Severe Thunderstorm Warning | BOI | Canyon, Owyhee | 43 min |
| Sep 5, 2:45 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Owyhee | 60 min |
| Sep 5, 3:43 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Owyhee | 62 min |
| Sep 5, 4:11 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Gem, Payette, Valley, Washington | 64 min |
| Sep 5, 4:44 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 46 min |
| Sep 5, 4:52 PM MDT | Severe Thunderstorm Warning | BOI | Adams, Gem, Valley, Washington | 38 min |
| Sep 5, 5:05 PM MDT | Severe Thunderstorm Warning | BOI | Elmore, Gooding, Owyhee, Twin Falls | 40 min |
| Sep 5, 5:10 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Valley | 35 min |
| Sep 5, 5:23 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 37 min |
| Sep 5, 5:27 PM MDT | Severe Thunderstorm Warning | BOI | Adams, Valley | 48 min |
| Sep 5, 5:27 PM MDT | Severe Thunderstorm Warning | PIH | Butte, Clark | 48 min |
| Sep 5, 5:55 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 50 min |
| Sep 5, 6:14 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 46 min |
| Sep 15, 9:05 PM MDT | Severe Thunderstorm Warning | OTX | Latah | 40 min |
| Sep 15, 9:43 PM MDT | Severe Thunderstorm Warning | OTX | Benewah, Kootenai, Latah | 62 min |
| Sep 15, 10:40 PM MDT | Severe Thunderstorm Warning | OTX | Bonner, Boundary, Kootenai | 80 min |
| Sep 16, 7:46 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Minidoka, Power | 44 min |
| Sep 17, 1:02 AM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Fremont, Jefferson, Madison, Teton | 43 min |
| Sep 17, 1:48 AM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Fremont, Jefferson, Madison, Teton | 42 min |
| Sep 17, 1:44 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson | 46 min |
| Sep 17, 4:10 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Oneida, Power | 50 min |
| Sep 17, 4:18 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Power | 42 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bingham County22
- Power County17
- Bannock County15
- Bonneville County15
- Fremont County13
- Jefferson County12
- Madison County11
- Clark County11
- Butte County9
- Owyhee County9
- Cassia County8
- Caribou County8
- Twin Falls County8
- Blaine County7
- Minidoka County7
- Jerome County7
- Teton County7
- Elmore County6
- Idaho County6
- Lincoln County6
- Boise County5
- Canyon County5
- Gooding County5
- Gem County4
- Oneida County4
- Ada County4
- Latah County4
- Kootenai County4
- Valley County4
- Payette County3
- Camas County3
- Clearwater County3
- Boundary County3
- Adams County3
- Washington County3
- Shoshone County3
- Benewah County3
- Bonner County3
- Lemhi County2
- Bear Lake County2
4 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20122014
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.