National Weather ServiceIdahoSevere Thunderstorm WarningArchive to October 1, 2026
Severe Thunderstorm Warnings in Idaho
The National Weather Service issued 72 severe thunderstorm warnings for Idaho in 2025 and 92 a year on average in 2008-2025; in 2021-2025 it had the 40th most of any state. 2026 through September: 111, 24% above the average of 90 for those months in 2008-2025. Bingham was covered most often (332 times since 2008).
How many severe thunderstorm warnings does Idaho get?
Every severe thunderstorm warning that covered part of Idaho. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 111 |
| 2025 | 72 |
| 2024 | 86 |
| 2023 | 94 |
| 2022 | 144 |
| 2021 | 38 |
| 2020 | 91 |
| 2019 | 84 |
| 2018 | 91 |
| 2017 | 53 |
| 2016 | 68 |
| 2015 | 127 |
| 2014 | 106 |
| 2013 | 113 |
| 2012 | 74 |
| 2011 | 67 |
| 2010 | 123 |
| 2009 | 130 |
| 2008 | 93 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Idaho get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Idaho?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Bingham | 332 | 69 | September 18, 2026 |
| Power | 264 | 65 | September 18, 2026 |
| Bonneville | 254 | 46 | September 18, 2026 |
| Bannock | 232 | 68 | September 18, 2026 |
| Jefferson | 185 | 30 | September 18, 2026 |
| Cassia | 182 | 44 | August 24, 2026 |
| Owyhee | 180 | 48 | August 15, 2026 |
| Caribou | 162 | 51 | September 18, 2026 |
| Butte | 150 | 27 | September 17, 2026 |
| Blaine | 145 | 25 | September 17, 2026 |
| Fremont | 132 | 20 | September 17, 2026 |
| Elmore | 131 | 29 | August 15, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest severe thunderstorm warnings for Idaho in AreaZine's record
NWS PocatelloWarningSeptember 17, 2026
Severe Thunderstorm Warning: Bannock, Bingham, Caribou and 1 more, ID
Expired 11:15 p.m. MDT, September 17, 2026
NWS PocatelloWarningSeptember 17, 2026
Severe Thunderstorm Warning: Bingham, ID
Expired 10:15 p.m. MDT, September 17, 2026
NWS PocatelloWarningSeptember 17, 2026
Severe Thunderstorm Warning: Bingham, Butte and Jefferson, ID
Expired 3:30 p.m. MDT, September 17, 2026
NWS PocatelloWarningSeptember 17, 2026
Severe Thunderstorm Warning: Oneida and Power, ID
Expired 2:15 p.m. MDT, September 17, 2026
NWS PocatelloWarningAugust 22, 2026
Severe Thunderstorm Warning: Bingham, Blaine, Bonneville and 3 more, ID
Expired 7:00 p.m. MDT, August 22, 2026
NWS PocatelloWarningAugust 22, 2026
Severe Thunderstorm Warning: Bannock, Bingham, Caribou and 1 more, ID
Expired 3:15 p.m. MDT, August 22, 2026
NWS PocatelloWarningAugust 15, 2026
Severe Thunderstorm Warning: Bingham, Blaine, Bonneville and 2 more, ID
Expired 9:45 p.m. MDT, August 15, 2026
NWS MissoulaWarningAugust 15, 2026
Severe Thunderstorm Warning: Clearwater and Idaho County, ID
Expired 6:30 p.m. MDT, August 15, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a severe thunderstorm warning?
A severe thunderstorm warning means a storm is producing, or is about to produce, hail one inch across or larger and/or winds of 58 mph or more. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Idaho.