Alert archive / Idaho / 2021
Weather alerts in Idaho, May 2021
108 weather alerts in May 2021, 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 May 2021. Tap one for its archive.
- Alerts
- 108
- Warnings
- 5
- Watches
- 3
- Advisories
- 24
- Busiest day
- May 25, 202118 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 |
|---|---|---|---|---|
| May 1, 3:12 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 18 hr |
| May 1, 2:51 PM MDT | Special Weather Statement | BOI | Canyon | 39 min |
| May 1, 3:13 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Boise, Canyon, Elmore, Owyhee | 47 min |
| May 1, 3:39 PM MDT | Special Weather Statement | BOI | Elmore | 51 min |
| May 1, 3:41 PM MDT | Special Weather Statement | BOI | Elmore | 49 min |
| May 1, 4:28 PM MDT | Special Weather Statement | BOI | Gooding, Twin Falls | 47 min |
| May 1, 4:29 PM MDT | Special Weather Statement | BOI | Gooding, Twin Falls | 46 min |
| May 1, 5:14 PM MDT | Wind Advisory | PIH | Bingham, Bonneville, Butte, Fremont, Jefferson, Madison | 4 hr |
| May 1, 5:27 PM MDT | Special Weather Statement | BOI | Jerome | 33 min |
| May 2, 7:36 AM MDT | Special Weather Statement | PIH | Power | 4 hr |
| May 2, 1:18 PM MDT | Special Weather Statement | PIH | Bingham | 57 min |
| May 2, 2:14 PM MDT | Special Weather Statement | PIH | Lincoln | 91 min |
| May 3, 1:28 PM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 32 hr |
| May 4, 1:08 PM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 20 hr |
| May 7, 3:10 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 9 hr |
| May 7, 12:04 PM MDT | Wind Advisory | PIH | Bannock, Bingham, Bonneville, Butte, Fremont, Jefferson and 2 more | 9 hr |
| May 7, 2:25 PM MDT | Mesoscale Discussion | SPC | Clark | 2 hr |
| May 7, 6:23 PM MDT | Special Weather Statement | PIH | Bear Lake | 82 min |
| May 8, 3:26 AM MDT | Freeze Watch | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 6 more | 10 hr |
| May 8, 3:26 AM MDT | Wind Advisory | PIH | Bannock, Bingham, Blaine, Cassia, Minidoka, Power | 10 hr |
| May 8, 1:34 PM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Cassia, Minidoka, Power | 19 hr |
| May 8, 1:34 PM MDT | Freeze Warning | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 19 hr |
| May 9, 1:51 PM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 6 more | 19 hr |
| May 10, 3:17 AM MDT | Frost Advisory | PIH | Blaine, Cassia, Minidoka, Power | 30 hr |
| May 10, 3:17 AM MDT | Freeze Watch | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 26 min |
| May 10, 3:43 AM MDT | Freeze Warning | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 29 hr |
| May 10, 11:55 AM MDT | Special Weather Statement | PIH | Power | 50 min |
| May 10, 4:15 PM MDT | Special Weather Statement | PIH | Jefferson | 60 min |
| May 10, 4:30 PM MDT | Special Weather Statement | PIH | Fremont | 60 min |
| May 10, 6:39 PM MDT | Special Weather Statement | PIH | Caribou | 51 min |
| May 10, 7:41 PM MDT | Special Weather Statement | PIH | Bonneville | 64 min |
| May 11, 4:09 AM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 6 more | 29 hr |
| May 13, 3:11 PM MDT | Special Weather Statement | PIH | Jefferson | 49 min |
| May 13, 5:35 PM MDT | Special Weather Statement | PIH | Bingham | 55 min |
| May 13, 6:35 PM MDT | Special Weather Statement | PIH | Clark | 55 min |
| May 14, 2:16 PM MDT | Special Weather Statement | PIH | Oneida | 44 min |
| May 14, 3:17 PM MDT | Special Weather Statement | PIH | Cassia | 43 min |
| May 14, 3:22 PM MDT | Special Weather Statement | PIH | Franklin | 53 min |
| May 14, 4:15 PM MDT | Special Weather Statement | PIH | Twin Falls | 60 min |
| May 14, 5:51 PM MDT | Special Weather Statement | PIH | Minidoka | 39 min |
| May 14, 5:55 PM MDT | Special Weather Statement | PIH | Blaine | 65 min |
| May 15, 5:14 PM MDT | Special Weather Statement | PIH | Bear Lake | 46 min |
| May 16, 3:05 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 12 hr |
| May 16, 3:07 PM MDT | Special Weather Statement | PIH | Caribou | 38 min |
| May 16, 3:37 PM MDT | Special Weather Statement | PIH | Bear Lake | 38 min |
| May 16, 4:17 PM MDT | Special Weather Statement | SLC | Oneida | 43 min |
| May 16, 4:58 PM MDT | Special Weather Statement | PIH | Bannock, Franklin, Oneida | 92 min |
| May 16, 5:06 PM MDT | Special Weather Statement | PIH | Cassia | 84 min |
| May 16, 6:29 PM MDT | Special Weather Statement | PIH | Cassia | 91 min |
| May 16, 6:31 PM MDT | Special Weather Statement | PIH | Power | 89 min |
| May 16, 6:54 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Blaine, Cassia, Lincoln, Minidoka and 1 more | 66 min |
| May 16, 8:21 PM MDT | Special Weather Statement | BOI | Jerome | 39 min |
| May 17, 2:02 PM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 30 hr |
| May 17, 5:37 PM MDT | Special Weather Statement | PIH | Bear Lake | 38 min |
| May 18, 3:41 AM MDT | Freeze Warning | OTX | Bonner, Boundary, Kootenai | 29 hr |
| May 18, 2:37 PM MDT | Winter Weather Advisory | MSO | Clearwater, Idaho, Lemhi | 67 hr |
| May 20, 10:59 AM MDT | Special Weather Statement | PIH | Bear Lake | 91 min |
| May 21, 3:03 PM MDT | Special Weather Statement | PIH | Bear Lake | 57 min |
| May 21, 4:26 PM MDT | Special Weather Statement | PIH | Twin Falls | 34 min |
| May 21, 4:36 PM MDT | Special Weather Statement | RIW | Bear Lake | 24 min |
| May 22, 2:13 PM MDT | Winter Weather Advisory | MSO | Lemhi | 22 hr |
| May 22, 3:28 PM MDT | Special Weather Statement | MSO | Clearwater | 47 min |
| May 22, 5:13 PM MDT | Special Weather Statement | OTX | Benewah | 17 min |
| May 22, 5:40 PM MDT | Special Weather Statement | OTX | Benewah | 20 min |
| May 22, 6:48 PM MDT | Special Weather Statement | OTX | Kootenai | 27 min |
| May 22, 7:13 PM MDT | Special Weather Statement | OTX | Kootenai | 32 min |
| May 22, 7:45 PM MDT | Special Weather Statement | OTX | Bonner | 45 min |
| May 23, 3:30 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 17 hr |
| May 23, 5:27 PM MDT | Special Weather Statement | PIH | Bannock | 48 min |
| May 24, 3:22 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 18 hr |
| May 24, 3:22 AM MDT | Wind Advisory | PIH | Bingham, Bonneville, Butte, Fremont, Jefferson, Madison | 18 hr |
| May 24, 1:25 PM MDT | Special Weather Statement | PIH | Fremont | 35 min |
| May 24, 5:05 PM MDT | Special Weather Statement | BOI | Payette | 40 min |
| May 25, 11:58 AM MDT | Special Weather Statement | PIH | Power | 47 min |
| May 25, 12:46 PM MDT | Special Weather Statement | PIH | Bingham, Butte, Jefferson, Power | 59 min |
| May 25, 1:40 PM MDT | Special Weather Statement | PIH | Caribou | 35 min |
| May 25, 1:50 PM MDT | Special Weather Statement | PIH | Bonneville, Jefferson, Madison | 55 min |
| May 25, 2:25 PM MDT | Special Weather Statement | PIH | Custer | 80 min |
| May 25, 2:28 PM MDT | Special Weather Statement | PIH | Butte | 62 min |
| May 25, 2:35 PM MDT | Special Weather Statement | PIH | Bingham | 55 min |
| May 25, 3:39 PM MDT | Special Weather Statement | PIH | Fremont | 51 min |
| May 25, 3:46 PM MDT | Special Weather Statement | PIH | Bingham | 44 min |
| May 25, 4:05 PM MDT | Special Weather Statement | PIH | Blaine | 55 min |
| May 25, 4:25 PM MDT | Special Weather Statement | PIH | Camas | 50 min |
| May 25, 4:40 PM MDT | Special Weather Statement | PIH | Bingham, Jefferson | 50 min |
| May 25, 4:41 PM MDT | Special Weather Statement | BOI | Elmore | 49 min |
| May 25, 4:59 PM MDT | Special Weather Statement | BOI | Jerome | 31 min |
| May 25, 5:12 PM MDT | Special Weather Statement | PIH | Blaine | 48 min |
| May 25, 5:21 PM MDT | Special Weather Statement | PIH | Madison | 24 min |
| May 25, 5:31 PM MDT | Special Weather Statement | PIH | Clark | 44 min |
| May 25, 5:55 PM MDT | Special Weather Statement | PIH | Bonneville, Fremont, Madison, Teton | 65 min |
| May 25, 6:11 PM MDT | Special Weather Statement | PIH | Fremont | 49 min |
| May 25, 6:16 PM MDT | Special Weather Statement | BOI | Gooding | 59 min |
| May 25, 6:16 PM MDT | Special Weather Statement | PIH | Minidoka | 29 min |
| May 25, 7:00 PM MDT | Special Weather Statement | PIH | Power | 30 min |
| May 25, 7:19 PM MDT | Special Weather Statement | PIH | Clark, Jefferson | 56 min |
| May 25, 8:13 PM MDT | Special Weather Statement | PIH | Clark, Fremont, Jefferson | 62 min |
| May 25, 9:02 PM MDT | Special Weather Statement | PIH | Butte | 58 min |
| May 26, 10:25 AM MDT | Frost Advisory | PIH | Bannock, Bingham, Bonneville, Butte, Fremont, Jefferson and 2 more | 22 hr |
| May 26, 10:25 AM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 9 hr |
| May 26, 12:08 PM MDT | Special Weather Statement | PIH | Clark, Fremont | 82 min |
| May 26, 1:57 PM MDT | Special Weather Statement | PIH | Fremont | 63 min |
| May 26, 3:01 PM MDT | Special Weather Statement | PIH | Fremont | 44 min |
| May 27, 1:03 PM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 12 hr |
| May 28, 12:56 AM MDT | Wind Advisory | PIH | Bannock, Bingham, Bonneville, Butte, Fremont, Jefferson and 2 more | 20 hr |
| May 28, 1:56 PM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 6 more | 11 hr |
| May 31, 3:18 AM MDT | Heat Advisory | OTX | Benewah, Bonner, Boundary, Kootenai, Latah, Lewis and 2 more | 4 days |
| May 31, 2:13 PM MDT | Excessive Heat Watch | BOI | Ada, Canyon, Elmore, Gem, Gooding, Jerome and 4 more | 24 hr |
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 | 2 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 75 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 7 |
| Wind and dust | |
| Lake Wind Advisory | 9 |
| Wind Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bingham County31
- Power County30
- Bannock County25
- Fremont County22
- Jefferson County20
- Bonneville County16
- Butte County16
- Madison County16
- Blaine County15
- Minidoka County14
- Cassia County11
- Lincoln County10
- Bear Lake County7
- Clark County6
- Elmore County5
- Twin Falls County5
- Gooding County4
- Jerome County4
- Kootenai County4
- Canyon County3
- Caribou County3
- Oneida County3
- Bonner County3
- Benewah County3
- Ada County2
- Owyhee County2
- Franklin County2
- Boundary County2
- Clearwater County2
- Lemhi County2
- Payette County2
- Boise County1
- Idaho County1
- Custer County1
- Camas County1
- Teton County1
- Latah County1
- Lewis County1
- Nez Perce County1
- Shoshone County1
2 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.