Alert archive / Idaho / Bonneville County
Weather alerts in Bonneville County, Idaho, 2021
160 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bonneville County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 160
- Warnings
- 40
- Watches
- 19
- Advisories
- 66
- Busiest month
- July31 alerts
- Busiest day
- June 30, 20214 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bonneville County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 1 | 67% | 2 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: severe thunderstorm warnings | 25 | 7 | 72% | 72 | 18% | 7 min |
| NWS Pocatello, ID: flash flood warnings | 23 | 8 | 65% | 15 | 53% | 55 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 | Lasted |
|---|---|---|---|
| Jan 3, 2:00 PM MST | Winter Storm Warning | PIH | 43 hr |
| Jan 3, 2:00 PM MST | Winter Weather Advisory | PIH | 43 hr |
| Jan 5, 3:30 AM MST | Winter Weather Advisory | PIH | 5 hr |
| Jan 11, 1:29 PM MST | Winter Weather Advisory | PIH | 51 hr |
| Jan 13, 2:30 AM MST | Wind Advisory | PIH | 14 hr |
| Jan 13, 4:36 PM MST | Wind Advisory | PIH | 3 hr |
| Jan 25, 2:30 PM MST | Winter Storm Watch | PIH | 13 hr |
| Jan 25, 2:30 PM MST | Winter Weather Advisory | PIH | 5 days |
| Jan 26, 3:26 AM MST | Winter Storm Warning | PIH | 4 days |
| Jan 31, 2:34 AM MST | Freezing Fog Advisory | PIH | 6 hr |
| Feb 3, 4:11 AM MST | Special Weather Statement | PIH | 94 min |
| Feb 3, 5:52 AM MST | Special Weather Statement | PIH | 38 min |
| Feb 3, 6:29 AM MST | Special Weather Statement | PIH | 61 min |
| Feb 4, 3:29 AM MST | Winter Weather Advisory | PIH | 40 hr |
| Feb 6, 4:44 AM MST | Winter Weather Advisory | PIH | 37 hr |
| Feb 6, 4:51 AM MST | Wind Advisory | PIH | 15 hr |
| Feb 7, 4:30 AM MST | Wind Advisory | PIH | 14 hr |
| Feb 9, 1:43 PM MST | Winter Storm Watch | PIH | 24 hr |
| Feb 10, 3:12 AM MST | Winter Weather Advisory | PIH | 3 days |
| Feb 10, 1:38 PM MST | Winter Storm Warning | PIH | 3 days |
| Feb 10, 5:48 PM MST | Special Weather Statement | PIH | 3 hr |
| Feb 10, 10:27 PM MST | Special Weather Statement | PIH | 4 hr |
| Feb 12, 3:29 AM MST | Winter Weather Advisory | PIH | 35 hr |
| Feb 14, 2:01 PM MST | Winter Weather Advisory | PIH | 39 hr |
| Feb 17, 12:43 PM MST | Winter Weather Advisory | PIH | 45 hr |
| Feb 19, 3:20 AM MST | Winter Weather Advisory | PIH | 41 hr |
| Feb 20, 10:08 AM MST | Special Weather Statement | PIH | 3 hr |
| Feb 22, 3:10 AM MST | Winter Weather Advisory | PIH | 41 hr |
| Feb 22, 1:13 PM MST | Wind Advisory | PIH | 24 hr |
| Feb 24, 1:53 PM MST | Winter Storm Watch | PIH | 13 hr |
| Feb 25, 3:13 AM MST | Winter Storm Warning | PIH | 53 hr |
| Feb 25, 3:13 AM MST | Winter Weather Advisory | PIH | 53 hr |
| Feb 25, 1:57 PM MST | Wind Advisory | PIH | 29 hr |
| Mar 6, 2:12 PM MST | Wind Advisory | PIH | 3 hr |
| Mar 19, 1:45 PM MDT | Winter Weather Advisory | PIH | 38 hr |
| Mar 27, 2:01 PM MDT | High Wind Watch | PIH | 13 hr |
| Mar 28, 3:24 AM MDT | High Wind Warning | PIH | 33 hr |
| Mar 29, 12:33 PM MDT | Wind Advisory | PIH | 3 hr |
| Apr 7, 3:24 AM MDT | Wind Advisory | PIH | 42 hr |
| Apr 8, 1:02 PM MDT | High Wind Warning | PIH | 8 hr |
| Apr 9, 1:25 AM MDT | High Wind Watch | PIH | 11 hr |
| Apr 9, 1:25 AM MDT | Wind Advisory | PIH | 45 hr |
| Apr 9, 12:41 PM MDT | High Wind Warning | PIH | 33 hr |
| Apr 12, 2:52 AM MDT | Wind Advisory | PIH | 57 hr |
| Apr 18, 2:48 PM MDT | Wind Advisory | PIH | 30 hr |
| May 1, 5:14 PM MDT | Wind Advisory | PIH | 4 hr |
| May 4, 1:08 PM MDT | Frost Advisory | PIH | 20 hr |
| May 7, 12:04 PM MDT | Wind Advisory | PIH | 9 hr |
| May 8, 3:26 AM MDT | Freeze Watch | PIH | 10 hr |
| May 8, 1:34 PM MDT | Freeze Warning | PIH | 19 hr |
| May 9, 1:51 PM MDT | Frost Advisory | PIH | 19 hr |
| May 10, 3:17 AM MDT | Freeze Watch | PIH | 26 min |
| May 10, 3:43 AM MDT | Freeze Warning | PIH | 29 hr |
| May 10, 7:41 PM MDT | Special Weather Statement | PIH | 64 min |
| May 11, 4:09 AM MDT | Frost Advisory | PIH | 29 hr |
| May 24, 3:22 AM MDT | Wind Advisory | PIH | 18 hr |
| May 25, 1:50 PM MDT | Special Weather Statement | PIH | 55 min |
| May 25, 5:55 PM MDT | Special Weather Statement | PIH | 65 min |
| May 26, 10:25 AM MDT | Frost Advisory | PIH | 22 hr |
| May 28, 12:56 AM MDT | Wind Advisory | PIH | 20 hr |
| May 28, 1:56 PM MDT | Frost Advisory | PIH | 11 hr |
| Jun 5, 3:30 AM MDT | Wind Advisory | PIH | 18 hr |
| Jun 9, 3:34 AM MDT | Wind Advisory | PIH | 40 hr |
| Jun 10, 2:26 AM MDT | Frost Advisory | PIH | 31 hr |
| Jun 15, 9:29 AM MDT | Red Flag Warning | PIH | 12 hr |
| Jun 17, 1:18 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Jun 18, 1:31 PM MDT | Wind Advisory | PIH | 31 hr |
| Jun 18, 1:41 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jun 22, 2:44 PM MDT | Fire Weather Watch | PIH | 11 hr |
| Jun 23, 1:49 AM MDT | Red Flag Warning | PIH | 17 hr |
| Jun 23, 7:13 PM MDT | Red Flag Warning | PIH | 26 hr |
| Jun 24, 2:48 PM MDT | Excessive Heat Watch | PIH | 47 hr |
| Jun 25, 2:15 AM MDT | Red Flag Warning | PIH | 19 hr |
| Jun 26, 2:15 PM MDT | Heat Advisory | PIH | 8 days |
| Jun 29, 4:59 PM MDT | Special Weather Statement | PIH | 46 min |
| Jun 29, 6:07 PM MDT | Special Weather Statement | PIH | 53 min |
| Jun 29, 7:05 PM MDT | Special Weather Statement | PIH | 40 min |
| Jun 29, 7:43 PM MDT | Severe Thunderstorm Warning | PIH | 33 min |
| Jun 30, 2:12 PM MDT | Red Flag Warning | PIH | 31 hr |
| Jul 1, 4:19 PM MDT | Special Weather Statement | PIH | 41 min |
| Jul 2, 3:14 AM MDT | Red Flag Warning | PIH | 17 hr |
| Jul 4, 2:56 AM MDT | Red Flag Warning | PIH | 23 hr |
| Jul 5, 2:02 AM MDT | Red Flag Warning | PIH | 19 hr |
| Jul 5, 12:44 PM MDT | Special Weather Statement | PIH | 61 min |
| Jul 5, 2:02 PM MDT | Heat Advisory | PIH | 3 days |
| Jul 6, 2:28 AM MDT | Fire Weather Watch | PIH | 35 hr |
| Jul 7, 1:18 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 7, 5:14 PM MDT | Special Weather Statement | PIH | 46 min |
| Jul 8, 2:59 AM MDT | Red Flag Warning | PIH | 42 hr |
| Jul 9, 12:40 PM MDT | Heat Advisory | PIH | 3 days |
| Jul 10, 1:23 PM MDT | Fire Weather Watch | PIH | 14 hr |
| Jul 11, 3:11 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 12, 1:39 PM MDT | Fire Weather Watch | PIH | 11 hr |
| Jul 13, 1:05 AM MDT | Red Flag Warning | PIH | 21 hr |
| Jul 15, 3:44 PM MDT | Severe Thunderstorm Warning | PIH | 31 min |
| Jul 16, 3:29 AM MDT | Excessive Heat Watch | PIH | 24 hr |
| Jul 17, 3:44 AM MDT | Heat Advisory | PIH | 41 hr |
| Jul 17, 4:20 PM MDT | Special Weather Statement | PIH | 40 min |
| Jul 18, 2:17 AM MDT | Fire Weather Watch | PIH | 24 hr |
| Jul 19, 1:53 AM MDT | Red Flag Warning | PIH | 43 hr |
| Jul 20, 3:35 PM MDT | Special Weather Statement | PIH | 55 min |
| Jul 20, 4:34 PM MDT | Special Weather Statement | PIH | 56 min |
| Jul 22, 2:00 AM MDT | Red Flag Warning | PIH | 19 hr |
| Jul 22, 3:18 PM MDT | Special Weather Statement | PIH | 12 min |
| Jul 24, 2:03 PM MDT | Heat Advisory | PIH | 55 hr |
| Jul 28, 12:42 PM MDT | Special Weather Statement | PIH | 48 min |
| Jul 30, 12:55 PM MDT | Flash Flood Watch | PIH | 3 days |
| Jul 30, 3:48 PM MDT | Areal Flood Advisory | PIH | 117 min |
| Jul 31, 8:46 AM MDT | Areal Flood Advisory | PIH | 119 min |
| Jul 31, 3:20 PM MDT | Special Weather Statement | PIH | 25 min |
| Aug 2, 12:25 PM MDT | Areal Flood Advisory | PIH | 2 hr |
| Aug 2, 12:37 PM MDT | Special Weather Statement | PIH | 53 min |
| Aug 2, 1:35 PM MDT | Areal Flood Advisory | PIH | 115 min |
| Aug 5, 6:38 PM MDT | Severe Thunderstorm Warning | PIH | 37 min |
| Aug 6, 2:20 PM MDT | Special Weather Statement | PIH | 40 min |
| Aug 17, 3:30 PM MDT | Special Weather Statement | PIH | 30 min |
| Aug 21, 2:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 21, 11:20 PM MDT | Special Weather Statement | PIH | 55 min |
| Aug 22, 12:20 AM MDT | Special Weather Statement | PIH | 55 min |
| Aug 29, 1:10 PM MDT | Red Flag Warning | PIH | 32 hr |
| Aug 31, 12:49 AM MDT | Red Flag Warning | PIH | 20 hr |
| Sep 5, 1:28 PM MDT | Red Flag Warning | PIH | 32 hr |
| Sep 10, 2:47 AM MDT | Red Flag Warning | PIH | 19 hr |
| Sep 10, 4:34 PM MDT | Special Weather Statement | PIH | 26 min |
| Sep 14, 1:25 PM MDT | Wind Advisory | PIH | 32 hr |
| Sep 14, 1:28 PM MDT | Red Flag Warning | PIH | 32 hr |
| Sep 16, 1:35 PM MDT | Red Flag Warning | PIH | 55 hr |
| Sep 17, 1:44 PM MDT | Wind Advisory | PIH | 31 hr |
| Sep 18, 3:06 PM MDT | Special Weather Statement | PIH | 54 min |
| Sep 19, 2:11 AM MDT | Frost Advisory | PIH | 31 hr |
| Sep 20, 12:50 PM MDT | Frost Advisory | PIH | 20 hr |
| Sep 21, 1:32 PM MDT | Frost Advisory | PIH | 19 hr |
| Sep 27, 5:01 AM MDT | Freeze Watch | PIH | 24 hr |
| Sep 27, 2:53 PM MDT | Wind Advisory | PIH | 27 hr |
| Sep 28, 4:35 AM MDT | Freeze Warning | PIH | 29 hr |
| Sep 29, 9:58 AM MDT | Freeze Warning | PIH | 23 hr |
| Oct 7, 4:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Oct 9, 1:38 PM MDT | Winter Weather Advisory | PIH | 69 hr |
| Oct 10, 3:05 AM MDT | Winter Storm Warning | PIH | 55 hr |
| Oct 27, 2:24 AM MDT | Wind Advisory | PIH | 15 hr |
| Nov 15, 2:15 AM MST | Wind Advisory | PIH | 40 hr |
| Dec 3, 7:50 PM MST | Dense Fog Advisory | PIH | 13 hr |
| Dec 4, 3:04 AM MST | High Wind Watch | PIH | 11 hr |
| Dec 4, 1:41 PM MST | Wind Advisory | PIH | 27 hr |
| Dec 10, 2:24 PM MST | Winter Weather Advisory | PIH | 5 days |
| Dec 15, 4:27 AM MST | Special Weather Statement | PIH | 3 hr |
| Dec 15, 1:55 PM MST | Winter Weather Advisory | PIH | 41 hr |
| Dec 21, 2:21 PM MST | Winter Storm Watch | PIH | 23 hr |
| Dec 22, 1:26 PM MST | Winter Storm Warning | PIH | 6 days |
| Dec 22, 1:26 PM MST | Winter Weather Advisory | PIH | 6 days |
| Dec 24, 2:03 PM MST | Special Weather Statement | PIH | 117 min |
| Dec 24, 9:22 PM MST | Special Weather Statement | PIH | 83 min |
| Dec 26, 11:59 AM MST | Special Weather Statement | PIH | 76 min |
| Dec 26, 12:40 PM MST | Snow Squall Warning | PIH | 50 min |
| Dec 26, 1:34 PM MST | Snow Squall Warning | PIH | 26 min |
| Dec 27, 1:00 PM MST | Wind Chill Warning | PIH | 21 hr |
| Dec 29, 2:12 AM MST | Winter Weather Advisory | PIH | 50 hr |
| Dec 29, 1:10 PM MST | Winter Weather Advisory | PIH | 39 hr |
| Dec 30, 8:07 PM MST | Special Weather Statement | PIH | 83 min |
| Dec 31, 4:01 AM MST | Winter Weather Advisory | PIH | 14 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 | 3 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 33 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Snow Squall Warning | 2 |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 21 |
| Heat | |
| Excessive Heat Watch | 2 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 4 |
| Wind Chill Warning | 1 |
| Freeze Watch | 3 |
| Frost Advisory | 9 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 3 |
| Wind Advisory | 25 |
| Fire | |
| Red Flag Warning | 21 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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. Warning verification from the Mesonet's Cow. Rebuilt daily.