Alert archive / Idaho / Jefferson County
Weather alerts in Jefferson County, Idaho, 2022
127 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 127
- Warnings
- 37
- Watches
- 11
- Advisories
- 54
- Busiest month
- May19 alerts
- Busiest day
- August 13, 20227 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jefferson County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 6 | 50% | 17 | 59% | 27 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Pocatello, ID: severe thunderstorm warnings | 58 | 15 | 74% | 84 | 36% | 21 min |
| NWS Pocatello, ID: flash flood warnings | 5 | 3 | 40% | 14 | 86% | 15 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 |
|---|---|---|---|
| Dec 31, 6:13 PM MST | Winter Weather Advisory | PIH | 9 hr |
| Jan 1, 1:07 PM MST | Wind Chill Warning | PIH | 22 hr |
| Jan 2, 1:55 PM MST | Winter Weather Advisory | PIH | 47 hr |
| Jan 4, 2:34 PM MST | Winter Weather Advisory | PIH | 46 hr |
| Jan 14, 8:01 PM MST | Dense Fog Advisory | PIH | 14 hr |
| Jan 18, 3:38 AM MST | Dense Fog Advisory | PIH | 23 hr |
| Jan 23, 12:36 AM MST | Freezing Fog Advisory | PIH | 9 hr |
| Jan 26, 1:40 AM MST | Freezing Fog Advisory | PIH | 7 hr |
| Feb 1, 8:48 AM MST | Special Weather Statement | PIH | 3 hr |
| Feb 6, 8:31 AM MST | Special Weather Statement | PIH | 3 hr |
| Feb 10, 8:26 PM MST | Dense Fog Advisory | PIH | 17 hr |
| Feb 11, 7:56 PM MST | Dense Fog Advisory | PIH | 14 hr |
| Feb 17, 5:01 AM MST | Dense Fog Advisory | PIH | 6 hr |
| Feb 21, 1:06 PM MST | Wind Chill Warning | PIH | 23 hr |
| Feb 21, 1:06 PM MST | Wind Chill Warning | PIH | 48 hr |
| Mar 7, 3:09 AM MST | Winter Weather Advisory | PIH | 56 hr |
| Apr 1, 2:15 PM MDT | Wind Advisory | PIH | 30 hr |
| Apr 3, 3:44 AM MDT | High Wind Watch | PIH | 10 hr |
| Apr 3, 2:10 PM MDT | High Wind Warning | PIH | 54 hr |
| Apr 5, 3:44 AM MDT | Wind Advisory | PIH | 17 hr |
| Apr 8, 3:24 AM MDT | Wind Advisory | PIH | 42 hr |
| Apr 10, 12:54 PM MDT | Winter Weather Advisory | PIH | 62 hr |
| Apr 10, 4:00 PM MDT | Wind Advisory | PIH | 5 hr |
| Apr 12, 1:55 AM MDT | Winter Weather Advisory | PIH | 25 hr |
| Apr 13, 8:54 PM MDT | Special Weather Statement | PIH | 81 min |
| Apr 16, 6:43 PM MDT | Wind Advisory | PIH | 2 hr |
| May 2, 5:33 PM MDT | Severe Thunderstorm Warning | PIH | 27 min |
| May 2, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| May 2, 6:45 PM MDT | Special Weather Statement | PIH | 30 min |
| May 3, 12:11 AM MDT | Special Weather Statement | PIH | 2 hr |
| May 6, 2:00 PM MDT | Wind Advisory | PIH | 31 hr |
| May 9, 8:55 AM MDT | Wind Advisory | PIH | 11 hr |
| May 11, 1:15 PM MDT | Wind Advisory | PIH | 24 hr |
| May 12, 1:08 PM MDT | Special Weather Statement | PIH | 82 min |
| May 12, 2:43 PM MDT | Special Weather Statement | PIH | 92 min |
| May 13, 3:01 AM MDT | Wind Advisory | PIH | 18 hr |
| May 14, 2:24 AM MDT | Wind Advisory | PIH | 18 hr |
| May 17, 1:35 PM MDT | High Wind Watch | PIH | 25 hr |
| May 18, 4:05 AM MDT | Wind Advisory | PIH | 17 hr |
| May 18, 3:02 PM MDT | Wind Advisory | PIH | 30 hr |
| May 19, 2:28 PM MDT | Freeze Warning | PIH | 19 hr |
| May 20, 1:37 PM MDT | Freeze Warning | PIH | 19 hr |
| May 22, 1:53 PM MDT | Frost Advisory | PIH | 19 hr |
| May 22, 8:29 PM MDT | Special Weather Statement | PIH | 31 min |
| May 26, 5:59 PM MDT | Special Weather Statement | PIH | 61 min |
| Jun 11, 2:13 AM MDT | Wind Advisory | PIH | 18 hr |
| Jun 12, 2:15 PM MDT | Wind Advisory | PIH | 31 hr |
| Jun 14, 1:57 AM MDT | Wind Advisory | PIH | 19 hr |
| Jun 14, 1:42 PM MDT | Frost Advisory | PIH | 18 hr |
| Jun 15, 12:06 PM MDT | River Flood Advisory | PIH | 24 hr |
| Jun 16, 1:50 PM MDT | Wind Advisory | PIH | 29 hr |
| Jun 17, 12:11 PM MDT | High Wind Warning | PIH | 7 hr |
| Jun 29, 3:24 AM MDT | Wind Advisory | PIH | 17 hr |
| Jul 2, 3:58 PM MDT | Severe Thunderstorm Warning | PIH | 32 min |
| Jul 2, 4:39 PM MDT | Severe Thunderstorm Warning | PIH | 36 min |
| Jul 2, 4:54 PM MDT | Severe Thunderstorm Warning | PIH | 36 min |
| Jul 2, 5:07 PM MDT | Severe Thunderstorm Warning | PIH | 23 min |
| Jul 2, 5:29 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| Jul 2, 6:18 PM MDT | Special Weather Statement | PIH | 57 min |
| Jul 12, 3:49 AM MDT | Heat Advisory | PIH | 41 hr |
| Jul 13, 3:31 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 3:02 AM MDT | Fire Weather Watch | PIH | 12 hr |
| Jul 17, 1:32 PM MDT | Wind Advisory | PIH | 30 hr |
| Jul 17, 2:34 PM MDT | Red Flag Warning | PIH | 30 hr |
| Jul 20, 2:19 PM MDT | Fire Weather Watch | PIH | 23 hr |
| Jul 21, 1:02 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 29, 5:31 PM MDT | Special Weather Statement | PIH | 59 min |
| Jul 30, 1:55 PM MDT | Heat Advisory | PIH | 55 hr |
| Aug 6, 3:55 PM MDT | Special Weather Statement | PIH | 50 min |
| Aug 11, 12:04 AM MDT | Special Weather Statement | PIH | 56 min |
| Aug 12, 9:37 PM MDT | Special Weather Statement | PIH | 38 min |
| Aug 12, 10:18 PM MDT | Special Weather Statement | PIH | 42 min |
| Aug 13, 1:46 AM MDT | Special Weather Statement | PIH | 29 min |
| Aug 13, 3:09 PM MDT | Severe Thunderstorm Warning | PIH | 66 min |
| Aug 13, 3:22 PM MDT | Severe Thunderstorm Warning | PIH | 34 min |
| Aug 13, 3:53 PM MDT | Special Weather Statement | PIH | 82 min |
| Aug 13, 4:15 PM MDT | Severe Thunderstorm Warning | PIH | 45 min |
| Aug 17, 2:57 AM MDT | Heat Advisory | PIH | 18 hr |
| Aug 19, 5:14 PM MDT | Severe Thunderstorm Warning | PIH | 39 min |
| Aug 19, 7:06 PM MDT | Special Weather Statement | PIH | 54 min |
| Aug 19, 8:11 PM MDT | Special Weather Statement | PIH | 64 min |
| Aug 22, 4:55 PM MDT | Special Weather Statement | PIH | 35 min |
| Aug 24, 4:59 PM MDT | Special Weather Statement | PIH | 31 min |
| Aug 26, 1:46 PM MDT | Red Flag Warning | PIH | 30 hr |
| Aug 26, 1:47 PM MDT | Wind Advisory | PIH | 30 hr |
| Aug 26, 4:29 PM MDT | Special Weather Statement | PIH | 46 min |
| Aug 29, 1:53 PM MDT | Heat Advisory | PIH | 9 days |
| Sep 2, 1:18 PM MDT | Fire Weather Watch | PIH | 23 hr |
| Sep 3, 11:54 AM MDT | Red Flag Warning | PIH | 33 hr |
| Sep 6, 2:01 PM MDT | Fire Weather Watch | PIH | 23 hr |
| Sep 7, 12:44 PM MDT | Red Flag Warning | PIH | 32 hr |
| Sep 8, 1:43 PM MDT | Wind Advisory | PIH | 7 hr |
| Sep 15, 5:11 PM MDT | Special Weather Statement | PIH | 49 min |
| Sep 21, 12:40 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 21, 2:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Sep 21, 4:44 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| Sep 22, 1:51 AM MDT | Wind Advisory | PIH | 18 hr |
| Oct 11, 1:57 AM MDT | Freeze Warning | PIH | 31 hr |
| Oct 12, 2:00 PM MDT | Freeze Warning | PIH | 19 hr |
| Oct 13, 1:48 PM MDT | Freeze Warning | PIH | 19 hr |
| Oct 14, 1:16 PM MDT | Freeze Warning | PIH | 21 hr |
| Oct 20, 1:12 PM MDT | Wind Advisory | PIH | 31 hr |
| Oct 22, 10:14 AM MDT | Wind Advisory | PIH | 8 hr |
| Oct 31, 2:43 PM MDT | High Wind Watch | PIH | 12 hr |
| Nov 1, 3:03 AM MDT | High Wind Warning | PIH | 27 hr |
| Nov 2, 3:48 AM MDT | Wind Advisory | PIH | 8 hr |
| Nov 3, 1:20 PM MDT | High Wind Warning | PIH | 51 hr |
| Nov 6, 12:22 PM MST | Winter Weather Advisory | PIH | 4 days |
| Nov 9, 7:28 AM MST | Snow Squall Warning | PIH | 62 min |
| Nov 14, 6:43 AM MST | Freezing Fog Advisory | PIH | 5 hr |
| Nov 15, 7:33 AM MST | Freezing Fog Advisory | PIH | 4 hr |
| Nov 16, 1:40 PM MST | Wind Chill Watch | PIH | 24 hr |
| Nov 17, 1:21 PM MST | Wind Chill Advisory | PIH | 17 min |
| Nov 17, 1:38 PM MST | Wind Chill Warning | PIH | 19 hr |
| Nov 30, 3:21 AM MST | Winter Weather Advisory | PIH | 55 hr |
| Dec 8, 12:17 PM MST | Winter Storm Watch | PIH | 25 hr |
| Dec 9, 1:05 PM MST | Winter Weather Advisory | PIH | 4 days |
| Dec 18, 1:30 PM MST | Wind Chill Warning | PIH | 21 hr |
| Dec 19, 2:39 PM MST | Winter Storm Warning | PIH | 54 hr |
| Dec 19, 8:08 PM MST | Winter Storm Watch | PIH | 16 hr |
| Dec 20, 11:54 AM MST | Wind Chill Warning | PIH | 48 hr |
| Dec 20, 11:54 AM MST | Winter Weather Advisory | PIH | 33 hr |
| Dec 22, 12:09 PM MST | Wind Chill Warning | PIH | 3 hr |
| Dec 22, 3:05 PM MST | Wind Chill Warning | PIH | 17 hr |
| Dec 24, 1:13 PM MST | Winter Weather Advisory | PIH | 13 hr |
| Dec 25, 1:37 PM MST | Freezing Fog Advisory | PIH | 22 hr |
| Dec 26, 7:37 PM MST | Dense Fog Advisory | PIH | 9 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 | 12 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 23 |
| Flooding | |
| River Flood Advisory | 1 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 6 |
| Wind Chill Warning | 8 |
| Wind Chill Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 24 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Freezing Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.