Alert archive / Idaho / Elmore County
Weather alerts in Elmore County, Idaho, 2022
107 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Elmore County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 107
- Warnings
- 27
- Watches
- 14
- Advisories
- 44
- Busiest month
- August24 alerts
- Busiest day
- August 12, 202217 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Elmore County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 16 | 6 | 63% | 4 | 50% | 15 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 Boise, ID: tornado warnings | 0 | 1 | 0% | |||
| NWS Boise, ID: severe thunderstorm warnings | 61 | 15 | 75% | 40 | 63% | 23 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 1, 2:17 AM MST | Winter Storm Watch | BOI | 37 hr |
| Jan 2, 2:56 PM MST | Winter Weather Advisory | BOI | 20 hr |
| Jan 2, 2:56 PM MST | Winter Weather Advisory | BOI | 68 hr |
| Jan 3, 11:22 AM MST | Winter Storm Warning | BOI | 42 hr |
| Jan 5, 2:20 PM MST | Winter Weather Advisory | BOI | 47 hr |
| Jan 13, 12:37 PM MST | Air Stagnation Advisory | BOI | 7 days |
| Jan 20, 4:25 AM MST | Winter Weather Advisory | BOI | 16 hr |
| Feb 21, 1:21 PM MST | Winter Weather Advisory | BOI | 37 hr |
| Mar 19, 2:56 AM MDT | Wind Advisory | BOI | 39 hr |
| Apr 3, 3:33 AM MDT | Wind Advisory | BOI | 62 hr |
| Apr 3, 8:18 PM MDT | Winter Weather Advisory | BOI | 34 hr |
| Apr 4, 5:37 PM MDT | Dust Storm Advisory | BOI | 83 min |
| Apr 6, 2:33 PM MDT | Wind Advisory | BOI | 61 hr |
| Apr 10, 3:12 AM MDT | Winter Weather Advisory | BOI | 63 hr |
| Apr 11, 3:31 AM MDT | Wind Advisory | BOI | 38 hr |
| Apr 21, 2:13 PM MDT | Wind Advisory | BOI | 31 hr |
| May 2, 3:03 AM MDT | Wind Advisory | BOI | 33 hr |
| May 2, 2:41 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| May 2, 2:55 PM MDT | Special Weather Statement | BOI | 35 min |
| May 9, 2:57 AM MDT | Freeze Warning | BOI | 30 hr |
| May 18, 1:30 PM MDT | Wind Advisory | BOI | 32 hr |
| Jun 5, 12:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 4:00 PM MDT | Severe Thunderstorm Warning | BOI | 45 min |
| Jun 5, 4:47 PM MDT | Severe Thunderstorm Warning | BOI | 43 min |
| Jun 5, 5:30 PM MDT | Severe Thunderstorm Warning | BOI | 45 min |
| Jun 5, 5:31 PM MDT | Severe Thunderstorm Warning | BOI | 44 min |
| Jun 5, 10:47 PM MDT | Severe Thunderstorm Warning | BOI | 43 min |
| Jun 5, 11:48 PM MDT | Severe Thunderstorm Warning | BOI | 26 min |
| Jun 10, 2:24 PM MDT | Flood Watch | BOI | 58 hr |
| Jun 12, 2:06 PM MDT | Special Weather Statement | BOI | 24 min |
| Jun 12, 2:24 PM MDT | Special Weather Statement | BOI | 51 min |
| Jun 17, 3:07 AM MDT | Wind Advisory | BOI | 15 hr |
| Jul 12, 4:15 AM MDT | Heat Advisory | BOI | 20 hr |
| Jul 21, 2:15 PM MDT | Red Flag Warning | BOI | 31 hr |
| Jul 26, 1:30 PM MDT | Heat Advisory | BOI | 6 days |
| Jul 28, 2:11 PM MDT | Excessive Heat Warning | BOI | 4 days |
| Jul 28, 2:11 PM MDT | Heat Advisory | BOI | 4 days |
| Jul 28, 8:13 PM MDT | Special Weather Statement | BOI | 32 min |
| Aug 2, 3:49 PM MDT | Special Weather Statement | BOI | 41 min |
| Aug 11, 2:23 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 7:18 PM MDT | Special Weather Statement | BOI | 42 min |
| Aug 11, 9:52 PM MDT | Special Weather Statement | BOI | 38 min |
| Aug 12, 1:13 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 12, 1:55 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 12, 1:58 PM MDT | Severe Thunderstorm Warning | BOI | 47 min |
| Aug 12, 2:39 PM MDT | Severe Thunderstorm Warning | BOI | 36 min |
| Aug 12, 3:11 PM MDT | Severe Thunderstorm Warning | BOI | 23 min |
| Aug 12, 3:46 PM MDT | Severe Thunderstorm Warning | BOI | 29 min |
| Aug 12, 3:46 PM MDT | Severe Thunderstorm Warning | BOI | 29 min |
| Aug 12, 3:48 PM MDT | Severe Thunderstorm Warning | BOI | 27 min |
| Aug 12, 4:03 PM MDT | Severe Thunderstorm Warning | BOI | 27 min |
| Aug 12, 4:12 PM MDT | Severe Thunderstorm Warning | BOI | 33 min |
| Aug 12, 4:13 PM MDT | Severe Thunderstorm Warning | BOI | 30 min |
| Aug 12, 4:21 PM MDT | Severe Thunderstorm Warning | BOI | 39 min |
| Aug 12, 4:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 12, 5:14 PM MDT | Special Weather Statement | BOI | 31 min |
| Aug 12, 5:48 PM MDT | Special Weather Statement | BOI | 42 min |
| Aug 12, 6:14 PM MDT | Special Weather Statement | BOI | 31 min |
| Aug 13, 12:18 AM MDT | Special Weather Statement | BOI | 42 min |
| Aug 16, 3:17 AM MDT | Heat Advisory | BOI | 42 hr |
| Aug 20, 8:56 PM MDT | Special Weather Statement | BOI | 34 min |
| Aug 29, 2:14 PM MDT | Heat Advisory | BOI | 9 days |
| Sep 1, 2:22 PM MDT | Fire Weather Watch | BOI | 23 hr |
| Sep 2, 1:16 PM MDT | Red Flag Warning | BOI | 32 hr |
| Sep 4, 3:14 AM MDT | Heat Advisory | BOI | 4 days |
| Sep 6, 2:21 PM MDT | Fire Weather Watch | BOI | 24 hr |
| Sep 6, 2:21 PM MDT | Red Flag Warning | BOI | 31 hr |
| Sep 7, 2:36 PM MDT | Red Flag Warning | BOI | 30 hr |
| Sep 7, 5:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 6:13 PM MDT | Special Weather Statement | BOI | 32 min |
| Sep 7, 6:45 PM MDT | Special Weather Statement | BOI | 60 min |
| Sep 7, 7:09 PM MDT | Dust Storm Advisory | BOI | 36 min |
| Sep 7, 7:46 PM MDT | Dust Storm Advisory | BOI | 59 min |
| Sep 9, 1:53 PM MDT | Fire Weather Watch | BOI | 25 hr |
| Sep 21, 12:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 21, 12:40 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Oct 21, 2:15 PM MDT | Winter Weather Advisory | BOI | 28 hr |
| Oct 22, 2:51 AM MDT | Freeze Watch | BOI | 12 hr |
| Oct 22, 2:25 PM MDT | Freeze Warning | BOI | 44 hr |
| Nov 2, 1:45 PM MDT | Winter Storm Watch | BOI | 25 hr |
| Nov 3, 6:40 AM MDT | Dense Fog Advisory | BOI | 3 hr |
| Nov 3, 2:24 PM MDT | Wind Advisory | BOI | 48 hr |
| Nov 8, 2:42 AM MST | Winter Weather Advisory | BOI | 38 hr |
| Nov 14, 10:42 AM MST | Air Stagnation Advisory | BOI | 12 days |
| Nov 17, 3:04 AM MST | Dense Fog Advisory | BOI | 7 hr |
| Nov 26, 1:14 PM MST | Winter Storm Watch | BOI | 14 hr |
| Nov 27, 3:10 AM MST | Winter Weather Advisory | BOI | 34 hr |
| Nov 28, 1:46 PM MST | Winter Storm Watch | BOI | 24 hr |
| Nov 29, 1:23 PM MST | Winter Storm Warning | BOI | 64 hr |
| Nov 29, 1:23 PM MST | Winter Weather Advisory | BOI | 64 hr |
| Dec 3, 3:12 AM MST | Winter Weather Advisory | BOI | 38 hr |
| Dec 5, 1:07 AM MST | Dense Fog Advisory | BOI | 34 hr |
| Dec 7, 1:45 AM MST | Dense Fog Advisory | BOI | 8 hr |
| Dec 7, 2:01 PM MST | Winter Weather Advisory | BOI | 46 hr |
| Dec 8, 1:03 PM MST | Winter Storm Watch | BOI | 23 hr |
| Dec 9, 9:57 AM MST | Winter Weather Advisory | BOI | 3 min |
| Dec 9, 11:55 AM MST | Winter Storm Warning | BOI | 47 hr |
| Dec 11, 2:09 PM MST | Winter Weather Advisory | BOI | 39 hr |
| Dec 20, 2:39 AM MST | Winter Storm Watch | BOI | 11 hr |
| Dec 20, 1:41 PM MST | Wind Chill Warning | BOI | 45 hr |
| Dec 20, 1:41 PM MST | Winter Weather Advisory | BOI | 20 hr |
| Dec 24, 3:29 AM MST | Winter Weather Advisory | BOI | 20 hr |
| Dec 24, 7:21 PM MST | Winter Weather Advisory | BOI | 4 hr |
| Dec 25, 1:55 PM MST | Winter Storm Watch | BOI | 14 hr |
| Dec 26, 8:00 PM MST | Dense Fog Advisory | BOI | 8 hr |
| Dec 27, 5:05 PM MST | Special Weather Statement | BOI | 40 min |
| Dec 29, 3:02 AM MST | Winter Weather Advisory | BOI | 33 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 | 16 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 15 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 19 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| Dust Storm Advisory | 3 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Air Stagnation Advisory | 2 |
| Dense 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.