Alert archive / Idaho / Jerome County
Weather alerts in Jerome County, Idaho, 2025
64 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jerome County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 64
- Warnings
- 17
- Watches
- 7
- Advisories
- 23
- Busiest month
- July14 alerts
- Busiest day
- May 11, 20254 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jerome County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 3 | 25% | 7 | 57% | 24 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boise, ID: severe thunderstorm warnings | 39 | 5 | 87% | 62 | 19% | 24 min |
| NWS Boise, ID: flash flood warnings | 11 | 4 | 64% | 20 | 30% | 30 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 4, 3:26 AM MST | Wind Advisory | BOI | 13 hr |
| Jan 13, 1:24 PM MST | Air Stagnation Advisory | BOI | 4 days |
| Jan 25, 10:27 AM MST | Air Stagnation Advisory | BOI | 6 days |
| Feb 1, 1:47 PM MST | Winter Weather Advisory | BOI | 4 days |
| Feb 6, 2:55 AM MST | Wind Advisory | BOI | 38 hr |
| Feb 8, 2:07 PM MST | Cold Weather Advisory | BOI | 5 days |
| Feb 11, 1:37 PM MST | Winter Storm Watch | BOI | 14 hr |
| Feb 12, 4:04 AM MST | Winter Storm Warning | BOI | 55 hr |
| Feb 20, 2:51 AM MST | Dense Fog Advisory | BOI | 4 hr |
| Mar 15, 2:55 AM MDT | Wind Advisory | BOI | 45 hr |
| Mar 17, 1:33 PM MDT | Wind Advisory | BOI | 31 hr |
| Mar 21, 1:41 PM MDT | Wind Advisory | BOI | 28 hr |
| Apr 16, 12:40 PM MDT | Wind Advisory | BOI | 32 hr |
| Apr 25, 3:59 PM MDT | Special Weather Statement | BOI | 46 min |
| May 10, 2:26 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 8:32 PM MDT | Special Weather Statement | BOI | 43 min |
| May 11, 2:08 PM MDT | Special Weather Statement | BOI | 22 min |
| May 11, 2:26 PM MDT | Special Weather Statement | BOI | 49 min |
| May 11, 3:13 PM MDT | Special Weather Statement | BOI | 17 min |
| May 17, 1:44 AM MDT | Wind Advisory | BOI | 43 hr |
| May 18, 1:27 PM MDT | Frost Advisory | BOI | 19 hr |
| May 29, 12:39 PM MDT | Heat Advisory | BOI | 54 hr |
| Jun 11, 1:57 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jun 12, 5:17 PM MDT | Special Weather Statement | BOI | 43 min |
| Jun 20, 2:18 AM MDT | Wind Advisory | BOI | 19 hr |
| Jul 4, 12:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 4, 4:11 PM MDT | Special Weather Statement | BOI | 64 min |
| Jul 7, 12:20 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Jul 8, 12:49 PM MDT | Red Flag Warning | BOI | 34 hr |
| Jul 8, 1:07 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 13, 9:47 AM MDT | Fire Weather Watch | BOI | 22 hr |
| Jul 13, 10:37 AM MDT | Fire Weather Watch | PIH | 21 hr |
| Jul 14, 8:05 AM MDT | Red Flag Warning | PIH | 13 hr |
| Jul 14, 8:07 AM MDT | Red Flag Warning | BOI | 13 hr |
| Jul 19, 8:04 PM MDT | Red Flag Warning | PIH | 25 hr |
| Jul 30, 2:26 PM MDT | Red Flag Warning | BOI | 34 hr |
| Jul 30, 2:27 PM MDT | Red Flag Warning | PIH | 31 hr |
| Jul 31, 2:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Jul 31, 3:36 PM MDT | Special Weather Statement | BOI | 24 min |
| Aug 1, 2:15 AM MDT | Red Flag Warning | PIH | 20 hr |
| Aug 12, 11:56 AM MDT | Red Flag Warning | PIH | 33 hr |
| Aug 16, 9:04 PM MDT | Red Flag Warning | PIH | 24 hr |
| Aug 25, 11:41 AM MDT | Flash Flood Watch | BOI | 58 hr |
| Aug 29, 4:53 PM MDT | Special Weather Statement | BOI | 37 min |
| Sep 11, 6:14 PM MDT | Special Weather Statement | BOI | 46 min |
| Sep 21, 2:22 PM MDT | Special Weather Statement | BOI | 38 min |
| Sep 21, 2:29 PM MDT | Severe Thunderstorm Warning | BOI | 46 min |
| Sep 30, 3:58 PM MDT | Special Weather Statement | BOI | 47 min |
| Oct 5, 1:29 PM MDT | Frost Advisory | BOI | 21 hr |
| Oct 6, 1:20 PM MDT | Frost Advisory | BOI | 20 hr |
| Oct 10, 9:24 PM MDT | Special Weather Statement | BOI | 36 min |
| Oct 16, 2:05 PM MDT | Frost Advisory | BOI | 43 hr |
| Oct 20, 2:28 AM MDT | Freeze Watch | BOI | 11 hr |
| Oct 20, 1:06 PM MDT | Freeze Warning | BOI | 21 hr |
| Nov 20, 10:00 PM MST | Dense Fog Advisory | BOI | 12 hr |
| Nov 21, 1:07 PM MST | Dense Fog Advisory | BOI | 21 hr |
| Dec 10, 1:30 PM MST | Air Stagnation Advisory | BOI | 6 days |
| Dec 15, 1:52 PM MST | High Wind Watch | BOI | 7 hr |
| Dec 15, 8:23 PM MST | High Wind Warning | BOI | 45 hr |
| Dec 15, 8:23 PM MST | Wind Advisory | BOI | 45 hr |
| Dec 17, 8:33 AM MST | Severe Thunderstorm Warning | BOI | 42 min |
| Dec 17, 9:09 AM MST | Severe Thunderstorm Warning | BOI | 51 min |
| Dec 17, 9:56 AM MST | Severe Thunderstorm Warning | BOI | 49 min |
| Dec 27, 12:56 PM MST | Air Stagnation Advisory | BOI | 4 days |
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 | 4 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 13 |
| Flooding | |
| Flash Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 10 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Air Stagnation Advisory | 4 |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.