Alert archive / Idaho / Jerome County
Weather alerts in Jerome County, Idaho, 2022
69 weather alerts in 2022, 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 2022. Tap one for its archive.
- Alerts
- 69
- Warnings
- 17
- Watches
- 9
- Advisories
- 31
- Busiest month
- September15 alerts
- Busiest day
- September 21, 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.
Jerome County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 2 | 50% | 0 | ||
| 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 | 68 hr |
| Jan 13, 12:37 PM MST | Air Stagnation Advisory | BOI | 7 days |
| Jan 16, 8:52 PM MST | Dense Fog Advisory | BOI | 12 hr |
| Jan 17, 8:24 PM MST | Dense Fog Advisory | BOI | 17 hr |
| Jan 18, 2:22 PM MST | Dense Fog Advisory | BOI | 19 hr |
| Jan 20, 4:25 AM MST | Winter Weather Advisory | BOI | 16 hr |
| Jan 21, 3:18 AM MST | Dense Fog Advisory | BOI | 10 hr |
| Mar 7, 1:39 PM MST | Winter Weather Advisory | BOI | 47 hr |
| Mar 19, 2:56 AM MDT | Wind Advisory | BOI | 39 hr |
| Mar 19, 8:47 PM MDT | High Wind Warning | BOI | 21 hr |
| Apr 3, 3:33 AM MDT | Wind Advisory | BOI | 62 hr |
| Apr 6, 2:33 PM MDT | Wind Advisory | BOI | 61 hr |
| Apr 11, 3:31 AM MDT | Wind Advisory | BOI | 38 hr |
| Apr 11, 2:33 PM MDT | Special Weather Statement | BOI | 57 min |
| Apr 16, 3:08 AM MDT | Wind Advisory | BOI | 18 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, 3:02 PM MDT | Special Weather Statement | BOI | 43 min |
| May 2, 3:45 PM MDT | Special Weather Statement | BOI | 30 min |
| May 9, 2:57 AM MDT | Freeze Warning | BOI | 30 hr |
| May 18, 1:30 PM MDT | Wind Advisory | BOI | 32 hr |
| May 19, 3:11 AM MDT | Freeze Warning | BOI | 30 hr |
| May 19, 4:13 PM MDT | High Wind Warning | BOI | 5 hr |
| Jun 5, 5:30 PM MDT | Severe Thunderstorm Warning | BOI | 45 min |
| Jun 5, 6:14 PM MDT | Severe Thunderstorm Warning | BOI | 46 min |
| Jun 5, 6:20 PM MDT | Areal Flood Advisory | BOI | 115 min |
| Jun 5, 6:47 PM MDT | Severe Thunderstorm Warning | BOI | 28 min |
| Jun 17, 3:07 AM MDT | Wind Advisory | BOI | 15 hr |
| Jun 19, 11:30 AM MDT | Wind Advisory | BOI | 7 hr |
| Jul 2, 2:41 PM MDT | Special Weather Statement | BOI | 49 min |
| Jul 12, 4:15 AM MDT | Heat Advisory | BOI | 20 hr |
| Jul 13, 1:11 PM MDT | Special Weather Statement | BOI | 34 min |
| Jul 17, 3:02 AM MDT | Fire Weather Watch | PIH | 12 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 21, 2:15 PM MDT | Red Flag Warning | BOI | 31 hr |
| Jul 28, 2:11 PM MDT | Heat Advisory | BOI | 4 days |
| Aug 12, 1:55 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 16, 3:17 AM MDT | Heat Advisory | BOI | 42 hr |
| Aug 26, 1:46 PM MDT | Red Flag Warning | PIH | 30 hr |
| Aug 27, 1:24 PM MDT | Red Flag Warning | PIH | 31 hr |
| Aug 29, 2:14 PM MDT | Heat Advisory | BOI | 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 6, 2:21 PM MDT | Fire Weather Watch | BOI | 24 hr |
| Sep 7, 12:44 PM MDT | Red Flag Warning | PIH | 32 hr |
| Sep 7, 2:36 PM MDT | Red Flag Warning | BOI | 30 hr |
| Sep 7, 7:46 PM MDT | Dust Storm Advisory | BOI | 59 min |
| Sep 21, 12:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 21, 12:22 PM MDT | Severe Thunderstorm Warning | BOI | 23 min |
| Sep 21, 12:40 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 21, 12:46 PM MDT | Special Weather Statement | BOI | 29 min |
| Sep 21, 1:21 PM MDT | Special Weather Statement | BOI | 24 min |
| Sep 21, 2:19 PM MDT | Special Weather Statement | BOI | 26 min |
| Sep 21, 2:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Sep 21, 8:24 PM MDT | Special Weather Statement | BOI | 36 min |
| Oct 22, 2:51 AM MDT | Freeze Watch | BOI | 12 hr |
| Oct 22, 2:25 PM MDT | Freeze Warning | BOI | 44 hr |
| Nov 3, 2:24 PM MDT | Wind Advisory | BOI | 48 hr |
| Nov 14, 10:42 AM MST | Air Stagnation Advisory | BOI | 12 days |
| 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, 2:01 PM MST | Winter Weather Advisory | BOI | 46 hr |
| Dec 14, 12:32 PM MST | Winter Weather Advisory | BOI | 16 hr |
| 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 | 4 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| Dust Storm Advisory | 1 |
| Wind Advisory | 11 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 5 |
| 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.