Alert archive / Idaho / Ada County
Weather alerts in Ada County, Idaho, 2022
74 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ada County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 74
- Warnings
- 14
- Watches
- 2
- Advisories
- 34
- Busiest month
- August16 alerts
- Busiest day
- August 12, 20229 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Ada County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 6 | 45% | 2 | 50% | 40 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 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 4, 5:37 PM MDT | Dust Storm Advisory | BOI | 83 min |
| Apr 6, 2:33 PM MDT | Wind Advisory | BOI | 61 hr |
| Apr 11, 3:31 AM MDT | Wind Advisory | BOI | 38 hr |
| Apr 21, 2:13 PM MDT | Wind Advisory | BOI | 31 hr |
| Apr 21, 4:46 PM MDT | Special Weather Statement | BOI | 29 min |
| Apr 21, 5:14 PM MDT | Special Weather Statement | BOI | 31 min |
| May 2, 3:03 AM MDT | Wind Advisory | BOI | 33 hr |
| May 2, 1:42 PM MDT | Special Weather Statement | BOI | 33 min |
| May 2, 2:12 PM MDT | Special Weather Statement | BOI | 48 min |
| May 7, 12:16 AM MDT | Special Weather Statement | BOI | 44 min |
| May 7, 5:44 PM MDT | Special Weather Statement | BOI | 31 min |
| May 9, 2:57 AM MDT | Freeze Warning | BOI | 30 hr |
| May 18, 1:30 PM MDT | Wind Advisory | BOI | 32 hr |
| May 28, 8:09 PM MDT | Special Weather Statement | BOI | 36 min |
| May 28, 9:01 PM MDT | Special Weather Statement | BOI | 59 min |
| Jun 5, 12:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 3:37 PM MDT | Areal Flood Advisory | BOI | 70 min |
| Jun 5, 3:46 PM MDT | Special Weather Statement | BOI | 44 min |
| Jun 5, 3:50 PM MDT | Special Weather Statement | BOI | 40 min |
| Jun 5, 3:54 PM MDT | Areal Flood Advisory | BOI | 100 min |
| 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, 7:02 PM MDT | Special Weather Statement | BOI | 28 min |
| Jun 5, 10:47 PM MDT | Severe Thunderstorm Warning | BOI | 43 min |
| Jun 12, 1:08 PM MDT | Special Weather Statement | BOI | 37 min |
| Jun 12, 1:38 PM MDT | Special Weather Statement | BOI | 37 min |
| Jul 3, 1:07 AM MDT | Special Weather Statement | BOI | 23 min |
| Jul 12, 4:15 AM MDT | Heat Advisory | BOI | 20 hr |
| Jul 26, 1:30 PM MDT | Heat Advisory | BOI | 6 days |
| Jul 28, 2:11 PM MDT | Excessive Heat Warning | BOI | 4 days |
| Aug 10, 6:25 PM MDT | Special Weather Statement | BOI | 35 min |
| Aug 10, 7:06 PM MDT | Areal Flood Advisory | BOI | 114 min |
| Aug 11, 2:23 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 4:53 PM MDT | Special Weather Statement | BOI | 52 min |
| Aug 11, 5:12 PM MDT | Severe Thunderstorm Warning | BOI | 48 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, 2:39 PM MDT | Severe Thunderstorm Warning | BOI | 36 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, 4:12 PM MDT | Severe Thunderstorm Warning | BOI | 33 min |
| Aug 12, 4:13 PM MDT | Severe Thunderstorm Warning | BOI | 30 min |
| Aug 12, 4:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 12, 4:59 PM MDT | Special Weather Statement | BOI | 16 min |
| Aug 16, 3:17 AM MDT | Heat Advisory | BOI | 42 hr |
| Aug 29, 2:14 PM MDT | Heat Advisory | BOI | 9 days |
| Sep 4, 3:14 AM MDT | Heat Advisory | BOI | 4 days |
| Sep 7, 5:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 6:08 PM MDT | Severe Thunderstorm Warning | BOI | 37 min |
| Sep 7, 6:41 PM MDT | Severe Thunderstorm Warning | BOI | 64 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 21, 12:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 21, 12:39 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, 6:40 AM MDT | Dense Fog Advisory | BOI | 3 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 |
| 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 9, 9:57 AM MST | Winter Weather Advisory | BOI | 3 min |
| Dec 11, 2:09 PM MST | Winter Weather Advisory | BOI | 39 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 26, 8:00 PM MST | Dense Fog Advisory | BOI | 8 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 | 11 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 9 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Wind and dust | |
| Dust Storm Advisory | 3 |
| Wind Advisory | 7 |
| 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.