Alert archive / Idaho / Nez Perce County
Weather alerts in Nez Perce County, Idaho, 2022
80 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Nez Perce County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 80
- Warnings
- 25
- Watches
- 10
- Advisories
- 35
- Busiest month
- June19 alerts
- Busiest day
- June 5, 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.
Nez Perce County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 4 | 50% | 2 | 0% | |
| Flash flood warnings | 6 | 0 | 100% | 1 | 0% |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Spokane, WA: tornado warnings | 0 | 2 | 0% | |||
| NWS Spokane, WA: severe thunderstorm warnings | 38 | 22 | 42% | 115 | 53% | 16 min |
| NWS Spokane, WA: flash flood warnings | 29 | 9 | 69% | 42 | 60% | 22 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 2:20 PM PST | Winter Storm Warning | OTX | 53 hr |
| Jan 1, 2:20 PM PST | Winter Weather Advisory | OTX | 55 hr |
| Jan 3, 1:38 AM PST | High Wind Warning | OTX | 12 hr |
| Jan 4, 3:10 AM PST | Winter Weather Advisory | OTX | 29 hr |
| Jan 5, 9:08 AM PST | Winter Weather Advisory | OTX | 27 hr |
| Jan 6, 2:22 PM PST | High Wind Warning | OTX | 28 hr |
| Jan 6, 2:22 PM PST | Wind Advisory | OTX | 32 hr |
| Feb 2, 4:18 AM PST | Winter Weather Advisory | OTX | 24 hr |
| Feb 14, 1:54 PM PST | Winter Weather Advisory | OTX | 19 hr |
| Feb 19, 12:05 PM PST | Winter Weather Advisory | OTX | 55 hr |
| Mar 7, 1:08 PM PST | Winter Weather Advisory | OTX | 33 hr |
| Apr 2, 2:36 AM PDT | High Wind Watch | OTX | 33 hr |
| Apr 3, 12:04 PM PDT | High Wind Warning | OTX | 33 hr |
| Apr 9, 2:27 PM PDT | Winter Weather Advisory | OTX | 69 hr |
| Apr 10, 9:32 PM PDT | Winter Storm Warning | OTX | 37 hr |
| May 6, 1:27 PM PDT | Special Weather Statement | OTX | 33 min |
| May 15, 8:48 AM PDT | Flood Watch | OTX | 12 hr |
| May 15, 1:49 PM PDT | Mesoscale Discussion | SPC | 116 min |
| May 27, 2:09 PM PDT | Areal Flood Advisory | OTX | 92 min |
| Jun 3, 2:07 PM PDT | Areal Flood Advisory | OTX | 98 min |
| Jun 3, 2:15 PM PDT | Severe Thunderstorm Warning | OTX | 29 min |
| Jun 3, 4:19 PM PDT | Areal Flood Advisory | OTX | 2 hr |
| Jun 3, 5:53 PM PDT | Areal Flood Advisory | OTX | 69 min |
| Jun 4, 1:51 PM PDT | Flood Watch | OTX | 33 hr |
| Jun 5, 11:57 AM PDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 1:08 PM PDT | Special Weather Statement | OTX | 22 min |
| Jun 5, 1:30 PM PDT | Special Weather Statement | OTX | 30 min |
| Jun 5, 1:33 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jun 5, 2:05 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jun 5, 3:42 PM PDT | Severe Thunderstorm Warning | OTX | 48 min |
| Jun 5, 4:32 PM PDT | Severe Thunderstorm Warning | OTX | 28 min |
| Jun 5, 5:12 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jun 10, 1:52 AM PDT | Flood Watch | OTX | 3 days |
| Jun 12, 6:02 PM PDT | Areal Flood Warning | OTX | 18 hr |
| Jun 12, 6:44 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jun 12, 8:10 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jun 13, 11:46 AM PDT | Areal Flood Advisory | OTX | 28 hr |
| Jun 25, 2:45 PM PDT | Heat Advisory | OTX | 56 hr |
| Jul 6, 5:58 PM PDT | Areal Flood Advisory | OTX | 3 hr |
| Jul 6, 6:08 PM PDT | Severe Thunderstorm Warning | OTX | 56 min |
| Jul 6, 6:20 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Jul 11, 2:24 PM PDT | Heat Advisory | OTX | 31 hr |
| Jul 23, 2:30 PM PDT | Excessive Heat Watch | OTX | 41 hr |
| Jul 24, 2:58 PM PDT | Excessive Heat Warning | OTX | 8 days |
| Aug 5, 10:13 AM PDT | Excessive Heat Watch | OTX | 28 hr |
| Aug 6, 2:09 PM PDT | Excessive Heat Warning | OTX | 3 days |
| Aug 6, 2:09 PM PDT | Heat Advisory | OTX | 3 days |
| Aug 11, 1:23 PM PDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 2:18 PM PDT | Special Weather Statement | OTX | 27 min |
| Aug 11, 2:47 PM PDT | Areal Flood Advisory | OTX | 3 hr |
| Aug 11, 2:56 PM PDT | Severe Thunderstorm Warning | OTX | 49 min |
| Aug 11, 3:00 PM PDT | Severe Thunderstorm Warning | OTX | 45 min |
| Aug 11, 6:31 PM PDT | Special Weather Statement | OTX | 29 min |
| Aug 11, 8:03 PM PDT | Special Weather Statement | OTX | 27 min |
| Aug 12, 12:52 PM PDT | Severe Thunderstorm Warning | OTX | 25 min |
| Aug 12, 12:55 PM PDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 12, 7:41 PM PDT | Special Weather Statement | OTX | 34 min |
| Aug 14, 1:30 PM PDT | Excessive Heat Watch | OTX | 23 hr |
| Aug 15, 12:00 PM PDT | Heat Advisory | OTX | 4 days |
| Aug 24, 6:45 PM PDT | Severe Thunderstorm Warning | OTX | 45 min |
| Aug 29, 2:13 PM PDT | Heat Advisory | OTX | 54 hr |
| Sep 1, 12:54 PM PDT | Heat Advisory | OTX | 31 hr |
| Sep 2, 12:14 PM PDT | Red Flag Warning | MSO | 52 hr |
| Sep 5, 12:53 PM PDT | Fire Weather Watch | MSO | 13 hr |
| Sep 6, 2:08 AM PDT | Red Flag Warning | MSO | 42 hr |
| Nov 1, 1:44 PM PDT | Winter Weather Advisory | OTX | 18 hr |
| Nov 3, 11:03 AM PDT | High Wind Watch | OTX | 16 hr |
| Nov 3, 2:39 PM PDT | Winter Weather Advisory | OTX | 20 hr |
| Nov 4, 3:24 AM PDT | High Wind Warning | OTX | 32 hr |
| Nov 4, 10:54 AM PDT | Winter Weather Advisory | OTX | 3 hr |
| Nov 18, 10:43 AM PST | Air Stagnation Advisory | OTX | 4 days |
| Nov 26, 12:33 PM PST | Winter Weather Advisory | OTX | 57 hr |
| Nov 29, 2:08 AM PST | Winter Weather Advisory | OTX | 72 hr |
| Dec 3, 12:31 PM PST | Winter Weather Advisory | OTX | 47 hr |
| Dec 11, 9:50 AM PST | Winter Weather Advisory | OTX | 24 hr |
| Dec 16, 1:17 PM PST | Winter Weather Advisory | OTX | 69 hr |
| Dec 19, 2:07 PM PST | Winter Weather Advisory | OTX | 38 hr |
| Dec 20, 2:02 PM PST | Wind Chill Advisory | OTX | 71 hr |
| Dec 22, 4:06 AM PST | Winter Weather Advisory | OTX | 68 hr |
| Dec 26, 12:50 PM PST | Areal Flood Advisory | OTX | 52 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 | 8 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 7 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| Flood Watch | 3 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Weather Advisory | 18 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 6 |
| Cold | |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 2 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
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.