Alert archive / Idaho / Lewis County
Weather alerts in Lewis County, Idaho, 2024
57 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lewis County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 57
- Warnings
- 7
- Watches
- 5
- Advisories
- 24
- Busiest month
- July12 alerts
- Busiest day
- August 6, 20245 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Lewis County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 1 | 0% | |
| Flash flood warnings | 0 | 2 | 0% |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Spokane, WA: severe thunderstorm warnings | 13 | 10 | 23% | 91 | 58% | 32 min |
| NWS Spokane, WA: flash flood warnings | 5 | 0 | 100% | 17 | 0% |
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 4, 1:41 PM PST | Winter Weather Advisory | OTX | 62 hr |
| Jan 7, 2:28 PM PST | Winter Weather Advisory | OTX | 45 hr |
| Jan 7, 3:51 PM PST | Wind Advisory | OTX | 56 hr |
| Jan 9, 2:44 PM PST | Winter Storm Watch | OTX | 25 hr |
| Jan 9, 2:44 PM PST | Winter Weather Advisory | OTX | 21 hr |
| Jan 10, 3:14 PM PST | Winter Storm Warning | OTX | 43 hr |
| Jan 11, 2:41 PM PST | Wind Chill Advisory | OTX | 69 hr |
| Jan 15, 2:53 PM PST | Winter Weather Advisory | OTX | 63 hr |
| Jan 17, 11:49 AM PST | Mesoscale Discussion | SPC | 4 hr |
| Jan 17, 9:09 PM PST | Winter Weather Advisory | OTX | 41 hr |
| Feb 7, 1:31 PM PST | Winter Weather Advisory | OTX | 21 hr |
| Feb 8, 1:32 PM PST | Winter Weather Advisory | OTX | 22 hr |
| Feb 13, 2:00 PM PST | Winter Weather Advisory | OTX | 56 hr |
| Feb 23, 1:47 PM PST | Wind Advisory | OTX | 64 hr |
| Feb 27, 12:21 PM PST | High Wind Watch | OTX | 22 hr |
| Feb 28, 10:45 AM PST | High Wind Warning | OTX | 27 hr |
| Mar 1, 5:10 PM PST | Special Weather Statement | OTX | 50 min |
| Apr 4, 2:28 AM PDT | Winter Weather Advisory | OTX | 57 hr |
| Apr 20, 12:09 PM PDT | Wind Advisory | OTX | 18 hr |
| May 15, 2:17 PM PDT | Wind Advisory | OTX | 49 hr |
| May 28, 4:55 PM PDT | Special Weather Statement | MSO | 35 min |
| May 28, 5:46 PM PDT | Special Weather Statement | MSO | 44 min |
| Jun 1, 12:58 PM PDT | Flood Watch | OTX | 38 hr |
| Jun 2, 2:02 AM PDT | Wind Advisory | OTX | 40 hr |
| Jul 2, 1:37 PM PDT | Excessive Heat Watch | OTX | 14 hr |
| Jul 3, 3:10 AM PDT | Excessive Heat Warning | OTX | 8 days |
| Jul 12, 1:54 AM PDT | Heat Advisory | OTX | 68 hr |
| Jul 15, 2:12 PM PDT | Heat Advisory | OTX | 5 days |
| Jul 18, 4:56 PM PDT | Excessive Heat Warning | OTX | 4 days |
| Jul 22, 7:32 PM PDT | Special Weather Statement | MSO | 28 min |
| Jul 22, 8:19 PM PDT | Special Weather Statement | MSO | 41 min |
| Jul 24, 5:12 PM PDT | Special Weather Statement | OTX | 48 min |
| Jul 24, 5:18 PM PDT | Special Weather Statement | MSO | 42 min |
| Jul 24, 6:08 PM PDT | Special Weather Statement | OTX | 22 min |
| Jul 30, 2:14 PM PDT | Excessive Heat Watch | OTX | 24 hr |
| Jul 31, 2:33 PM PDT | Excessive Heat Warning | OTX | 3 days |
| Aug 5, 8:20 AM PDT | Special Weather Statement | MSO | 40 min |
| Aug 5, 8:50 AM PDT | Special Weather Statement | OTX | 25 min |
| Aug 5, 1:35 PM PDT | Mesoscale Discussion | SPC | 115 min |
| Aug 5, 4:07 PM PDT | Special Weather Statement | MSO | 38 min |
| Aug 5, 5:10 PM PDT | Special Weather Statement | MSO | 50 min |
| Aug 5, 5:18 PM PDT | Mesoscale Discussion | SPC | 57 min |
| Aug 5, 6:14 PM PDT | Special Weather Statement | OTX | 31 min |
| Aug 5, 6:33 PM PDT | Special Weather Statement | OTX | 27 min |
| Aug 5, 10:58 PM PDT | Special Weather Statement | MSO | 32 min |
| Aug 15, 5:41 PM PDT | Special Weather Statement | OTX | 49 min |
| Aug 15, 6:09 PM PDT | Special Weather Statement | OTX | 36 min |
| Aug 23, 2:41 AM PDT | Wind Advisory | OTX | 17 hr |
| Sep 2, 7:51 PM PDT | Special Weather Statement | OTX | 24 min |
| Sep 4, 1:31 AM PDT | Heat Advisory | OTX | 4 days |
| Sep 25, 3:58 PM PDT | Severe Thunderstorm Warning | OTX | 62 min |
| Sep 29, 4:54 AM PDT | Frost Advisory | OTX | 27 hr |
| Oct 2, 2:13 PM PDT | Frost Advisory | OTX | 18 hr |
| Oct 3, 10:09 AM PDT | Wind Advisory | OTX | 32 hr |
| Oct 3, 10:31 AM PDT | Red Flag Warning | MSO | 34 hr |
| Nov 3, 2:22 PM PST | Wind Advisory | OTX | 39 hr |
| Dec 25, 10:48 AM PST | Wind Advisory | OTX | 30 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 | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 18 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 9 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.