Alert archive / Washington / Okanogan County
Weather alerts in Okanogan County, Washington, 2024
118 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Okanogan County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 118
- Warnings
- 31
- Watches
- 18
- Advisories
- 63
- Busiest month
- July19 alerts
- Busiest day
- May 29, 20244 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Okanogan 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% | 8 | 38% | 8 min |
| Flash flood warnings | 3 | 0 | 100% | 1 | 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 |
|---|---|---|---|
| Dec 31, 7:45 PM PST | Dense Fog Advisory | OTX | 40 hr |
| Jan 4, 1:41 PM PST | Winter Weather Advisory | OTX | 62 hr |
| Jan 6, 1:33 PM PST | Winter Storm Watch | OTX | 25 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 10, 3:14 PM PST | Wind Chill Watch | OTX | 21 hr |
| Jan 11, 12:06 PM PST | Wind Chill Warning | OTX | 72 hr |
| Jan 15, 2:53 PM PST | Winter Storm Warning | OTX | 63 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 |
| Jan 20, 3:20 AM PST | Winter Weather Advisory | OTX | 62 hr |
| Jan 25, 2:16 AM PST | Dense Fog Advisory | OTX | 8 hr |
| Jan 26, 2:20 AM PST | Winter Weather Advisory | OTX | 34 hr |
| Jan 29, 5:24 PM PST | Dense Fog Advisory | OTX | 19 hr |
| Feb 2, 1:40 AM PST | Dense Fog Advisory | OTX | 9 hr |
| Feb 2, 2:15 AM PST | Winter Weather Advisory | OTX | 56 hr |
| Feb 13, 2:00 PM PST | Winter Weather Advisory | OTX | 56 hr |
| Feb 21, 1:34 AM PST | Dense Fog Advisory | OTX | 7 hr |
| Feb 23, 1:47 PM PST | Wind Advisory | OTX | 64 hr |
| Feb 27, 3:59 AM PST | Winter Storm Warning | OTX | 63 hr |
| Feb 27, 3:59 AM PST | Winter Weather Advisory | OTX | 30 hr |
| Feb 27, 9:57 AM PST | Wind Advisory | OTX | 48 hr |
| Mar 1, 10:03 AM PST | Winter Weather Advisory | OTX | 29 hr |
| Mar 1, 5:59 PM PST | Special Weather Statement | OTX | 46 min |
| Mar 10, 2:06 PM PDT | Winter Weather Advisory | OTX | 57 hr |
| Apr 20, 12:09 PM PDT | Wind Advisory | OTX | 18 hr |
| May 1, 2:39 PM PDT | Freeze Warning | OTX | 18 hr |
| May 15, 2:17 PM PDT | Wind Advisory | OTX | 49 hr |
| May 19, 2:10 PM PDT | Frost Advisory | OTX | 18 hr |
| May 29, 2:00 AM PDT | Freeze Watch | OTX | 9 hr |
| May 29, 11:19 AM PDT | Frost Advisory | OTX | 45 hr |
| May 29, 11:19 AM PDT | Freeze Warning | OTX | 45 hr |
| May 29, 2:57 PM PDT | Special Weather Statement | OTX | 33 min |
| Jun 2, 2:02 AM PDT | Wind Advisory | OTX | 40 hr |
| Jun 10, 2:12 PM PDT | Wind Advisory | OTX | 30 hr |
| Jun 14, 6:16 PM PDT | Frost Advisory | OTX | 38 hr |
| Jun 15, 12:05 PM PDT | Wind Advisory | OTX | 8 hr |
| Jun 21, 12:03 PM PDT | Fire Weather Watch | OTX | 25 hr |
| Jun 22, 12:54 PM PDT | Red Flag Warning | OTX | 31 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 3, 9:25 AM PDT | Heat Advisory | OTX | 8 days |
| Jul 7, 6:08 PM PDT | Red Flag Warning | OTX | 53 hr |
| Jul 8, 3:32 AM PDT | Fire Weather Watch | OTX | 34 hr |
| Jul 9, 1:30 PM PDT | Red Flag Warning | OTX | 34 hr |
| Jul 12, 1:54 AM PDT | Heat Advisory | OTX | 68 hr |
| Jul 15, 2:12 PM PDT | Heat Advisory | OTX | 5 days |
| Jul 15, 2:55 PM PDT | Fire Weather Watch | OTX | 22 hr |
| Jul 16, 1:12 PM PDT | Red Flag Warning | OTX | 35 hr |
| Jul 18, 4:56 PM PDT | Excessive Heat Warning | OTX | 4 days |
| Jul 19, 5:33 AM PDT | Fire Weather Watch | OTX | 25 hr |
| Jul 20, 6:21 AM PDT | Red Flag Warning | OTX | 65 hr |
| Jul 21, 1:10 PM PDT | Red Flag Warning | OTX | 33 hr |
| Jul 23, 2:15 PM PDT | Red Flag Warning | OTX | 31 hr |
| Jul 24, 1:45 PM PDT | Red Flag Warning | OTX | 31 hr |
| Jul 30, 2:14 PM PDT | Excessive Heat Watch | OTX | 24 hr |
| Jul 31, 2:33 PM PDT | Excessive Heat Warning | OTX | 3 days |
| Jul 31, 2:33 PM PDT | Heat Advisory | OTX | 3 days |
| Aug 9, 3:55 AM PDT | Red Flag Warning | OTX | 20 hr |
| Aug 9, 1:54 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Aug 11, 3:28 AM PDT | Red Flag Warning | OTX | 41 hr |
| Aug 12, 4:38 AM PDT | Flood Watch | OTX | 14 hr |
| Aug 13, 3:10 PM PDT | Flash Flood Warning | OTX | 2 hr |
| Aug 15, 1:41 PM PDT | Flash Flood Watch | OTX | 33 hr |
| Aug 16, 2:01 PM PDT | Flash Flood Warning | OTX | 3 hr |
| Aug 16, 4:10 PM PDT | Special Weather Statement | OTX | 35 min |
| Aug 22, 2:26 PM PDT | Blowing Dust Advisory | OTX | 27 hr |
| Aug 23, 2:41 AM PDT | Wind Advisory | OTX | 17 hr |
| Aug 26, 2:46 PM PDT | Red Flag Warning | OTX | 29 hr |
| Aug 29, 2:29 PM PDT | Heat Advisory | OTX | 3 days |
| Sep 4, 1:31 AM PDT | Heat Advisory | OTX | 4 days |
| Sep 19, 2:01 PM PDT | Freeze Watch | OTX | 24 hr |
| Sep 20, 1:37 PM PDT | Frost Advisory | OTX | 42 hr |
| Sep 24, 9:46 AM PDT | Blowing Dust Advisory | OTX | 34 hr |
| Sep 24, 9:46 AM PDT | Wind Advisory | OTX | 37 hr |
| Sep 25, 2:00 PM PDT | Special Weather Statement | OTX | 30 min |
| Sep 25, 2:22 PM PDT | Special Weather Statement | OTX | 23 min |
| Sep 25, 2:38 PM PDT | Severe Thunderstorm Warning | OTX | 37 min |
| Sep 27, 7:49 PM PDT | Fire Weather Watch | OTX | 18 hr |
| Sep 28, 12:54 PM PDT | Freeze Watch | OTX | 16 hr |
| Sep 28, 1:49 PM PDT | Red Flag Warning | OTX | 29 hr |
| Sep 29, 4:54 AM PDT | Blowing Dust Advisory | OTX | 14 hr |
| Sep 29, 4:54 AM PDT | Frost Advisory | OTX | 27 hr |
| Sep 29, 4:54 AM PDT | Freeze Warning | OTX | 27 hr |
| Oct 2, 2:13 PM PDT | Frost Advisory | OTX | 18 hr |
| Oct 3, 10:09 AM PDT | Blowing Dust Advisory | OTX | 30 hr |
| Oct 26, 2:20 PM PDT | Winter Weather Advisory | OTX | 45 hr |
| Oct 30, 1:05 PM PDT | Winter Weather Advisory | OTX | 24 hr |
| Oct 31, 1:21 PM PDT | Winter Storm Warning | OTX | 40 hr |
| Nov 2, 12:48 PM PDT | Winter Storm Watch | OTX | 27 hr |
| Nov 3, 8:26 AM PST | Winter Storm Warning | OTX | 49 hr |
| Nov 9, 1:31 PM PST | Winter Weather Advisory | OTX | 69 hr |
| Nov 11, 1:47 PM PST | Winter Storm Watch | OTX | 21 hr |
| Nov 12, 10:36 AM PST | Winter Storm Warning | OTX | 49 hr |
| Nov 14, 1:26 PM PST | Winter Storm Watch | OTX | 25 hr |
| Nov 15, 1:58 PM PST | Winter Storm Warning | OTX | 3 days |
| Nov 15, 1:58 PM PST | Winter Weather Advisory | OTX | 39 hr |
| Nov 18, 2:35 AM PST | Winter Storm Watch | OTX | 12 hr |
| Nov 18, 2:32 PM PST | Winter Storm Warning | OTX | 62 hr |
| Nov 18, 2:32 PM PST | Winter Weather Advisory | OTX | 67 hr |
| Nov 22, 4:02 AM PST | Winter Weather Advisory | OTX | 7 hr |
| Nov 28, 9:10 PM PST | Dense Fog Advisory | OTX | 11 hr |
| Nov 29, 3:51 PM PST | Air Stagnation Advisory | OTX | 68 hr |
| Dec 6, 1:55 PM PST | Winter Weather Advisory | OTX | 50 hr |
| Dec 9, 8:09 PM PST | Dense Fog Advisory | OTX | 13 hr |
| Dec 12, 1:44 PM PST | Winter Weather Advisory | OTX | 68 hr |
| Dec 15, 2:04 PM PST | Winter Weather Advisory | OTX | 62 hr |
| Dec 16, 2:20 PM PST | Winter Weather Advisory | OTX | 38 hr |
| Dec 17, 10:04 AM PST | Wind Advisory | OTX | 29 hr |
| Dec 18, 4:04 AM PST | Winter Weather Advisory | OTX | 6 hr |
| Dec 21, 10:19 AM PST | Winter Weather Advisory | OTX | 7 hr |
| Dec 21, 7:55 PM PST | Dense Fog Advisory | OTX | 17 hr |
| Dec 23, 7:06 PM PST | Winter Weather Advisory | OTX | 13 hr |
| Dec 24, 2:56 PM PST | Winter Storm Warning | OTX | 49 hr |
| Dec 24, 2:56 PM PST | Winter Weather Advisory | OTX | 46 hr |
| Dec 24, 11:49 PM PST | Dense Fog Advisory | OTX | 11 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.
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.