Alert archive / Washington / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Washington, 2017
27 severe thunderstorm warnings in 2017. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 27
- Busiest month
- May20 severe thunderstorm warnings
- Busiest day
- May 4, 201711 severe thunderstorm warnings
Over time
By month
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 | Counties | Lasted |
|---|---|---|---|---|
| May 4, 2:04 PM PDT | Severe Thunderstorm Warning | PQR | Pacific, Wahkiakum | 41 min |
| May 4, 3:04 PM PDT | Severe Thunderstorm Warning | PQR | Pacific, Wahkiakum | 41 min |
| May 4, 3:06 PM PDT | Severe Thunderstorm Warning | SEW | Lewis, Pierce | 24 min |
| May 4, 3:28 PM PDT | Severe Thunderstorm Warning | SEW | Lewis, Pierce | 32 min |
| May 4, 3:43 PM PDT | Severe Thunderstorm Warning | SEW | Grays Harbor, Lewis, Thurston | 32 min |
| May 4, 3:52 PM PDT | Severe Thunderstorm Warning | PQR | Skamania | 23 min |
| May 4, 4:11 PM PDT | Severe Thunderstorm Warning | SEW | King, Pierce | 34 min |
| May 4, 4:14 PM PDT | Severe Thunderstorm Warning | SEW | Lewis, Thurston | 31 min |
| May 4, 4:16 PM PDT | Severe Thunderstorm Warning | PQR | Clark, Cowlitz, Skamania | 29 min |
| May 4, 4:23 PM PDT | Severe Thunderstorm Warning | SEW | Lewis | 37 min |
| May 4, 4:45 PM PDT | Severe Thunderstorm Warning | SEW | Pierce, Thurston | 30 min |
| May 4, 5:03 PM PDT | Severe Thunderstorm Warning | PQR | Clark, Cowlitz, Skamania | 27 min |
| May 4, 5:20 PM PDT | Severe Thunderstorm Warning | SEW | Lewis | 25 min |
| May 4, 7:20 PM PDT | Severe Thunderstorm Warning | PQR | Cowlitz, Wahkiakum | 29 min |
| May 4, 8:54 PM PDT | Severe Thunderstorm Warning | PDT | Benton, Klickitat | 51 min |
| May 4, 9:25 PM PDT | Severe Thunderstorm Warning | PDT | Benton, Franklin | 50 min |
| May 5, 2:44 AM PDT | Severe Thunderstorm Warning | OTX | Douglas, Grant, Lincoln, Okanogan | 46 min |
| May 5, 3:13 AM PDT | Severe Thunderstorm Warning | OTX | Adams, Grant, Lincoln | 47 min |
| May 5, 4:13 PM PDT | Severe Thunderstorm Warning | OTX | Asotin | 47 min |
| May 11, 3:18 PM PDT | Severe Thunderstorm Warning | OTX | Ferry, Okanogan | 42 min |
| Jun 26, 4:28 PM PDT | Severe Thunderstorm Warning | PDT | Columbia, Walla Walla | 32 min |
| Jun 26, 4:49 PM PDT | Severe Thunderstorm Warning | PDT | Benton, Walla Walla | 56 min |
| Jun 26, 5:41 PM PDT | Severe Thunderstorm Warning | PDT | Benton, Franklin, Walla Walla | 64 min |
| Jun 26, 6:05 PM PDT | Severe Thunderstorm Warning | PDT | Benton, Columbia, Franklin, Walla Walla | 55 min |
| Sep 18, 4:15 PM PDT | Severe Thunderstorm Warning | PQR | Pacific, Wahkiakum | 30 min |
| Sep 18, 5:13 PM PDT | Severe Thunderstorm Warning | PQR | Pacific, Wahkiakum | 32 min |
| Sep 18, 5:15 PM PDT | Severe Thunderstorm Warning | SEW | Lewis, Thurston | 30 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lewis County7
- Wahkiakum County5
- Benton County5
- Pacific County4
- Pierce County4
- Thurston County4
- Walla Walla County4
- Skamania County3
- Cowlitz County3
- Franklin County3
- Clark County2
- Grant County2
- Lincoln County2
- Okanogan County2
- Columbia County2
- Grays Harbor County1
- King County1
- Klickitat County1
- Douglas County1
- Adams County1
- Asotin County1
- Ferry County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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. Rebuilt daily.