Flash Flood Warnings in Washington
333 flash flood warnings since 1986. 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Flash Flood Warnings
- 333
- Busiest year
- 201334 flash flood warnings
- Average year
- 10over 33 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Chelan County73
- Okanogan County65
- Yakima County37
- Ferry County25
- Stevens County22
- Douglas County20
- Kittitas County18
- Walla Walla County18
- Spokane County17
- Columbia County16
- Benton County15
- Lincoln County15
- Klickitat County14
- Pend Oreille County14
- Asotin County13
- Grant County9
- King County9
- Whitman County9
- Garfield County7
- Franklin County6
- Snohomish County6
- Skamania County6
- Lewis County4
- Adams County3
- Pierce County2
- Mason County2
- Clark County1
- Cowlitz County1
- Skagit County1
- Whatcom County1
- Thurston County1
- Jefferson County1
The latest flash flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 4:55 PM PDT | Flash Flood Warning | OTX | Chelan | 3 hr |
| Aug 13, 6:46 PM PDT | Flash Flood Warning | OTX | Chelan | 3 hr |
| Aug 13, 3:37 PM PDT | Flash Flood Warning | SEW | Mason | 105 min |
| Aug 12, 3:47 PM PDT | Flash Flood Warning | OTX | Okanogan | 3 hr |
| Jun 29, 6:49 PM PDT | Flash Flood Warning | OTX | Pend Oreille, Stevens | 4 hr |
| May 28, 8:22 PM PDT | Flash Flood Warning | OTX | Lincoln | 107 min |
| May 28, 8:06 PM PDT | Flash Flood Warning | OTX | Spokane, Whitman | 114 min |
Nearby
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.