River Flood Warnings in Washington
1,479 river 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 river flood warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- River Flood Warnings
- 1,479
- Busiest year
- 2015155 river flood warnings
- Average year
- 74over 20 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not 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.
- Snohomish County236
- King County184
- Mason County180
- Lewis County137
- Wahkiakum County95
- Pierce County94
- Thurston County74
- Whatcom County74
- Clallam County66
- Grays Harbor County66
- Skagit County52
- Yakima County52
- Whitman County36
- Chelan County30
- Pacific County29
- Cowlitz County28
- Okanogan County27
- Ferry County18
- Asotin County17
- Kittitas County15
- Walla Walla County11
- Spokane County8
- Benton County8
- Clark County6
- Klickitat County5
- Pend Oreille County4
- Garfield County1
- Kitsap County1
The latest river flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 9:30 PM PDT | River Flood Warning | OTX | Chelan | 68 days |
| Apr 9, 11:01 AM PDT | River Flood Warning | OTX | Chelan | 7 days |
| Apr 7, 3:06 PM PDT | River Flood Warning | OTX | Chelan | 14 hr |
| Mar 24, 5:13 PM PDT | River Flood Warning | PDT | Kittitas | 41 hr |
| Mar 24, 2:43 PM PDT | River Flood Warning | SEW | King | 7 hr |
| Mar 20, 4:31 PM PDT | River Flood Warning | SEW | King | 58 hr |
| Mar 20, 4:16 PM PDT | River Flood Warning | SEW | Whatcom | 6 hr |
| Mar 20, 4:15 PM PDT | River Flood Warning | PDT | Benton | 4 days |
| Mar 20, 4:15 PM PDT | River Flood Warning | PDT | Yakima | 42 hr |
| Mar 20, 4:15 PM PDT | River Flood Warning | PDT | Kittitas | 18 hr |
| Mar 20, 1:23 PM PDT | River Flood Warning | SEW | Whatcom | 34 hr |
| Mar 20, 1:20 PM PDT | River Flood Warning | SEW | Snohomish | 8 hr |
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.