National Weather ServiceWashingtonFlood WarningArchive to October 1, 2026
Flood Warnings in Washington
The National Weather Service issued 118 flood warnings for Washington in 2025 and 87 a year on average in 2008-2025; in 2021-2025 it had the 21st most of any state. 2026 through September: 63, 38% above the average of 46 for those months in 2008-2025. Snohomish was covered most often (254 times since 2008).
How many flood warnings does Washington get?
Every flood warning that covered part of Washington. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 63 |
| 2025 | 118 |
| 2024 | 25 |
| 2023 | 54 |
| 2022 | 110 |
| 2021 | 123 |
| 2020 | 103 |
| 2019 | 54 |
| 2018 | 67 |
| 2017 | 145 |
| 2016 | 64 |
| 2015 | 173 |
| 2014 | 92 |
| 2013 | 24 |
| 2012 | 69 |
| 2011 | 127 |
| 2010 | 56 |
| 2009 | 99 |
| 2008 | 69 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Washington get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Washington?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Snohomish | 254 | 36 | March 20, 2026 |
| King | 202 | 28 | March 24, 2026 |
| Mason | 193 | 37 | March 20, 2026 |
| Lewis | 140 | 16 | March 14, 2026 |
| Wahkiakum | 104 | 18 | March 13, 2026 |
| Pierce | 102 | 14 | December 18, 2025 |
| Whatcom | 82 | 17 | March 21, 2026 |
| Thurston | 78 | 12 | March 14, 2026 |
| Clallam | 74 | 7 | December 10, 2025 |
| Grays Harbor | 71 | 13 | March 14, 2026 |
| Yakima | 69 | 7 | March 21, 2026 |
| Skagit | 55 | 11 | March 21, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flood warnings for Washington in AreaZine's record
NWS SpokaneWarningJune 20, 2026
Flood Warning: Chelan, WA
Expired 12:15 p.m. PDT, June 21, 2026
NWS SpokaneWarningApril 11, 2026
Flood Warning: Chelan, WA
Expired 8:28 p.m. PDT, April 12, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flood warning?
A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Washington.