King County weather alerts
There are no active weather alerts for King County, WA right now.
Since 2016 the National Weather Service has issued about 240 alerts that included King County, roughly 24 a year. The most common is the flood warning (114 from 2016 to 2025). No tornado warnings were recorded here in that period. 5 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include King County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Pierce County, Chelan County, Kittitas County, Snohomish County.
King County alert history
Alert events that included King County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Warning | 114 | 7 | March 24, 2026 |
| Flood Advisory | 41 | 0 | December 11, 2025 |
| Flood Watch | 39 | 1 | March 18, 2026 |
| Wind Advisory | 11 | 2 | March 11, 2026 |
| Winter Weather Advisory | 8 | 9 | October 28, 2026 |
| Severe Thunderstorm Warning | 6 | 0 | August 18, 2024 |
| Flash Flood Warning | 6 | 0 | December 16, 2025 |
| Heat Advisory | 6 | 4 | August 5, 2026 |
| Frost Advisory | 2 | 3 | October 31, 2026 |
| Winter Storm Warning | 2 | 3 | April 14, 2026 |
| Blizzard Warning | 1 | 1 | March 12, 2026 |
| High Wind Watch | 1 | 0 | December 17, 2025 |
| Severe Thunderstorm Watch | 1 | 0 | March 26, 2025 |
| Winter Storm Watch | 1 | 3 | April 14, 2026 |
| Extreme Heat Warning | 1 | 0 | August 22, 2025 |
Tornado history in King County
5 tornadoes have been recorded in King County since 1950, injuring 1 people. That ranks 8 of 39 counties in Washington. The most recent was on June 11, 2001 (rated F0).
Strongest tornadoes in King County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 12, 1969 | F3 | King County | 3.8 mi | 100 yd | 0 | 1 |
| December 22, 1971 | F1 | King County | 0.5 mi | 20 yd | 0 | 0 |
| September 28, 1962 | F1 | King County | 0.1 mi | 30 yd | 0 | 0 |
| August 18, 1964 | F0 | King County | 5.2 mi | 30 yd | 0 | 0 |
| June 11, 2001 | F0 | King County | 0 mi | 0 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 11, 2001 | F0 | King County | 0 mi | 0 yd | 0 | 0 |
| December 22, 1971 | F1 | King County | 0.5 mi | 20 yd | 0 | 0 |
| December 12, 1969 | F3 | King County | 3.8 mi | 100 yd | 0 | 1 |
| August 18, 1964 | F0 | King County | 5.2 mi | 30 yd | 0 | 0 |
| September 28, 1962 | F1 | King County | 0.1 mi | 30 yd | 0 | 0 |
About King County
- Population: 2,340,211 (2024 estimate)
- State: Washington
- NOAA Weather Radio SAME code: 053033 (how to use it)
- Cities: Seattle, Bellevue, Kent, Renton, Federal Way