Washington County weather alerts
There are no active weather alerts for Washington County, OR right now.
Since 2016 the National Weather Service has issued about 60 alerts that included Washington County, roughly 6 a year. The most common is the flood advisory (42 from 2016 to 2025). No tornado warnings were recorded here in that period. 7 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 Washington County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Columbia County, Yamhill County, Clackamas County, Multnomah County.
Washington County alert history
Alert events that included Washington County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 42 | 2 | November 10, 2026 |
| Flood Warning | 14 | 0 | December 19, 2025 |
| Severe Thunderstorm Warning | 3 | 0 | February 25, 2025 |
| Severe Thunderstorm Watch | 1 | 0 | March 26, 2025 |
Tornado history in Washington County
7 tornadoes have been recorded in Washington County since 1950. That ranks 4 of 36 counties in Oregon. The most recent was on October 29, 2018 (rated EF0).
Strongest tornadoes in Washington County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 8, 1993 | F2 | Yamhill County | 6 mi | 120 yd | 0 | 0 |
| November 12, 1991 | F1 | Washington County | 0.2 mi | 40 yd | 0 | 0 |
| October 22, 1954 | F0 | Washington County | 0.5 mi | 17 yd | 0 | 0 |
| June 23, 1966 | F0 | Washington County | 0.3 mi | 30 yd | 0 | 0 |
| October 13, 1968 | F0 | Washington County | 0.1 mi | 13 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 29, 2018 | EF0 | Washington County | 0.1 mi | 20 yd | 0 | 0 |
| June 18, 2004 | F0 | Washington County | 0.1 mi | 20 yd | 0 | 0 |
| December 8, 1993 | F2 | Yamhill County | 6 mi | 120 yd | 0 | 0 |
| November 12, 1991 | F1 | Washington County | 0.2 mi | 40 yd | 0 | 0 |
| October 13, 1968 | F0 | Washington County | 0.1 mi | 13 yd | 0 | 0 |
About Washington County
- Population: 611,272 (2024 estimate)
- State: Oregon
- NOAA Weather Radio SAME code: 041067 (how to use it)
- Cities: Hillsboro