Flood Warning Washington | Effective 03/19/2026 03:29

Headline: 
Flood Warning issued March 19 at 3:29AM PDT until March 21 at 4:00AM PDT by NWS Seattle WA
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
March 19, 2026 - 3:29am
Expires: 
March 19, 2026 - 11:30am
Description: 
...The Flood Warning continues for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. Snoqualmie River Near Snoqualmie Falls affecting King County. ...The Flood Warning is extended for the following rivers in Washington... Tolt River Above Carnation affecting King County. Snoqualmie River Near Carnation affecting King County. * WHAT...Minor flooding is forecast. * WHERE...Tolt River above Carnation. * WHEN...Until early Saturday morning. * IMPACTS...At 5,000.0 cfs, the Tolt River will flood Tolt River Rd NE and many driveways. Some homes in the San Souci area could be inaccessible due to deep and quick flood waters. This river level on the Tolt corresponds to a phase 3 flood in the King County flood system. * ADDITIONAL DETAILS... - At 1:15 AM PDT Thursday the flow was 3,390.0 cfs. - Flood flow is 5,000.0 cfs. - Forecast...The river will fall to near 3,300 cfs early this morning. It will begin rising later this morning cresting around 5,600 cfs Friday afternoon. The river will recede below flood stage Friday night. - http://www.weather.gov/safety/flood
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by this morning at 1130 AM PDT.
Area Description: 
King, WA
Forcast Office: 
NWS Seattle WA