Flood Warning Washington | Effective 03/21/2026 09:05

Headline: 
Flood Warning issued March 21 at 9:05AM PDT until March 22 at 12:07PM PDT by NWS Seattle WA
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
March 21, 2026 - 9:05am
Expires: 
March 21, 2026 - 5:15pm
Description: 
...The Flood Warning is extended for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...Snohomish River near Monroe. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 17.0 feet, the Snohomish River will cause major flooding...inundating farm land...roads...and some residential areas. Levees will likely suffer damage. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 17 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System. * ADDITIONAL DETAILS... - At 8:15 AM PDT Saturday the stage was 18.1 feet. - Flood stage is 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:15 AM PDT Saturday was 18.5 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and return to action stage by late Sunday night. It will continue falling to 5.8 feet Tuesday afternoon. - Flood History...This crest compares to a previous crest of 18.0 feet on 02/16/1982. - http://www.weather.gov/safety/flood
Instruction: 
Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon at 515 PM PDT.
Area Description: 
Snohomish, WA
Forcast Office: 
NWS Seattle WA
Sender: 
w-nws.webmaster@noaa.gov