WGUS46 KSEW 201215

FLWSEW



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Flood Warning

National Weather Service Seattle WA

515 AM PDT Fri Mar 20 2026



...Forecast flooding changed from Minor to Major severity and 

increased in duration for the following rivers in Washington...



  Snohomish River Near Monroe affecting Snohomish County.



.Heavy rain in the Central Cascades Thursday into Friday morning 

will push the Snohomish river near Monroe into major flood stage 

around noon.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Turn around, don't drown when encountering flooded roads. Most flood 

deaths occur in vehicles.



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.



Additional information is available at www.weather.gov.



The next statement will be issued by this afternoon at 115 PM PDT.



&&



WAC061-202015-

/O.EXT.KSEW.FL.W.0022.000000T0000Z-260322T0814Z/

/MROW1.3.ER.260319T2300Z.260321T0600Z.260321T2014Z.NO/

515 AM PDT Fri Mar 20 2026



...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SUNDAY MORNING...



* WHAT...Minor flooding is occurring and major flooding is forecast.



* WHERE...Snohomish River near Monroe.



* WHEN...Until early Sunday morning.



* 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 4:15 AM PDT Friday the stage was 15.4 feet.

  - Flood stage is 15.0 feet.

  - Recent Activity...The maximum river stage in the 24 hours

    ending at 4:15 AM PDT Friday was 15.4 feet.

  - Forecast...The river is expected to rise to 17.0 feet around

    noon today. The river will keep rising this afternoon

    cresting near 18.1 feet tonight. The river will begin

    receding Saturday falling below flood stage late Saturday

    afternoon or evening.

  - http://www.weather.gov/safety/flood



&&



LAT...LON 4780 12190 4779 12212 4786 12217 4791 12203

      4793 12202 4793 12190





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