WGUS86 KSEW 190259

FLSSEW



Flood Statement

National Weather Service Seattle WA

759 PM PDT Wed Mar 18 2026



...The Flood Warning is extended for the following rivers in 

Washington...



  Tolt River Above Carnation affecting King County.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 late tonight at 400 AM PDT.



&&



WAC033-191100-

/O.EXT.KSEW.FL.W.0017.000000T0000Z-260321T1059Z/

/TOLW1.1.ER.260318T1403Z.260318T1645Z.260321T0159Z.NO/

759 PM PDT Wed Mar 18 2026



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



* 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 6:15 PM PDT Wednesday the flow was 4,230.0 cfs.

  - Flood flow is 5,000.0 cfs.

  - Forecast...The river will continue to fall, reaching its

    lowest flow at 3,343.7 cfs late tonight. It expected to begin

    rising again by early Thursday afternoon, achieving flood

    stage by late Friday morning and reaching a secondary crest

    at 5,447.4 cfs by late Friday afternoon. It will fall below

    flood stage again Friday night.

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



&&



LAT...LON 4768 12176 4761 12185 4761 12194 4767 12196

      4771 12189 4774 12184





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