Flood Watch

Flood Watch
National Weather Service Seattle WA
440 AM PST Sat Dec 6 2025

.A series of wet weather systems moving across the region will
increase the threat of river flooding early next week.

WAC009-027-029-031-033-035-041-045-053-055-057-061-067-073-070100-
/O.CON.KSEW.FA.A.0012.251208T1200Z-251213T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clallam-Grays Harbor-Island-Jefferson-King-Kitsap-Lewis-Mason-
Pierce-San Juan-Skagit-Snohomish-Thurston-Whatcom-
Including Tumwater, Chehalis, Seattle, Everett, Anacortes, Port
Townsend, Lacey, Friday Harbor, Edmonds, Freeland, Hoquiam,
Bremerton, Sedro-Woolley, Burlington, Mount Vernon, Langley,
Marysville, Aberdeen, Silverdale, Shelton, Olympia, Sequim, Fords
Prairie, Tacoma, Lynnwood, and Bellingham
440 AM PST Sat Dec 6 2025

...FLOOD WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
FRIDAY AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...Portions of northwest and west central Washington,
  including the following counties, in northwest Washington,
  Clallam, Grays Harbor, Island, Jefferson, Kitsap, Mason, San Juan,
  Skagit and Whatcom. In west central Washington, King, Lewis,
  Pierce, Snohomish and Thurston.

* WHEN...From late Sunday night through Friday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - An atmospheric river moving into the region early next week
    will bring periods moderate to heavy rain to the region.
    Sharp rises will be possible on area rivers, especially those
    flowing off the Olympics and Cascades.

    Urban and small stream flooding is possible for areas with
    poor drainage.

    Saturated soils will bring increased potential for landslides
    and debris flows on burn scars.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

JD

Hydrologic Outlook

Hydrologic Outlook
WAC007-047-070430-

Hydrologic Outlook
National Weather Service Spokane WA
816 PM PST Fri Dec 5 2025

...RIVER RISES AND AN INCREASED RISK OF MUD AND ROCK SLIDES NEXT
WEEK FOR THE CASCADES...

A series of warm, wet, and breezy weather systems will result in
periods of high mountain snow and heavy low to mid elevation rain
for the Washington Cascades next week. Snow levels will fluctuate
between 3000 and 5000 feet. Lower elevation snowmelt in addition to
the rainfall will lead to rises on small creeks and streams. This
will also bring an increased risk for mud and rock slides in areas
of steep, snow-free terrain and recently burned areas.
$$

OTX

Hydrologic Outlook
WAZ027-522-523-070015-

Hydrologic Outlook
National Weather Service Pendleton OR
303 PM PST Thu Dec 4 2025

...RIVERS RISING IN THE WASHINGTON CASCADES EARLY NEXT WEEK...

A series of weather systems will bring rain and rising river levels
to the area, especially the Washington Cascades, through this
weekend. Another system fed by a strong atmospheric river early next
week will bring heavier rain amounts. Currently a few locations on
the Naches and Yakima Rivers are forecast to reach action stage
starting Tuesday and Wednesday but the chances of reaching minor
flood stage are very low.


$$

GP