« View county listFlood Watch
359 AM PST Tue Nov 21 2017
...FLOOD WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH
The Flood Watch continues for
* Portions of northwest Washington and west central Washington,
including the following counties, in northwest Washington,
Clallam, Grays Harbor, Jefferson, Mason, Skagit, and Whatcom.
In west central Washington, King, Lewis, Pierce, Snohomish,
* From this afternoon through Thursday afternoon
* A warm front and the plume of subtropical moisture with it will
bring 2 to 5.5 inches of rain to the Olympics and Mount Rainier
today and tonight, and 1 to 4 inches of rain to the Cascades
north of Mount Rainier. The snow level will be near 8000 feet. A
second frontal system will bring another 1 to 4 inches on
Wednesday night and Thursday, with the snow level falling from
7000 feet to 4000 feet as the system moves through.
* The two systems in close succession presents a threat of
flooding on rivers in Western Washington. Flooding could begin
tonight or Wednesday. It looks like the threat is for a
relatively minor flooding episode.
* Models show several rivers cresting near or just above flood
stage including the Skokomish, Cowlitz, Nisqually, White,
Snoqualmie, Stillaguamish, Skagit, and Nooksack. However, this
doesn't mean that the possibility of flooding is limited to
A Flood Watch means there is a potential for flooding based on
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.
$$Special Weather Statement
San Juan County-Western Whatcom County-Southwest Interior-
Western Skagit County-Everett and Vicinity-Tacoma Area-
Admiralty Inlet Area-Hood Canal Area-Lower Chehalis Valley Area-
Olympics-Eastern Strait of Juan de Fuca-
Western Strait of Juan De Fuca-North Coast-Central Coast-
East Puget Sound Lowlands-Bellevue and Vicinity-Seattle and Vicinity-
Bremerton and Vicinity-
404 AM PST Tue Nov 21 2017
...HEAVY RAINFALL TODAY AND TONIGHT WILL LEAD TO AN INCREASED THREAT
OF LANDSLIDES IN WESTERN WASHINGTON...
Recent rains have increased soil moisture to high levels across
Western Washington, with heavy rainfall expected at times today and
tonight. At the coast, rainfall amounts of 1 to 2 inches are likely,
with a half to one and a half inches over the interior lowlands.
This amount of rain will lead to an increased threat of landslides.
For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.
For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn