Flood watch for the Nooksack River in Whatcom County

A warm front will bring the first round of light to moderate rainfall to western Washington tonight through Sunday evening. By late Sunday night the stronger portion of the frontal system will sag southward with heavy rain developing first over the Olympics...then over the north cascades on Monday. Light to moderate rain will also develop over the central cascades but Flooding is not expected there.

Flooding is not a concern on the green river in king county at This time.


Grays Harbor-Jefferson-Mason-Whatcom-
242 pm pst sat Nov 14 2009

Flood watch in effect from late Sunday night through Tuesday afternoon...

The national weather service in Seattle has issued a * flood watch for portions of western Washington...including the following counties... Grays Harbor...Jefferson...Whatcom...and   Mason.



Heavy rain in the Olympics Monday through Tuesday could drive some rivers to flood stage. The Skokomish river in Mason County iIs the river most likely to rise above flood stage during the watch period. Other rivers in the Olympic peninsula basin susceptible to strong southwest flow such as the Sat Sop river are   also at risk.The Nooksack river in Whatcom county will also rise sharply.  Current forecast models indicate the heavier rain in the north  Cascades will occur late Monday afternoon through Tuesday. If   Flooding does develop on the Nooksack river it most likely would   Not occur until Monday night or Tuesday.


Precautionary/preparedness actions...

A flood watch means conditions are favorable for flooding but Flooding is not imminent or occurring. Monitor the latest Forecasts from the national weather service and be ready to act quickly if flooding is observed or a warning is issued.

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