Western Washington’s flood season usually runs from late October through March and mirrors the rainy season. Washington averages about one presidentially declared disaster per year, going back to 1950. About half of those disaster declarations involved major flooding.

Every once in a while, the region gets an extended heavy rain event that results in major river flooding and often a disaster declaration. Some recent big floods included early November 2006, early December 2007, early January 2009, and it was 4 years ago this week that Whatcom County suffered major flooding from a heavy rainfall event.

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