FloodZoneMap.org

Flood — Snohomish, WA

Nov 17, 2015

The Elwha River flexed its new muscles during the most recent round of storms and severely damaged Olympic Hot Springs Road and effectively buried a campground in silt.|The river rose to 23.19 feet, major flood, on Nov. 17 during a heavy rainstorm that produced 5.6 inches of rain on that date in the Elwha watershed.|When the water receded, Olympic National Park officials discovered the water had washed out a 60-foot-long section of Olympic Hot Springs Road, and much of Elwha Campground had nearl

Source: NOAA National Weather Service Storm Events Database (event 607347). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Snohomish, WA

This event is one of many recorded floods in Snohomish County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Snohomish County flood data →

More Flood Stories

Flood$2.4M damage

Snohomish, WA · Nov 12, 2021

An upper level trough Gulf Low continued off the west coast that brought a series of atmospheric rivers resulting in flooding across parts of western Washington. This second atmospheric river episode of the month was a set of three atmospheric rivers back-to-back-to-back.

Read the full account →
Flood$329K damage

Snohomish, WA · Jan 12, 2021

The period from January 10 to 16 continued a pattern of a strong and persistent Aleutian Low pressure system in the eastern Pacific that began December 29, 2020 and which directed the jet stream and primary storm track at Washington State.

Read the full account →
Flood$6.5M damage

Snohomish, WA · Jan 7, 2009

Rainfall of 8-20 inches in the mountains and 1 to 9 inches in the lowlands occurred from Jan 6th through 8th. Flooding was widespread over much of Western Washington. Record flooding occurred on the Snoqualmie, Tolt, and North Fork Stillaguamish Rivers.

Read the full account →
Flood$3.3M damage

Snohomish, WA · Nov 4, 2006

A strong, warm and very wet Pacific weather system brought copious amounts of rainfall to Washington from November 2 through 7, with subsequent major flooding that extended through November 11.

Read the full account →