skip to main content

Regional flood preparedness


Prepare now for floods

Serious flooding may occur in some areas of King County this winter. Homes, farms and businesses located within a floodplain are particularly at risk. Residents should prepare now for the winter season.

Icon: Make a plan

Emergency Flood Kit Checklist


What to do with clean sand and sandbags

Flooded residence - clip art Washington Flood Market Assistance Plan (external link)
Subscribe to and receive alerts and updates during emergency events. Note: When registering your cell phone or pager for text based RPIN alerts, type your 10-digit number (without dashes or spaces), the "@" symbol and your phone line carrier. Example:

Are you ready?

  • Make an emergency plan and assemble an emergency kit.
  • Buy flood insurance now; it takes 30 days for a policy to take effect. Review your current policy; a standard insurance policy will not cover flood damage. Contact your insurance agent or use the link above.
  • Purchase an inexpensive AM radio or NOAA weather radio with batteries in case of power outages for urgent news day and night.
  • Monitor area news media for information if severe weather is predicted.
  • Listen for alerts about evacuation routes or find the latest evacuation route information.
  • Monitor local road conditions and obey closure signs.
  • Take medications and supplies with you, for those with medical needs.
  • Be ready to relocate animals and livestock out of harm's way.
  • Know where to go for current flood data: King County flood warning system.
  • Minimize flood damage:
    1. Store valuables and electronics higher on the ground floor, on the second story or in your attic.
    2. Keep hazardous chemicals out of floodwaters - businesses and residents (PDF).
    3. Ensure underground storage tanks are sealed and secure.
    4. Learn how to use sandbags and locate where you can buy or get them ahead of time if needed for flood fighting.
    5. Move vehicles and equipment to high ground before flood waters rise.
    6. Keep storm drains free of leaves and other debris.
    7. Know who to call and how to protect yourself if flooding leads to sewer overflows into homes and businesses.

Flood-damaged Property?

Please contact Department of Assessments or call 206-296-7300 if your property has been damaged or destroyed. If you own property in King County and wish to file a Destroyed Property claim, please fill out the King County Destroyed Property Form. For additional information about property tax relief available to flood and storm victims, please visit Washington State's Dept. of Revenue site (external link).

Flood Safety

Video: Flood safety (multilingual) video
Flood safety video - multiple languages                King Count flood alert

Flooding in the Green River Valley

prepare for flood

Residents, businesses and farms below the Howard Hanson Dam in the Green River Valley should prepare each year for potential flooding. Parts of Auburn, Kent, Renton and Tukwila could be flooded and evacuations in some communities are possible during a flood event.

Evacuation plans and routes are now available. Prepare now by identifying several alternate transportation routes from your home or business to higher ground.