Updated: Excessive Heat Warning Issued for East Puget Sound Lowlands: Tips for Keeping Cool

Updated: The Excessive Heat Warning is now in effect until 11 PM Wednesday.

The National Weather Service has issued an excessive heat warning for the East Puget Sound Lowlands through 11 p.m. today.

Even after that warning ends, Snoqualmie Valley area daytime temperatures are expected to hover in the mid to upper 90s, with nighttime lows in the mid to upper 60s until Thursday.

For detailed information on weather updates, visit the National Weather Service website at www.weather.gov/sew. Additional regional updates can be found by following King County Emergency News at www.kcemergency.com/

Health and Home Cooling Tips:

During extreme heat, your body works extra hard to maintain a normal temperature. Older adults, children, sick and overweight are at greater risk of the effects of extreme heat.

Learn the warning signs of heat illness by visiting the Centers for Disease Control and Prevention website at www.cdc.gov/disasters/extremeheat/warning

During Periods of extreme heat:

  • Find air conditioning
  • Avoid strenuous activities
  • Wear light clothing
  • Check on family members and neighbors
  • Drink plenty of fluids
  • Watch for heat cramps, heat exhaustion and heat stroke
  • Never leave people or pets in a closed car
  • Minimize extended time outside
  • Take a tepid shower or bath to cool down

Tips to Keep Your Home Cool:

  • Limit the use of electronics, as this contributes to heat generation
  • Do not rely on a fan as your primary cooling device
  • Cover windows with drapes or shades
  • Keep windows closed to keep heat out
  • Weather-strip doors and windows
  • Use window reflectors such as aluminum foil-covered cardboard to reflect heat outside
  • Add insulation to keep the heat out
  • Use a powered attic ventilator, or attic fan, to regulate the heat level of a building’s attic by clearing hot air
  • Install window air conditioners and insulate around them

As we move through the next couple of days, it’s important to be aware of all of the resources available to keep us cool in this heat:

Cooling Centers

Below is a list of the cooling centers in and close to the Snoqualmie Valley. Please check the links for times of operations and locations:



You can also visit a King County Library System (KCLS) location, which will be open and used for cooling shelters. For a full list of cooling centers around King County, visit this link.

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