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Seattle/Tacoma – WA, US, National Weather Service
Portions of northwest and west central Washington
…EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH SATURDAY EVENING…
WHAT…Hot conditions with heat index values up to 98-100 possible. Puget Sound: 94-98 degrees. South Sound and Chehalis Valley: 97-101 degrees. Western slopes of the Cascades: 92-98 degrees.
WHERE…Portions of northwest and west central Washington.
WHEN…From Wednesday afternoon through Saturday evening.
IMPACTS…Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.
ADDITIONAL DETAILS…Nighttime relief Thursday, Friday and Saturday morning will be poor across Eastern Puget Sound, the adjacent Cascade foothills and in the Seattle metro area away from the water. Overnight lows will be in the mid to upper 60s.
Monitor the latest forecasts and warnings for updates on this situation. Be prepared to drink plenty of fluids, stay in an air- conditioned room, stay out of the sun, and check up on relatives and neighbors.
Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.