The National Weather Service in Seattle has issued an excessive heat warning, which is in effect from 2 p.m. Thursday to 9 p.m. Saturday.
High pressure aloft and low level offshore flow will result in an extended period of hot weather for Western Washington Thursday through Saturday. Record highs are likely in many locations. The hottest days at the coast will be Thursday and Friday with cooling on Saturday. The hottest days for the interior will be Friday and Saturday.
Southwest interior, Tacoma area, Hood Canal area, lower Chehalis Valley area, East Puget Sound lowlands, Bellevue and vicinity, Seattle and vicinity and Bremerton and vicinity.
Max temperatures, mid 80s to lower 90s on Thursday. Upper 80s to mid 90s on Friday and Saturday. Friday will probably be the hottest day of the three days but Saturday could be about the same.
Mid temperatures, in the 50s, except lower to mid 60s in the Seattle metro area.
Impacts sensitive groups like the elderly and those working or exercising outdoors may experience adverse health effects such as dehydration or heat-related illness.
Precautionary/preparedness actions
An excessive heat warning means that a prolonged period of dangerously hot temperatures will occur, creating a situation in which heat illnesses are likely. Drink plenty of fluids (not alcohol), seek an air conditioned place, stay out of the sun and check up on neighbors and relatives.
Never leave children, pets or the elderly unattended in a parked vehicle under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.
