At 9:40 p.m. on Saturday, the NWS Seattle WA released an updated heat advisory valid from Monday 11 a.m. until Wednesday 11 p.m. The advisory is for Foothills and Valleys of Snohomish and Northern King Counties, Foothills and Valleys of Central King County, Foothills and Valleys of Pierce and Southern King Counties, Downtown Everett / Marysville Area, Shoreline / Lynnwood / South Everett area, Eastside, City of Seattle, Lowlands of Pierce and Southern King counties and Eastern Kitsap County.
