Seattle expected to set all-time record longest stretch of 90-degree highs Sunday
The persistent heat wave gives one last gasp Sunday before waning as we head into the work week. Temperatures Sunday afternoon will top out in the 90s one last time for Seattle before dropping off on Monday.
The forecast high of low 90s in Seattle Sunday will be day six consecutive days of high temperatures reaching 90 degrees or warmer at Sea-Tac. This stretch of six straight days above 90 would set an all-time record at Sea-Tac for the past 77 years. On Saturday, we tied 2015 and 1981 for the longest stretch of 90-degree days at five, and Sunday's forecast calls for day six of the 90s.
Seattle is not the only location adding to the record books. During this heat wave, several daily record high temperatures were broken in western Washington. On Tuesday Bellingham (90), Olympia (97) and Seattle (94) all broke previous daily high records, and on Saturday Olympia (99) and Shelton (99) broke previous daily high records.
With one last day of heat, heat alerts do continue for most of western Washington. The National Weather Service (NWS) issued the advisories warning residents that the extended heat could pose a moderate to a significant risk of heat-related illnesses, “especially those who are heat sensitive and those without effective cooling or adequate hydration."
https://www.msn.com/en-us/weather/topstories/seattle-expected-to-set-all-time-record-longest-stretch-of-90-degree-highs-sunday/ar-AA109A83