Saturday, May 27, 2017

How long will the near-record warmth last in northwestern US?

By Renee Duff, AccuWeather meteorologist
May 27,2017, 2:44:29PM,EDT
 Another bout of summerlike air will surge across the northwestern United States through Monday, before temperatures begin to tumble by midweek.
It will feel more like the Fourth of July than Memorial Day weekend from Seattle to Portland and Medford, Oregon.
“Highs will be within a few degrees of record levels on Sunday and Monday,” AccuWeather Senior Meteorologist Alex Sosnowski said.
NW heat May 27
Daytime temperatures will soar into the lower to middle 80s in Seattle, which is well above the normal high of 67 degrees Fahrenheit for this time of year.
Temperatures could touch 90 for the second time so far this year in Portland. In 2016, it took until June 4 for the city to reach 90 or above for the first time.
Highs will approach 100 in The Dalles, Oregon, where a daytime temperature of 76 to 77 is more typical.
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“The weather across the West in general will be ideal for most outdoor plans ranging from honorary gatherings to hiking, attending ball games and fishing,” Sosnowski said.
Anyone seeking relief from the heat at the beach or a lake should be mindful that water temperatures are dangerously low this early in the season.
Pac NW midweek cooldown 5.27 AM

By Wednesday, the expansive area of high pressure responsible for the heat wave will be pushed eastward toward the Rockies by a Pacific storm.
Temperatures are forecast to be slashed by up to 15 to 20 degrees at midweek, mainly across the Pacific Northwest.
Temperatures will return to seasonable levels, despite the significant drop.
The press of cool air will be marked by an increase in clouds and a few showers with rumbles of thunder, mainly along the Washington and Oregon coasts and over the Cascades.
As the cooldown commences to the west, the core of the heat will shift farther inland into places such as Boise, Idaho, and Salt Lake City, Utah, during Tuesday and Wednesday.

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