Rain and thunderstorms will affect Portland and parts of interior Oregon Friday.
A slow-moving storm system will continue to drift inland from the Pacific Ocean during the day, producing rounds of rain and thunder.
While the threat for severe thunderstorms has greatly decreased, rainfall can be heavy at times, creating the risk for flooding across northern Oregon. In the higher terrain, there is a continued threat for mudslides.
A couple of stronger thunderstorms can contain gusty winds and hail, especially across eastern Washington and northern Idaho.
On Thursday, heavy showers and thunderstorms produced 1 to 1.5 inches of rain in one hour in Salem, Ore. Hail the size of golf balls was reported in Bend, Ore. and winds gusted 60 to 70 mph just west of Redmond, Ore.
Wind damage was reported in Pendleton, Ore., and there were reports of mudslides to their north and east.
Over the weekend, the storm system will move toward the northern Rockies and high pressure will build in from the west. This will allow a warming and sunny trend over the region.
Another visit from the Polar Vortex will deliver unseasonably cool air to the Midwest, preceded by rounds of thunderstorms, including severe weather.
As the Northeast continues to clean up from destructive storms early this week, more rounds of severe weather loom for early next week.
Welcome dry weather for cleanup efforts across Japan in the wake of Neoguri will be brief.
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Days after Neoguri takes a curved path over Japan and into the northern Pacific, much cooler air will drive southeastward across the Midwest and into the Northeast.
Heat-related dangers will be on the rise over the weekend for much of the Northwest as scorching heat settles in.
Saskatchewan, Canada (1990)
Two tornadoes touched down northwest of Moose Jaw.
Central Park, NYC (1993)
High of 103 degrees tied the record for the day set in 1936. Also the third straight day over 100 degrees, tying the mark set in 1948.
Dust storm between Red Rock and Pichacho cuts visibility to near zero along I-10. 12 accidents resulted, injuring 25.