Temperatures Continue to Climb

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An excessive heat warning is in effect for western Oregon Thursday and Friday as temperatures are expected to climb to near 100 degrees both days.

The ridge of high pressure that is keeping us clear and in the 90s every day this week will grow even stronger today. At the same time a thermal trough moved in from Northern California. This will not only bring up the warm air from California, but it will shift our winds from the east.

East winds in western Oregon mean only one thing…hot weather!  The air compresses as it slides down the west slopes of the Cascades, which will push us to near 100 degrees for both Thursday and Friday for the Valley and Umpqua Basin. The southern coast will continue to see mild weather with highs in the mid 60s, although the north coast will see some of that warm air and will likely see 70s and possibly 80s.

This thermal trough will break down and move northeast Friday. The atmosphere will still be very warm Friday, but as the winds shift back to the south, we’ll see our temperatures drop a bit.

By Saturday the entire column of air will cool down and temperatures will drop about 10 degrees, but at the same time thunderstorms will begin to fire up and the fire danger will continue to be very high.

By Sunday we’ll be back to normal with low to mid 80s all next week.

Have a great Thursday and do what you can to stay cool!

Meteorologist Melissa Frey
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