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Heat advisory extended through Saturday

It was almost inevitable, but the National Weather Service made it official Wednesday.

A heat advisory issued for parts of southwest Oregon and Northern California earlier this week will be in effect through at least Saturday afternoon instead of Thursday night, the Weather Service reported.

“We kind of knew the advisory could be extended all the way out,” said National Weather Service meteorologist Miles Bliss. “The biggest factor has been the low temperatures at night.”

Through Sunday, overnight low temperatures will range from 64 to 67 degrees for Medford, 10 to 13 degrees above the normal 54-degree mark. Daytime high temperatures will range from 101 to 105 during the same period. The mercury climbed to 102 degrees in Medford on Tuesday, cooling to 63 degrees overnight.

“When you have days and days of that, it starts to wear on people,” Bliss said.

A ridge of high pressure that pushed inland from the Pacific and set up shop over Nevada and Arizona is the cause of our sizzling conditions. The heat advisory covers most of Jackson, Josephine, Douglas, Curry and Siskiyou counties and is in effect until 11 p.m. Friday, according to a Weather Service bulletin. High temperatures at or above 100 degrees will likely continue through the weekend.

“The long duration nature of this event could affect even those who aren’t normally impacted by heat stress,” the bulletin said.

Residents should drink plenty of fluids, stay out of the sun and be in air-conditioned rooms if possible. Those who must be outside should wear lightweight, loose-fitting clothing and take frequent breaks. Checking up on relatives and neighbors is also important, Weather Service officials said.

Reach web editor Ryan Pfeil at 541-776-4468 or rpfeil@rosebudmedia.com. Follow him on Twitter @RyanPfeil.

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