PORTLAND, Ore. (KOIN) — The National Weather Service office in Portland has issued a heat advisory from 8:00 AM to 11:00 PM Sunday for the Portland / Vancouver metro area, extending north through Longview / Kelso.
Temperatures are expected to be as high as 85-90 degrees on Sunday, which would be 20 to 25 degrees above average.
A ridge of high pressure will continue to strengthen over the area this weekend as a weak disturbance moves by to the south Saturday morning…