Heat Advisory issued August 26 at 3:52AM PDT until August 28 at 8:00PM PDT by National Weather Service Portland:
The National Weather Service in Portland has issued a Heat Advisory, which is in effect from 11 AM Tuesday to 8 PM PDT Wednesday. TEMPERATURES...Afternoon high temperatures of 93 to 99 degrees are expected Tuesday, with slightly less hot conditions on Wednesday. Temperatures will be very slow to cool, with overnight low temperatures only reaching the lower 60s for a few hours very early Wednesday morning before starting to warm up again.
TIMING...The warmest temperatures are expected Tuesday between 3 and 7 PM. Temperatures will be very slow to cool Tuesday night before starting to warm back up Wednesday.
IMPACTS...Hot temperatures and limited relief overnight will increase the chance for heat related illnesses, especially for those who are sensitive to heat. People most vulnerable include those who spend a lot of time outdoors, those without air conditioning, those without adequate hydration, young children, and the elderly.