PORTLAND, Ore. (AP) — Heat wave duration records could be broken in the Pacific Northwest this week and authorities are expanding capacity at some cooling centers as temperatures near triple digits are forecast to extend into the weekend. The National Weather Service has extended the excessive heat warning for Portland, Oregon, from Thursday through Saturday evening. The NWS forecasts temperatures near 100 degrees for the next several days. The agency also predicts Portland could break its previous heat wave duration records of six consecutive days that are 95 degrees or warmer. Oregon Gov. Kate Brown has declared a state of emergency for much of the state.
Temperatures could hit triple digits again in Northwest
