An extreme heat watch has also been issued from Wednesday afternoon through Saturday evening for much of the Southern California region. Weather officials say the hot conditions will increase the risk of heat illness for everyone, especially vulnerable populations, including young children, the elderly and those without air conditioning.

An extreme heat watch was released by the National Weather Service on Tuesday at 5:09 p.m. valid from Friday 11 a.m. until Sunday 5 a.m. for East Portland Metro, West Columbia River Gorge I-84 Corridor,

A heat wave this week is likely to bring dangerously hot conditions and increased wildfire risk to parts of California, including in the Bay Area.