Bay Area Heat Wave: Heat Advisory Issued For Parts Of Bay Area

BAY AREA, CA — The first heat wave of the summer could develop this week and scorch parts of the San Francisco Bay Area.

A high-pressure system is expected to send temperatures above normal across inland areas, according to the National Weather Service.

A heat advisory will be in effect from 8 a.m. Tuesday to midnight Thursday for the Sonoma coastal range, North Bay interior mountains, North Bay interior valleys, East Bay interior valleys and East Bay hills. Daytime temperatures are expected in the 90s to near 100 degrees, according to the NWS.

A "moderate heat risk" is expected for the inland North Bay, the East and South Bays, and the inland Central Coast through Thursday, meaning that there's a moderate risk of heat-related illnesses for sensitive populations, including children, the elderly, pregnant women, and people with certain medical conditions, as well as anyone working outside without cooling or hydration.

"In addition, we're also starting to see 'major heat risk' in some areas of the North Bay valleys and far eastern Contra Costa County on Tuesday, corresponding to a major risk of heat-related illnesses to anyone without effective cooling, adequate hydration, or both," the NWS wrote.

In the Central Valley, an excessive heat warning will be in effect from 11 a.m. Wednesday to 8 p.m. Thursday for the San Joaquin Valley and lower Sierra Nevada foothills, where "dangerously hot conditions" are expected with temperatures from 103 to 108 degrees.

Forecasters advised people to drink plenty of fluids, stay in an air-conditioned room, stay in air-conditioned rooms, stay out of the sun, and check on relatives and neighbors. Weather officials also reminded residents that young children and pets should never be left unattended in vehicles.

"Hot temperatures may cause heat illnesses to occur," the NWS warned. "Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency. Call 911."