North Bay Cities Under Excessive Heat Warning

SOLANO and YOLO COUNTIES, CA -- A forecast for high temperatures Sunday and Monday in the San Francisco Bay and Sacramento areas has prompted the National Weather Service to issue excessive heat warnings and advisories for some areas. In Solano County, an excessive heat warning is in effect from 11 a.m. Sunday until 8 p.m. Monday for areas in the Central and Southern Sacramento Valley and the Carquinez Strait and Delta, including Davis, Dixon, Vacaville, Fairfield, Suisun City, Vallejo and Benicia.

Daytime highs will range 100 to 110 degrees, according to the National Weather Service.

"An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur," according to the NWS. "The combination of hot temperatures and high humidity will combine to create a DANGEROUS SITUATION in which heat illnesses are likely. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances.

"Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water."

Elsewhere in the Bay Area, a heat warning is in effect until 9 p.m. Monday for the Santa Lucia Mountains, the East Bay Hills and Diablo Range, and interior Monterey County, including Pinnacles National Park and the southern Salinas Valley.

Weather officials said high temperatures of 98 to 112 degrees are expected Sunday and Monday. Lows will mostly be in the 60s and 70s but may not get below the low 80s in the hills.

Another warning goes into effect at 11 a.m. Sunday and ends at 9 p.m. Monday for the North Bay Mountains and the Santa Cruz Mountains. Highs will reach 95 to 105 degrees both days. Lows will mostly be in the 60s in the valleys and 70s to lower 80s in the hills.

A third warning has been issued for the inland valleys of the East Bay. At 5:05 p.m. Saturday, weather officials upgraded a heat advisory for this area to an excessive heat warning, which goes into effect at 11 a.m. Sunday and ends at 9 p.m. Monday. Weather officials said highs of 98 to 108 degrees are expected Sunday and Monday. Lows will mostly be in the 60s.

Other inland valleys of the San Francisco Bay Area will be under a heat advisory starting at 11 a.m. Sunday. The advisory ends at 9 p.m. Monday.

Pets and livestock may require extra care during the heat. Also, the heat increases the risk of human-sourced wildfires, according to weather officials.

Bay City News Service contributed to this report.

Image via National Weather Service San Francisco Bay Area