Friday is forecast to be the hottest day of the week with indoor areas skyrocketing in the mid-90s and low 100s this afternoon. Locations along the coast and along the bay are projected to be from the 1970s to the mid-1980s. The hot weather is accompanied by high pressure buildings over California. “When you have high blood pressure it means that the air sinks to the ground and heats up as it does,” said Brooke Bingman, a meteorologist. “It creates this hot air canopy.” The meteorological service issued a heat warning for Friday in inland parts of the North Bay, East Bay, South Bay, Santa Cruz Mountains and the interior of the Central Coast. Excessive heat warning will be issued in Solano County on Friday. Heat risk levels. Mostly moderate near the bays and high towards the central valley. pic.twitter.com/ys4I9pE9s9 – NWS Bay Area 🌉 (@NWSBayArea) June 10, 2022 The Gulf Air Quality Management District issued a Spare the Air warning for Friday with air quality expected to decline. The service asks the public to avoid driving to help prevent the accumulation of unhealthy smog. PG&E spokeswoman Tamar Sarkissian said the public company was prepared for the heat with crews available to work around the clock in the event of a heat-related outage. PG&E is not planning a power outage as the risk of fire is not expected to be high with this event. Heat-related outages are more likely to occur due to transformer failure. Transformers, which help distribute electricity to homes and businesses, take periods of time to cool, and this usually happens overnight when temperatures drop, Sarkissian explained in an email. “When we have unusual heat phenomena with constant high temperatures overnight, the transformers can not cool down,” he said. “This puts pressure on the transformer components and they can get tired and fail.” “The bay area will start to get cold on Saturday. The sea breeze will swell and help us cool down,” Bingman said. “The interiors will still be around 90s, but it will not be as warm with the lows until the mid-90s.” Sunday marks a more significant drop in temperatures as a low-pressure system pushes into Northern California. The interior will be 15 to 20 degrees cooler compared to the maximum heating on Friday. There is a small chance of heavy rainfall in North Bay on Sunday.
