blob:By 10 a.m. Sunday, the temperatures hovered around 80 degrees in San Francisco - about 20 degrees above average for a morning in June. Temperatures kept rising in the Bay Area throughout the day. Record highs of 97 were recorded at airports in both San Francisco and Oakland, while Livermore and San Jose also smashed previous milestones. San Jose hit 103 and Livermore 106. "This whole heat event will be the most substantial heat wave we've had this season," said Charles Bell, a meteorologist for the National Weather Service in Monterey. San Francisco hit 88 degrees Sunday, beating the record set in 1993 for June 18, but Bell said the existing record for the day "is not really that high." Saturday's historic high is 95, while Monday's is set at 92. Breaking any records Monday is "very unlikely," Bell said. "Sunday's heat is probably the peak for the entire event," although the heat wave is expected to last well into the week. By Friday, Bell said the high pressure system lingering overhead will move toward the east, allowing cooler weather to work its way back in. "It's not an unprecedented heat wave," Bell said. "We typically will have several periods every year where we'll get very warm to hot weather. ... Usually we'll get this two to three times a year." But just because it's happened before doesn't mean the weather-weary Bay Area residents are prepared. "Be careful about leaving children and pets in cars, and please be aware that the vehicle will heat up to a dangerous level very fast," he said. "Take plenty of breaks, and drink water." There were cases and cases of cold water Sunday afternoon at the Gene Friend Rec Center in San Francisco's South of Market neighborhood, where about 100 congregants from the City Life Church on Sixth Street gathered to eat chicken and ribs after the 11:30 service.