The National Weather Service is forecasting high temperatures for the greater San Francisco Bay Area later this week, with “Moderate Heat Risk” conditions in the inland areas Thursday through Saturday.
Moderate Heat Risk is a designation given to weather conditions that can lead to health problems for people who are sensitive to heat or people who are exposed to high temperatures for extended periods of time.
The risk is expected to extend through the North Bay, East Bay, South Bay, and Monterey and San Benito counties, with the potential to spread across the San Francisco Peninsula, including the city of San Francisco.
Patchy Major Heat Risk conditions are expected for the far interior of Monterey and San Benito counties.
“We’re definitely going to see some of the warmest weather of the year so far,” Weather Service meteorologist Dylan Flynn said. “It has been a cool summer. But the temperatures are going to climb at least 5 to 10 degrees above normal.”
“When we see this level of heat we start to get concerned about health impacts, especially to vulnerable populations.”
Dylan Flynn, National Weather Service
High temperatures are expected to vary depending on proximity to the coast, according to Flynn. Daytime highs will reach the low 100s in inland areas and be mostly in the mid to upper 70s along the coast and on the bay shore.
The Weather Service also expects minor coastal flooding due to slightly elevated high tides in coastal locations directly next to Richardson Bay, including Sausalito, Tam Valley, and Manzanita.
“We’re not expecting to do a coastal flood advisory,” Flynn said. “We’ve seen much higher than that, just even on sunny days. So this is higher than average but not a major concern for flooding even in our most susceptible areas.”
Flynn warned of the health concerns that accompany elevated temperatures.
“When we see this level of heat we start to get concerned about health impacts, especially to vulnerable populations,” he said. “That’s elderly people, that’s young children, that’s anybody who lives or works outside. Just take care if you fall into one of those groups: hydrate, stay in the shade, take breaks.”
Temperatures will cool slightly into the weekend but remain warm into the next week.
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