A light ocean breeze brought a cool wisp of air to the far interior places of the East Bay on Thursday night and signaled the return of the marine layer influence. On Friday morning, it blew even cooler.
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Fair to say the two-day heat up in the region is over. But according to the National Weather Service, it’s also fair to say that the cooldown is simply more of the same and that it is not an indication the hot weather is finished.
It may simply just be more of the same.
“We’ll start to warm up again on Monday,” NWS meteorologist Dial Hoang said Friday morning. “And then by the middle of the week, that’s when we’ll see the warmest temperature — probably 90s in the interior, 80s in Oakland and San Francisco and 70s on the Bay Coast and warmer as you go up the North Bay.”
If that all sounds familiar, it should. Essentially, the region remains in the same pattern it showed in the first week of fall and for much of the summer. Now, the anticipation is for a weather week that is a carbon copy of the previous one — a mild weekend and a heat blast at mid-week.
Temperatures Friday in the far interior spots of the region are expected to peak at about 82 degrees, while the South Bay’s hottest spots are not supposed to get past 78. Santa Cruz also is expected to reach 78, while San Mateo and Oakland are expected to peak at 73, and San Francisco at 70.
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On Saturday, the hottest spots are likely to be in the high 70s. On Sunday, the highest temperatures are expected to peak in the low 70s.
The weekend cooldown comes courtesty of low pressure in the upper atmosphere moving in from the Pacific Northwest, Hoang said. That trough has plowed through a ridge of high pressure but itself is fairly fast-moving. In the middle of the week, another ridge is expected to build as the upper-level trough departs.
“It’s going to be pretty similar to what we’ve been seeing,” Hoang said.
As the trough moves through, there remains a chance that winds could get heavy by Sunday, especially in the higher eleveations, the weather service said. Weather forecasters also anticipate that ocean wave swells may take place, though there are no warnings in place for hazardous beach conditions.
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