27 April 2023
The first heat wave of the year is expected to peak in the Bay Area on Thursday. Rounds of hot and dry air from a powerful high-pressure system are flowing into the region, clearing out the spring’s marine layer. This will especially be the case in the region’s inland valleys, where temperatures are expected to soar to the upper 80s and lower 90s.
These are unusually warm temperatures for April, even for inland cities like Napa, Livermore and Santa Rosa. And depending on the timing of some of the hot air, a few spots will be just shy of temperature records for the day — one city might even surpass its record.
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