“It’s still warm and dry in the higher elevations across the region, so we’re not expecting any lightning,” Gass said, noting that lightning is the leading natural cause of wildfires. “We don’t have any strong offshore winds or anything like that.”
Residents should continue taking precautions during the heat advisory by staying hydrated, limiting strenuous outdoor activity during the hottest part of the day and seeking air-conditioned spaces or shade when possible, Gass said.
While tropical moisture occasionally reaches the Bay Area from storms in the Eastern Pacific, Gass said the muggy conditions should be short-lived, with more typical summer weather expected to return by Wednesday afternoon.