Tropical weather back in SF Bay Area
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San Francisco could record back-to-back 80-degree days for the first time this year. Triple-digit temperatures are forecast for some inland Bay Area cities.
San Francisco weather forecast shows a shift to drier, warmer conditions with potential wildfire smoke haze but no ground-level smoke expected.
Temperatures across the Bay Area will stay mild near the coast, with San Francisco in the low 70s and Oakland and San Jose reaching the mid-70s and low 80s, according to a National Weather Service forecast. Inland cities such as Livermore and Brentwood will heat up, with highs in the upper 80s to low 90s.
The Bay Area is heading into the final weekend of summer with a quiet pattern on tap. After several days of tropical leftovers, conditions will settle into something more typical for September over the weekend, with morning fog, afternoon sunshine and modestly cool temperatures in the 70s and 80s.
San Francisco to experience above-normal temperatures with a moderate heat risk and potential fire weather threat.
Warmer than normal temperatures are descending on the Bay Area early this week but will give way to the potential for monsoonal thunderstorms and lightning strikes by Friday, the National Weather Service announced Monday.
That combination is a bad mix, because it creates instability and electrical volatility in the atmosphere. Thus, lightning that arrives without much rain — bringing an additional threat of new wildfire starts — is a possibility as high temperatures dip an average of 10-15 degrees around the region.
Above-normal temperatures, low relative humidity and the impending risk of thunderstorms will combine to create potentially disastrous wildfire conditions in the Bay
Dense fog advisory for San Francisco Peninsula Coast and Northern Monterey Bay until Tuesday morning
San Francisco Peninsula Coast and Northern Monterey Bay were placed under a dense fog advisory by the National Weather Service on Tuesday at 2:54 a.m. The advisory is in effect until 10 a.m.
Though hotter temperatures are likely to persist through Wednesday — the three-day threshold that would typically constitute a heat wave — Gass was hesitant to describe the event as such, noting forecasters tend to reserve the label for heat that brings temperatures up to 90 in San Francisco.