Bay Area/ San Francisco

Heat Advisory in Effect for Bay Area as Temperatures Soar, Fire Weather Concerns Escalate

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Published on May 29, 2025
Heat Advisory in Effect for Bay Area as Temperatures Soar, Fire Weather Concerns EscalateSource: Sharon Hahn Darlin, CC BY 2.0, via Wikimedia Commons

The Bay Area is gearing up for a significant temperature increase, with the National Weather Service San Francisco forecasting a notable warming trend peaking on Friday. According to the official reports, interior portions of the North Bay, East Bay, South Bay, Santa Cruz Mountains, and the Central Coast will be particularly affected. In anticipation of the soaring mercury, the National Weather Service has issued a Heat Advisory effective from 10 AM through 8 PM Friday.

Residents are warned of moderate to isolated major Heat Risk due to projected high temperatures ranging from the mid-90s to near 105 degrees. The NWS advisory emphasizes that "these levels of heat will impact most individuals, especially those sensitive to heat. " Without proper cooling and hydration, they may find themselves prone to heat-related illnesses. Heat Safety Tips for those planning to spend time outdoors include drinking plenty of fluids, staying in air-conditioned rooms, and avoiding prolonged sun exposure.

Bearing the brunt of this heatwave, inland communities face increased fire weather concerns. The NWS San Francisco bulletin, issued early Thursday, warns of elevated fire dangers from Thursday through Saturday. "Elevated fire weather concerns will develop and persist into the weekend," the bulletin states. Residents in these areas should be extra cautious with open flames, secure tow chains, and avoid activities that could spark a wildfire.

Alongside the heat warning, the National Weather Service has also noted that record temperatures might be tied or broken, with several climate stations across the region expected to flirt with or exceed century-old records. While offering an overnight reprieve with lows in the 50s and 60s, the high heat during the day might cause car interiors to reach lethal temperatures in minutes. "Do not leave young children and pets in unattended vehicles," the National Weather Service cautions.