Bay Area/ San Francisco

Bay Area On Alert: High Fire Danger and Gale-Force Winds Lash San Francisco Amid Heatwave

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Published on May 19, 2025
Bay Area On Alert: High Fire Danger and Gale-Force Winds Lash San Francisco Amid HeatwaveSource: Yourusernamewillbepublic2, CC0, via Wikimedia Commons

San Franciscans should brace themselves for a hot and blustery week, according to reports from the National Weather Service. Gusty winds, low humidity, and high temperatures have increased fire danger across the Bay Area, with NWS San Francisco cautioning residents to use "extreme caution with any potential ignition sources." Not only does the land feel the sting of the weather, but the seas are also unruly. The warning also extends to maritime activities, with gale-force winds and rough seas up to 15 feet expected through Tuesday, advising vessels to remain in port or seek safe harbor.

As we continue to navigate through unpredictable coastal conditions, folks working outdoors are at an elevated risk due to the minor to moderate HeatRisk this week. The highest temperatures are expected on Wednesday and Thursday, peaking in the upper 80s to mid-90s. The National Weather Service advises to "be sure to hydrate with plenty of water and electrolytes" and to "wear light clothing." It's essential to stay vigilant against fires and actively prevent heat-related stress by keeping yourself and your residence ventilated, a prudent reminder as the mercury rises.

Amidst the heightened caution for fire safety and health due to the heat, ocean-goers and mariners are advised to acknowledge the continued warning for hazardous marine conditions. According to the Area Forecast Discussion, breezes could reach gales with strong northwesterly winds lasting until Saturday, maintaining a precarious situation for anyone on the water. "Widespread strong northerly breezes with gale force gusts are expected over the inner and outer waters through Tuesday," the report states, highlighting the need for extra caution.