San Francisco, CA Weather Alert Today: Flood Risk, Strong Winds, and Weekend Travel Impacts After Christmas

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California – Rain drums against windows before dawn, turning streets glossy and gutters loud. Headlights reflect off standing water as Weather Alerts stack up across the Bay Area, signaling a rough start for post-Christmas travel plans and a watchful eye toward the weekend.

According to the National Weather Service in San Francisco, Flood Watches and Flash Flood Warnings remain active early this morning across San Francisco, the Peninsula, and parts of the East Bay. Periods of heavy rain continue through today, with localized flooding possible on roadways, in low-lying neighborhoods, and near small streams. Gusty winds accompany the system, occasionally reaching advisory levels and pushing debris into travel lanes.

Travel impacts build quickly during heavier downpours. Expect slower conditions on U.S. 101, I-80, and surface streets where drainage struggles to keep up. Wet pavement, reduced visibility, and brief ponding could complicate morning errands and holiday returns. Drivers are urged to avoid flooded roads and allow extra time.

Rain remains likely into Friday, though intensity gradually tapers later in the day. Highs hover in the mid to upper 50s, while breezy conditions persist near the coast. To be fair, breaks may appear, but showers redevelop quickly as the system exits slowly.

Looking toward the weekend, conditions improve but stay unsettled. Saturday brings cooler air and lingering light rain chances, followed by clearer skies Saturday night. Sunday turns mostly sunny, with crisp mornings in the low 40s and highs near the low to mid-50s.

Into early next week, drier weather settles in, offering a calmer stretch for travelers returning home. Still, meteorologists continue tracking additional Pacific systems that could bring more rain later in the week.

For now, plan carefully, keep rain gear ready, and stay alert for updated Weather Alerts as conditions remain dynamic through Friday.