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Elev 203 ft, 37.7 °N, 122.08 °W

Castro Valley, CA Severe Weather Alertstar_ratehome

icon60 Â°F Castro Valley Station|Report|Change
Current Station
Personal Weather Station
Location: Castro Valley, CA
Elevation: 203ft
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Active Weather Alerts

Gale Warning
Issued: 10:01 AM Dec. 21, 2025 – National Weather Service
...GALE WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS
EVENING...

* WHAT...South winds 15 to 25 kt with gusts up to 35 kt and
rough waters expected.

* WHERE...San Francisco Bay South of the Bay Bridge.

* WHEN...From 9 AM this morning to 9 PM PST this evening.

* IMPACTS...Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

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