Headline:
High Surf Advisory issued December 20 at 9:39PM PST until December 22 at 4:00PM PST by NWS San Francisco CA
Event:
High Surf Advisory
Urgency:
Expected
Effective:
December 20, 2024 - 9:39pm
Expires:
December 21, 2024 - 6:00am
Description:
* WHAT...Expect large westerly swell with breaking waves 15 to
18 feet, including breakers near 20 feet possible along
favored west facing beaches.
* WHERE...San Francisco, Coastal North Bay Including Point Reyes
National Seashore, San Francisco Peninsula Coast, Northern
Monterey Bay and Southern Monterey Bay and Big Sur Coast.
* WHEN...From 6 AM Saturday to 4 PM PST Sunday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion. Large waves can sweep across the
beach without warning, pulling people into the sea from rocks,
jetties and beaches. Sudden immersion in cold water can result
in cold water shock even for the most experienced swimmers.
Cold water shock can result in dramatic changes in breathing,
heart rate and blood pressure, greatly increasing the risk of
drowning in rough open waters.
Instruction:
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Area Description:
San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Forcast Office:
NWS San Francisco CA