The National Weather Service has issued a High Surf Warning and a Coastal Flood Advisory for many counties, including San Francisco, the Coastal North Bay, including Point Reyes National Seashore, the San Francisco Peninsula Coast, Northern Monterey Bay, Southern Monterey Bay, and the Big Sur Coast.
The caution warns of potentially huge breaking waves ranging from 28 to 33 feet, with the potential for 40 feet at favored areas.
The High Surf Warning is in force from 3 a.m. Thursday to 3 a.m. Friday PST, meaning that high surf will lessen on Friday before another major swell arrives on Saturday.
This warning’s consequences include modest coastal flooding, with flooding likely in lots, parks, and roads, as well as the possibility of localized road closures.
Breaking waves represent a severe danger, capable of washing people over jetties and piers and into perilous seas.
Life-threatening swimming conditions, as well as considerable beach erosion, are predicted.
Tidal levels are currently running around 1 foot higher than predicted, with the high tide expected to peak at 10:46 AM PST Wednesday, ranging from 7.0 to 7.5 feet above MLLW.
This is anticipated to cause modest coastal flooding in low-lying, flood-prone locations in San Francisco Bay.
Residents in impacted areas are encouraged to use caution and allow extra time for travel because certain roads may be closed.
It is critical not to drive around obstacles or into unknown depths of water.
Individuals are also advised to avoid jetties, piers, and other waterside facilities due to potentially life-threatening surf conditions. Those who live in flood-prone areas should take the required precautions to secure their property.
Coastal flooding along the Pacific Ocean is predicted to begin on Wednesday due to a combination of strong southerly winds and rising surf.