Warning Vector

Coastal Flood Advisory

NWS San Francisco CA ยท US

Updated

Details

Coastal Flood Advisory Remains In Effect Until 4 PM PST Friday... ...Beach Hazards Statement Remains In Effect Through Friday Afternoon... ...High Surf Warning Remains In Effect From 6 PM Friday To 4 AM PST Sunday... ...Coastal Flood Advisory In Effect From Midnight Friday Night To 6 PM PST Saturday

Event
Coastal Flood Advisory
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Expected
Severity
Minor
Certainty
Likely
Response
Monitor

Description

What

For the first Coastal Flood Advisory, Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, An increased risk for sneaker waves and strong rip currents with breaking waves of 15 to 20 ft expected. For the High Surf Warning, Dangerously large breaking waves of 25 to 35 ft, with occasional sets of 40 to 50 ft at favored breakpoints. For the second Coastal Flood Advisory, large breaking waves will run up beaches and crash over seawalls, inundating adjacent, low-lying infrastructure.

Where

San Francisco and Southern Monterey Bay and Big Sur Coast.

When

For the first Coastal Flood Advisory, until 4 PM PST Friday. For the Beach Hazards Statement, through Friday afternoon. For the High Surf Warning, from 6 PM Friday to 4 AM PST Sunday. For the second Coastal Flood Advisory, from midnight Friday night to 6 PM PST Saturday.

Impacts

High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. Dangerously large breaking waves can overpower swimmers, pulling people into the sea from beaches, jetties, and rocks resulting in significant physical injury and increasing the risk of drowning. Waves can sweep across the shoreline without warning, pulling people into the sea from beaches, jetties, and rocks.

Additional details

At the San Francisco tide gauge, high tide is expected to be: 1.3 ft above normal (7.1 ft MLLW) at 12:10 PM Thursday 11/12, 1.5 ft above normal (7.3 ft MLLW) at 12:49 PM Friday 11/13. These predictions include up to 1.8 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively. The Coastal Flood Advisory on Saturday is specifically for the Pacific Coast, where large breaking waves will spill over sea walls and run up beaches onto adjacent infrastructure.

Instructions

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.

Affected areas

  • San Francisco County, CA
  • Southern Monterey Bay and Big Sur Coast

Public contact

Issuer
NWS San Francisco CA

Message record

Received
Issue to receipt
~2m17s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M778AZBKY3QJD6NDAT8D6FPE
Identifier
urn:oid:2.49.0.1.840.0.f24acdc8bab05264fb6a2dc1481bf8cf8e0da56e.001.3
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS San Francisco CA
AWIPS ID
CAPMTR
NWWS sequence
nwws_processor.1530
WMO heading
XOUS56
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
56

References

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Event codes

NameValue
SAMENWS
NationalWeatherServiceCFY

Parameters

NameValue
AWIPSidentifierCFWMTR
WMOidentifierWHUS46 KMTR 120648
NWSheadlineCOASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST FRIDAY... ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... ...HIGH SURF WARNING REMAINS IN EFFECT FROM 6 PM FRIDAY TO 4 AM PST SUNDAY... ...COASTAL FLOOD ADVISORY IN EFFECT FROM MIDNIGHT FRIDAY NIGHT TO 6 PM PST SATURDAY
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.CON.KMTR.CF.Y.0015.000000T0000Z-261114T0000Z/
eventEndingTime2026-11-13T16:00:00-08:00
BLOCKCHANNELCMAS
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Locations

Location data

  • San Francisco County, CA
  • Southern Monterey Bay and Big Sur Coast
NameValue
SAME006075
SAME006053
UGCCAZ006
UGCCAZ530