Coastal Flood Warning
Coastal Hazard Message
National Weather Service San Diego CA
109 AM PDT Wed Oct 28 2026
CAZ043-552-282130-
/O.CON.KSGX.CF.W.0002.000000T0000Z-261029T2000Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
109 AM PDT Wed Oct 28 2026
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 1 PM PDT
THURSDAY...
* WHAT...Significant coastal flooding expected.
* WHERE...San Diego County coastal areas and Orange County
Coastal Areas.
* WHEN...Until 1 PM PDT Thursday during high tides in the late
mornings.
* IMPACTS...Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
will be inundated. Some shoreline erosion will occur in the
late mornings.
* ADDITIONAL DETAILS...Coastal residents and managers of
infrastructure in the warned area should prepare for rising
water and take appropriate action to protect life and
property. High tides each day will occur in the late morning.
Observed high tides are 1.4 to 1.6 feet above astronomical
tide predictions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.
&&
$$
Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1213 PM PDT Tue Oct 27 2026
CAZ110-111-114-281600-
/O.NEW.KEKA.FZ.W.0010.261028T0800Z-261028T1600Z/
Northwestern Interior Mendocino-Northeastern Interior Mendocino-
Northern Lake-
Including Gravelly Valley Airport, Covelo, Potter Valley, Willits,
and Laytonville
1213 PM PDT Tue Oct 27 2026
...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT WEDNESDAY...
* WHAT...Sub-freezing temperatures as low as 26 expected.
* WHERE...Northern Mendocino Interior, and Northern Lake.
* WHEN...From 1 AM to 9 AM PDT Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
To prevent water pipes from freezing; wrap or drain or allow them to
drip slowly.
&&
$$
Coastal Flood Advisory
Coastal Hazard Message
National Weather Service Eureka CA
226 AM PDT Wed Oct 28 2026
CAZ103-281730-
/O.CON.KEKA.CF.Y.0022.261028T1900Z-261028T2200Z/
Northern Coastal Humboldt-
226 AM PDT Wed Oct 28 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 PM PDT THIS AFTERNOON...
* WHAT...High astronomical tides will cause minor flooding in low
lying areas around Humboldt Bay. Up to one half foot of
saltwater inundation above ground level is possible near
shorelines and tidal waterways. Between 9.0 and 9.3 feet MLLW at
the North Spit tide gauge is predicted.
* WHERE...Northern Coastal Humboldt County.
* WHEN...From noon to 3 PM PDT Wednesday. High tide is at 1:13 PM
at the Humboldt Bay North Spit tide gauge. Saltwater inundation
will be possible 1 to 2 hours before and after high tide.
* IMPACTS...Flooding of low lying areas around Humboldt Bay
including parks and roads with only isolated closures
expected. Flooding will likely impact Jackson Ranch Road in
the Arcata Bottoms and several roads in King Salmon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.
Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.
&&
$$
Coastal Hazard Message
National Weather Service San Francisco CA
1220 AM PDT Wed Oct 28 2026
CAZ006-506-508-529-530-282200-
/O.EXT.KMTR.CF.Y.0014.000000T0000Z-261101T0100Z/
San Francisco-North Bay Interior Valleys-
San Francisco Bay Shoreline-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
1220 AM PDT Wed Oct 28 2026
...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 6 PM PDT SATURDAY...
* WHAT...Up to 1.9 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal waterways.
* WHERE...Bay Shoreline locations of San Pablo Bay, San
Francisco Bay, and Monterey Bay.
* WHEN...Until 6 PM PDT Saturday.
* IMPACTS...High tides will result in flooding of low-lying
infrastructure, isolated road closures, and coastal erosion.
Rising tides will bring water and waves farther up the beach
than normal, restricting escape from beaches and coastal
areas. More substantial impacts are expected along bayshore
Marin County where increased flooding is anticipated across
low lying areas.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM
Wednesday 10/28, 1.9 ft above normal (7.7 ft MLLW) at 01:43 PM
Thursday 10/29, 1.6 ft above normal (7.4 ft MLLW) at 02:39 PM
Friday 10/30, and 1.1 feet above normal (6.9 ft MLLW) at 03:44
PM on Saturday 10/31. These predictions include up to 1.2 ft of
surge that will enhance the astronomical tide and flooding
threat. High tide varies up to 90 minutes earlier or later along
the Pacific Coast and through the San Francisco Bay,
respectively.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
$$
Coastal Hazard Message
National Weather Service San Francisco CA
1220 AM PDT Wed Oct 28 2026
CAZ505-509-282200-
/O.CON.KMTR.CF.Y.0014.000000T0000Z-261031T0000Z/
Coastal North Bay Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
1220 AM PDT Wed Oct 28 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT
FRIDAY...
* WHAT...Up to 1.9 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal waterways.
* WHERE...Pacific Coast.
* WHEN...Until 5 PM PDT Friday.
* 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.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high
tide is expected to be 1.9 ft above normal (7.7 ft MLLW) at
12:56 PM Wednesday 10/28, 1.7 ft above normal (7.5 ft MLLW) at
01:43 PM Thursday 10/29, and 1.6 ft above normal (7.4 ft MLLW)
at 02:39 PM Friday 10/30. These predictions include up to 1.2
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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
654 AM PDT Tue Oct 27 2026
CAZ087-292000-
/O.CON.KLOX.CF.Y.0009.000000T0000Z-261029T2000Z/
Catalina and Santa Barbara Islands-
654 AM PDT Tue Oct 27 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT
THURSDAY...
* WHAT...Minor to moderate coastal flooding expected due to very
high tides.
* WHERE...Catalina and Santa Barbara Islands.
* WHEN...Until 1 PM PDT Thursday.
* IMPACTS...Minor to moderate flooding of sea water is likely
over vulnerable low-lying coastal areas, especially around the
time of high tide, including over beach parking lots, bike
paths, and harbor walkways. Moderate to significant beach
erosion is likely. Isolated damage of structures due to sea
water inundation is possible to the most vulnerable areas.
* ADDITIONAL DETAILS...High tides will likely reach 7.5-8.0 feet
(MLLW) each late morning, which is 1.0 to 1.5 feet above
astronomical projections. The highest tides will be through
Wednesday. There is a small chance for isolated Coastal Flood
Warnings Wednesday through Thursday if larger surf develops.
The Coastal Flood Advisory may also need to be extended beyond
Thursday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take the necessary actions to protect flood-prone property. Do
NOT drive around barricades or through water of unknown depth.
&&
$$
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
654 AM PDT Tue Oct 27 2026
CAZ340-346-349-350-354-362-366-292000-
/O.CON.KLOX.CF.Y.0009.000000T0000Z-261029T2000Z/
San Luis Obispo County Beaches-
Santa Barbara County Central Coast Beaches-
Santa Barbara County Southwestern Coast-
Santa Barbara County Southeastern Coast-Ventura County Beaches-
Malibu Coast-Los Angeles County Beaches-
654 AM PDT Tue Oct 27 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT
THURSDAY...
* WHAT...Minor to moderate coastal flooding expected due to very
high tides.
* WHERE...San Luis Obispo County Beaches, Santa Barbara County
Central Coast Beaches, Santa Barbara County Southwestern
Coast, Santa Barbara County Southeastern Coast, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.
* WHEN...Until 1 PM PDT Thursday.
* IMPACTS...Minor to moderate flooding of sea water is likely
over vulnerable low-lying coastal areas, especially around the
time of high tide, including over beach parking lots, bike
paths, and harbor walkways. Moderate to significant beach
erosion is likely. Isolated damage of structures due to sea
water inundation is possible to the most vulnerable areas.
* ADDITIONAL DETAILS...High tides will likely reach 7.5-8.0 feet
(MLLW) each late morning, which is 1.0 to 1.5 feet above
astronomical projections. The highest tides will be through
Wednesday. There is a small chance for isolated Coastal Flood
Warnings Wednesday through Thursday if larger surf develops.
The Coastal Flood Advisory may also need to be extended beyond
Thursday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take the necessary actions to protect flood-prone property. Do
NOT drive around barricades or through water of unknown depth.
&&
$$
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ570-281800-
/O.EXT.KMTR.SC.Y.0130.000000T0000Z-261030T0400Z/
Waters from Point Arena to Point Reyes 10-60 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT THURSDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
8 to 10 ft.
* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.
* WHEN...Until 9 PM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ576-281800-
/O.CON.KMTR.SC.Y.0130.000000T0000Z-261029T0400Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
* WHAT...North winds 10 to 20 kt.
* WHERE...Waters from Point Pinos to Point Piedras Blancas 10-
60 NM.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ540-281800-
/O.CON.KMTR.SC.Y.0131.261028T2200Z-261029T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
* WHAT...Northwest winds 10 to 20 kt expected.
* WHERE...Coastal Waters from Point Arena to Point Reyes
California out to 10 NM.
* WHEN...From 3 PM this afternoon to 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ560-281800-
/O.CON.KMTR.SC.Y.0131.261028T2200Z-261029T0400Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
* WHAT...Northwest winds 15 to 20 kt expected.
* WHERE...Coastal Waters from Pigeon Point to Point Pinos
California out to 10 NM.
* WHEN...From 3 PM this afternoon to 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ571-281800-
/O.EXT.KMTR.SC.Y.0130.000000T0000Z-261030T0400Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT THURSDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
8 to 10 ft.
* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.
* WHEN...Until 9 PM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ575-281800-
/O.EXT.KMTR.SC.Y.0130.000000T0000Z-261029T2200Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT THURSDAY...
* WHAT...North winds 10 to 20 kt and seas 8 to 10 ft.
* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.
* WHEN...Until 3 PM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
249 AM PDT Wed Oct 28 2026
PZZ565-281800-
/O.CON.KMTR.SC.Y.0131.261028T2200Z-261029T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 NM-
249 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
* WHAT...Northwest winds 5 to 15 kt expected.
* WHERE...Coastal Waters from Point Pinos to Point Piedras
Blancas California out to 10 NM.
* WHEN...From 3 PM this afternoon to 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
224 AM PDT Wed Oct 28 2026
PZZ475-281730-
/O.CON.KEKA.SC.Y.0098.000000T0000Z-261029T1000Z/
Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm-
224 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
THURSDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
7 to 9 feet.
* WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to
60 nm.
* WHEN...Until 3 AM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
224 AM PDT Wed Oct 28 2026
PZZ455-281730-
/O.CON.KEKA.SC.Y.0098.000000T0000Z-261029T1000Z/
Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm-
224 AM PDT Wed Oct 28 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
THURSDAY...
* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas
6 to 9 feet.
* WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out
10 nm.
* WHEN...Until 3 AM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1213 PM PDT Tue Oct 27 2026
CAZ105-106-113-118-281600-
/O.NEW.KEKA.FR.Y.0028.261028T0800Z-261028T1600Z/
Northeastern Interior Humboldt-Southeastern Interior Humboldt-
Southeastern Interior Mendocino-Western Lake-
Including Dinsmore, Orleans, Calpella, and Benbow
1213 PM PDT Tue Oct 27 2026
...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PDT WEDNESDAY...
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Humboldt Interior, Southeastern Interior Mendocino, and
Western Lake.
* WHEN...From 1 AM to 9 AM PDT Wednesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
For hazard areas see https://www.weather.gov/wrh/hazards/?wfo=eka
JB
