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Coastal Flood Advisory


Coastal Hazard Message
National Weather Service Eureka CA
937 AM PST Sat Dec 6 2025

CAZ103-062100-
/O.CON.KEKA.CF.Y.0011.251206T1800Z-251206T2100Z/
Northern Humboldt Coast-
937 AM PST Sat Dec 6 2025

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST 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 8.9 and 9.2 feet MLLW
  at the North Spit tide gauge is predicted.

* WHERE...Northern Humboldt Coast County.

* WHEN...From 10 AM to 1 PM PST Saturday. High tide is at 11:44
  AM 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
445 AM PST Sat Dec 6 2025

CAZ006-506-508-529-530-062300-
/O.CON.KMTR.CF.Y.0016.000000T0000Z-251207T2300Z/
San Francisco-North Bay Interior Valleys-
San Francisco Bay Shoreline-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
445 AM PST Sat Dec 6 2025

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
SUNDAY...

* WHAT...Up to 1.7 ft of inundation above ground level is
  possible in low lying areas near shorelines and tidal
  waterways.

* WHERE...Bayshore locations along San Francisco and Monterey
  Bay.

* WHEN...Until 3 PM PST Sunday.

* IMPACTS...Flooding of lots, parks, and roads with only isolated
  road closures expected.

* ADDITIONAL DETAILS...The San Francisco tidal gauge high tide is
  expected to be 1.7 ft above normal (7.51 ft MLLW) at 11:25 AM
  Saturday and 0.9 ft above normal (6.75 ft MLLW) at 12:17 PM
  Sunday. High tide timing varies up to 90 minutes earlier or
  later along the Pacific Coast and throughout 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.

&&

$$


Dense Fog Advisory


URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
844 AM PST Sat Dec 6 2025

CAZ103-061800-
/O.EXT.KEKA.FG.Y.0003.000000T0000Z-251206T1800Z/
Northern Humboldt Coast-
Including McKinleyville, Fernbridge, Ferndale, Fortuna, Fieldbrook,
Samoa, Trinidad, Eureka, and Arcata
844 AM PST Sat Dec 6 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility less than one mile in dense fog.

* WHERE...Northern Humboldt Coast.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
843 AM PST Sat Dec 6 2025

ORZ026-062000-
/O.NEW.KMFR.FG.Y.0016.251206T1643Z-251206T2000Z/
Jackson County-
Including the following locations...Medford and Ashland
843 AM PST Sat Dec 6 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Jackson County, including I-5 from Gold Hill south to
  Ashland.

* WHEN...Until noon PST today.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

MAS


Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
207 AM PST Sat Dec 6 2025

PZZ350-370-062315-
/O.EXT.KMFR.SC.Y.0107.000000T0000Z-251207T0300Z/
/O.NEW.KMFR.SC.Y.0108.251207T1800Z-251209T0000Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
207 AM PST Sat Dec 6 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 4 PM PST
MONDAY...

* WHAT...For the first Small Craft Advisory, seas 8 to 13 ft at
  13 seconds. For the second Small Craft Advisory, south winds
  15 to 25 kt with gusts up to 30 kt and seas 6 to 11 ft at 11
  seconds expected.

* WHERE...All areas.

* WHEN...For the Small Craft Advisory, until 7 PM PST this
  evening. For the Small Craft Advisory, from 10 AM Sunday to 4
  PM PST Monday.

* IMPACTS...Gusty winds and/or steep seas could capsize or
  damage smaller vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
207 AM PST Sat Dec 6 2025

PZZ356-062315-
/O.EXT.KMFR.SC.Y.0106.000000T0000Z-251207T0300Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
207 AM PST Sat Dec 6 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS
EVENING...

* WHAT...Southwest winds 10 to 20 kts and steep seas 7 to 11
  feet at 10 seconds.

* WHERE...Beyond 5 nm from shore, except closer to the coast
  towards Port Orford.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Gusty winds and or steep seas could capsize or
  damage smaller vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
207 AM PST Sat Dec 6 2025

PZZ376-062315-
/O.EXT.KMFR.SC.Y.0105.000000T0000Z-251207T0300Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
207 AM PST Sat Dec 6 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS
EVENING...

* WHAT...Southwest winds of 10 to 20 kt, and steep west seas 8
  to 10 feet at 6 seconds.

* WHERE...Beyond 30 nm from shore west of Point St. George and
  just beyond 10 nm from shore west of Pistol River.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Gusty winds and/or steep seas could capsize or
  damage smaller vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

Visit us at https://www.weather.gov/Medford

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Page last modified: June 2, 2009
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