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Dense Fog Advisory

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
126 PM PST Thu Nov 27 2025

CAZ015>019-281900-
/O.CAN.KSTO.FG.Y.0012.251129T0600Z-251129T1900Z/
/O.NEW.KSTO.FG.Y.0013.251128T0600Z-251128T1900Z/
Northern Sacramento Valley-Central Sacramento Valley-Southern
Sacramento Valley-Carquinez Strait and Delta-Northern San Joaquin
Valley-
Including the cities of Stockton, Sacramento, Red Bluff,
Oroville, Modesto, Redding, Chico, Fairfield/Suisun, and
Marysville/Yuba City
126 PM PST Thu Nov 27 2025

...DENSE FOG ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 11 AM PST
FRIDAY...

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

* WHERE...Carquinez Strait and Delta, Central Sacramento Valley, and
  Northern San Joaquin Valley.

* WHEN...From 10 PM tonight to 11 AM PST Friday.

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

* ADDITIONAL DETAILS...Find the latest road conditions at
  quickmap.dot.ca.gov

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information, visit us at www.weather.gov/sto/

NR

Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
256 PM PST Thu Nov 27 2025

PZZ450-470-280700-
/O.CON.KEKA.SC.Y.0130.251127T2300Z-251128T1700Z/
Pt St George to Cape Mendocino out 10 nm-
Pt St George to Cape Mendocino 10 to 60 nm-
256 PM PST Thu Nov 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST FRIDAY...

* WHAT...Steep seas 9 to 11 feet expected.

* WHERE...Pt St George to Cape Mendocino out 10 nm and Pt St
  George to Cape Mendocino 10 to 60 nm.

* WHEN...Until 9 AM PST Friday.

* 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
256 PM PST Thu Nov 27 2025

PZZ455-475-280700-
/O.CON.KEKA.SC.Y.0130.251128T0700Z-251128T1700Z/
Cape Mendocino to Pt Arena out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
256 PM PST Thu Nov 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 9 AM PST FRIDAY...

* WHAT...Steep seas 8 to 10 feet expected.

* WHERE...Cape Mendocino to Pt Arena out 10 nm and Cape
  Mendocino to Pt Arena 10 to 60 nm.

* WHEN...From 11 PM this evening to 9 AM PST Friday.

* 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
239 PM PST Thu Nov 27 2025

PZZ570-280645-
/O.CON.KMTR.SC.Y.0207.251127T2300Z-251128T1700Z/
Waters from Point Arena to Point Reyes 10-60 NM-
239 PM PST Thu Nov 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST FRIDAY...

* WHAT...North winds 10 to 15 kt expected.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 9 AM PST Friday.

* 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 Medford OR
124 PM PST Thu Nov 27 2025

PZZ350-281200-
/O.CON.KMFR.SE.W.0046.000000T0000Z-251128T1200Z/
/O.CON.KMFR.SC.Y.0104.000000T0000Z-251129T0000Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
124 PM PST Thu Nov 27 2025

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST FRIDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
  steep to very steep seas 13 to 18 ft at 13 seconds. Winds ease
  tonight, but seas remain steep into Friday afternoon, 9 to 11
  ft at 13 seconds.

* WHERE...All areas. Very steep and hazardous seas expected
  beyond 5 nm from shore south of Reedsport and near shore north
  of Reedsport.

* WHEN...For the Hazardous Seas Warning, until 4 AM PST Friday.
  For the Small Craft Advisory, until 4 PM PST Friday.

* IMPACTS...Very steep and hazardous seas could capsize or
  damage vessels. Bar crossings will become especially
  treacherous.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
124 PM PST Thu Nov 27 2025

PZZ356-376-281200-
/O.CON.KMFR.SC.Y.0104.000000T0000Z-251129T0000Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
124 PM PST Thu Nov 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST FRIDAY...

* WHAT...Seas 11 to 14 ft at 13 seconds through this afternoon,
  lowering some to 9 to 11 ft at 13 seconds through Friday
  afternoon.

* WHERE...All areas.

* WHEN...Until 4 PM PST Friday.

* 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
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
124 PM PST Thu Nov 27 2025

PZZ370-281200-
/O.CON.KMFR.SE.W.0046.000000T0000Z-251128T1200Z/
/O.CON.KMFR.SC.Y.0104.251128T1200Z-251129T0000Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
124 PM PST Thu Nov 27 2025

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
  very steep and hazardous seas 13 to 18 ft at 12 seconds. Winds
  ease tonight, but seas remain steep into Friday afternoon, 9 to
  11 ft at 13 seconds.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, until 4 AM PST Friday.
  For the Small Craft Advisory, from 4 AM to 4 PM PST Friday.

* IMPACTS...Very steep and hazardous seas could capsize or
  damage vessels. Bar crossings will become especially
  treacherous.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

Hazardous Seas Warning

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
124 PM PST Thu Nov 27 2025

PZZ350-281200-
/O.CON.KMFR.SE.W.0046.000000T0000Z-251128T1200Z/
/O.CON.KMFR.SC.Y.0104.000000T0000Z-251129T0000Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
124 PM PST Thu Nov 27 2025

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST FRIDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
  steep to very steep seas 13 to 18 ft at 13 seconds. Winds ease
  tonight, but seas remain steep into Friday afternoon, 9 to 11
  ft at 13 seconds.

* WHERE...All areas. Very steep and hazardous seas expected
  beyond 5 nm from shore south of Reedsport and near shore north
  of Reedsport.

* WHEN...For the Hazardous Seas Warning, until 4 AM PST Friday.
  For the Small Craft Advisory, until 4 PM PST Friday.

* IMPACTS...Very steep and hazardous seas could capsize or
  damage vessels. Bar crossings will become especially
  treacherous.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
124 PM PST Thu Nov 27 2025

PZZ370-281200-
/O.CON.KMFR.SE.W.0046.000000T0000Z-251128T1200Z/
/O.CON.KMFR.SC.Y.0104.251128T1200Z-251129T0000Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
124 PM PST Thu Nov 27 2025

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
  very steep and hazardous seas 13 to 18 ft at 12 seconds. Winds
  ease tonight, but seas remain steep into Friday afternoon, 9 to
  11 ft at 13 seconds.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, until 4 AM PST Friday.
  For the Small Craft Advisory, from 4 AM to 4 PM PST Friday.

* IMPACTS...Very steep and hazardous seas could capsize or
  damage vessels. Bar crossings will become especially
  treacherous.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$
U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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