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Dense Fog Advisory


URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
135 PM PST Wed Nov 26 2025

CAZ015>019-271900-
/O.NEW.KSTO.FG.Y.0011.251127T0800Z-251127T1900Z/
Northern Sacramento Valley-Central Sacramento Valley-Southern
Sacramento Valley-Carquinez Strait and Delta-Northern San Joaquin
Valley-
Including the cities of Oroville, Red Bluff, Redding,
Marysville/Yuba City, Sacramento, Modesto, Chico, Stockton, and
Fairfield/Suisun
135 PM PST Wed Nov 26 2025

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM PST
THURSDAY...

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

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

* WHEN...From midnight tonight to 11 AM PST Thursday.

* 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/

SP


Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
246 PM PST Wed Nov 26 2025

PZZ450-470-270700-
/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-
246 PM PST Wed Nov 26 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO
9 AM PST FRIDAY...

* WHAT...Seas 10 to 12 feet expected.

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

* WHEN...From 3 PM Thursday 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 Eureka CA
246 PM PST Wed Nov 26 2025

PZZ455-475-270700-
/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-
246 PM PST Wed Nov 26 2025

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

* WHAT...Northwest winds 10 to 15 kt and seas 9 to 11 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 Thursday 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
214 PM PST Wed Nov 26 2025

PZZ570-270615-
/O.CON.KMTR.SC.Y.0207.251127T2300Z-251128T1700Z/
Waters from Point Arena to Point Reyes 10-60 NM-
214 PM PST Wed Nov 26 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO
9 AM PST FRIDAY...

* WHAT...Northwest winds 10 to 20 kt expected.

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

* WHEN...From 3 PM Thursday 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 Medford OR
146 PM PST Wed Nov 26 2025

PZZ350-271200-
/O.NEW.KMFR.SE.W.0046.251127T0900Z-251128T1200Z/
/O.NEW.KMFR.SC.Y.0104.251127T0900Z-251128T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
146 PM PST Wed Nov 26 2025

...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 AM THURSDAY TO 4 AM
PST FRIDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 4 AM PST
FRIDAY...

* WHAT...South winds 20 to 25 kt with gusts to 35 kt and steep to
  very steep seas 13 to 18 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...From 1 AM Thursday to 4 AM 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
146 PM PST Wed Nov 26 2025

PZZ356-376-271200-
/O.NEW.KMFR.SC.Y.0104.251127T0900Z-251128T1200Z/
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-
146 PM PST Wed Nov 26 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 4 AM PST
FRIDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and steep
  seas 12 to 17 ft at 13 seconds expected.

* WHERE...All areas.

* WHEN...From 1 AM Thursday to 4 AM 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


Hazardous Seas Warning


URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
146 PM PST Wed Nov 26 2025

PZZ350-271200-
/O.NEW.KMFR.SE.W.0046.251127T0900Z-251128T1200Z/
/O.NEW.KMFR.SC.Y.0104.251127T0900Z-251128T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
146 PM PST Wed Nov 26 2025

...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 AM THURSDAY TO 4 AM
PST FRIDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 4 AM PST
FRIDAY...

* WHAT...South winds 20 to 25 kt with gusts to 35 kt and steep to
  very steep seas 13 to 18 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...From 1 AM Thursday to 4 AM 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
146 PM PST Wed Nov 26 2025

PZZ370-271200-
/O.NEW.KMFR.SE.W.0046.251127T0900Z-251128T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
146 PM PST Wed Nov 26 2025

...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 AM THURSDAY TO 4 AM
PST FRIDAY...

* WHAT...South winds 20 to 25 kt with gusts to 35 kt and steep to
  very steep seas 14 to 19 ft at 13 seconds.

* WHERE...All areas.

* WHEN...From 1 AM Thursday to 4 AM 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.

&&

$$


Frost Advisory


URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1206 PM PST Wed Nov 26 2025

CAZ107-110-112-113-115-270815-
/O.NEW.KEKA.FR.Y.0032.251127T1000Z-251127T1700Z/
Northern Trinity-Northwestern Mendocino Interior-Southwestern
Mendocino Interior-Southeastern Mendocino Interior-Southern Lake-
Including Willits, Calpella, Middletown, Laytonville, Talmage,
Finley, Douglas City, Weaverville, Boonville, Junction City,
Lakeport, and Ukiah
1206 PM PST Wed Nov 26 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST THURSDAY...

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...Southern Mendocino Interior, Northern Trinity, Northwestern
  Mendocino Interior, and Southern Lake.

* WHEN...From 2 AM to 9 AM PST Thursday.

* 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.wrh.noaa.gov/map/?wfo=eka

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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