Alert archive / California / Hazardous Seas Warnings in 2011

Hazardous Seas Warning 2, NWS Eureka, CA

February 25, 2011

NWS Eureka, CA issued this hazardous seas warning at Feb 25, 2011, 2:34 AM PST. It took effect at Feb 25, 2011, 3:00 PM PST. It was in force for . No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 25, 2011, 2:34 AM PST (10:34 UTC)
In effect from
Feb 25, 2011, 3:00 PM PST
Expired
Feb 25, 2011, 2:40 PM PST
In force
Issued by
NWS Eureka, CA

The text

As transmitted, in the capitals the NWS used until 2016.

364 
WHUS76 KEKA 251034
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
234 AM PST FRI FEB 25 2011

PZZ470-475-252330-
/O.CON.KEKA.SC.Y.0018.000000T0000Z-110227T0900Z/
/O.NEW.KEKA.SE.W.0002.110225T2300Z-110226T1100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
234 AM PST FRI FEB 25 2011

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SUNDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM PST SATURDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HAZARDOUS
SEAS WARNING...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM PST SATURDAY. A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL
1 AM PST SUNDAY. 

* WINDS: NORTHERLY WINDS INCREASING TO 20 TO 30 KT TONIGHT INTO
  SATURDAY NIGHT. GUSTS UP TO 40 KT ARE POSSIBLE ACROSS THE
  WESTERN PORTION. WINDS WILL EASE ON SUNDAY.

* WAVES: COMBINED SEAS BUILDING TO 12 TO 14 FT WITH A DOMINANT
  PERIOD OF 10 SECONDS TONIGHT INTO EARLY SATURDAY MORNING. SEAS
  WILL SLOWLY SUBSIDE ON SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT...OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ450-252330-
/O.CON.KEKA.SC.Y.0018.000000T0000Z-110227T0900Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
234 AM PST FRI FEB 25 2011

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SUNDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SUNDAY. 

* WINDS: NORTHERLY WINDS INCREASING TO 15 TO 25 KT TONIGHT INTO
  SATURDAY NIGHT. WINDS WILL EASE ON SUNDAY.

* WAVES: NW SWELL 8 TO 10 FT AT 10 SECONDS THROUGH
  TONIGHT...GRADUALLY DIMINISHING ON SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ455-252330-
/O.CON.KEKA.SC.Y.0018.110226T0000Z-110227T0900Z/
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
234 AM PST FRI FEB 25 2011

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 1 AM PST SUNDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 1 AM PST SUNDAY. 

* WINDS: NORTHERLY WINDS INCREASING TO 10 TO 20 KT WITH GUSTS TO 25 KT
  TONIGHT INTO SATURDAY NIGHT. WINDS WILL EASE ON SUNDAY.

* WAVES: NW SWELL 8 TO 10 FT AT 10 SECONDS THROUGH
  TONIGHT...GRADUALLY DIMINISHING ON SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


HTTP://WWW.WEATHER.GOV/EUREKA
1 follow-up statement
061 
WHUS76 KEKA 252240
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
240 PM PST FRI FEB 25 2011

PZZ470-261100-
/O.UPG.KEKA.SC.Y.0018.000000T0000Z-110227T0900Z/
/O.NEW.KEKA.GL.W.0005.110225T2240Z-110226T1700Z/
/O.CAN.KEKA.SE.W.0002.110225T2300Z-110226T1100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
240 PM PST FRI FEB 25 2011

...GALE WARNING IN EFFECT UNTIL 9 AM SATURDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 9 AM PST SATURDAY. THE
HAZARDOUS SEAS WARNING HAS BEEN CANCELLED. THE SMALL CRAFT
ADVISORY IS NO LONGER IN EFFECT. 

* WINDS: A TIGHTENING PRESSURE GRADIENT WILL BRING GALE FORCE
  WINDS TO THE WATERS TONIGHT. HIGHEST WINDS WILL BE ACROSS THE
  WESTERN PORTION OF THE ZONE.

* WAVES: STEEP SHORT PERIOD SEAS WILL ACCOMPANY GALE FORCE WINDS.
  COMBINE SEAS MAY REACH AS HIGH AS 15 FEET.

* DURATION: WINDS AND SEAS WILL BEGIN TO SUBSIDE BY SAT NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ475-261100-
/O.UPG.KEKA.SC.Y.0018.000000T0000Z-110227T0900Z/
/O.NEW.KEKA.GL.W.0005.110225T2240Z-110226T2300Z/
/O.CAN.KEKA.SE.W.0002.110225T2300Z-110226T1100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
240 PM PST FRI FEB 25 2011

...GALE WARNING IN EFFECT UNTIL 3 PM SATURDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 3 PM PST SATURDAY. THE
HAZARDOUS SEAS WARNING HAS BEEN CANCELLED. THE SMALL CRAFT
ADVISORY IS NO LONGER IN EFFECT. 

* WINDS: A TIGHTENING PRESSURE GRADIENT WILL BRING GALE FORCE
  WINDS TO THE WATERS TONIGHT. HIGHEST WINDS WILL BE ACROSS THE
  WESTERN PORTION OF THE ZONE.

* WAVES: STEEP SHORT PERIOD SEAS WILL ACCOMPANY GALE FORCE WINDS.
  COMBINE SEAS MAY REACH AS HIGH AS 15 FEET.

* DURATION: WINDS AND SEAS WILL BEGIN TO SUBSIDE BY SAT NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ450-455-261100-
/O.EXT.KEKA.SC.Y.0018.000000T0000Z-110227T0500Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
240 PM PST FRI FEB 25 2011

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM SATURDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 9 PM SATURDAY.

* WINDS: FRESH TO STRONG NORTHERLY WINDS WILL PERSIST INTO SAT
  NIGHT UNDER A TIGHTENING PRESSURE GRADIENT. WINDS WILL LIKELY
  REACH NEAR GALE AROUND CAPE MENDOCINO.

* WAVES: STEEP SHORT PERIOD SEAS WILL ACCOMPANY THE STRONG WINDS
  INTO SAT NIGHT. NW SWELL AROUND 9 FEET WILL BEGIN TO SUBSIDE ON
  SAT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


HTTP://WWW.WEATHER.GOV/EUREKA

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 3:51 AM PSTHard Freeze WarningEKA28 hr
Feb 25, 2:40 PM PSTGale WarningEKA18 hr

Nearby

Hazardous Seas Warnings in California, 2011Every hazardous seas warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.