Alert archive / Oregon / Hazardous Seas Warnings in 2012

Hazardous Seas Warning 21, NWS Medford, OR

March 23, 2012

NWS Medford, OR issued this hazardous seas warning at Mar 23, 2012, 10:57 PM PDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 23, 2012, 10:57 PM PDT (05:57 UTC)
Expired
Mar 24, 2012, 5:00 AM PDT
In force
6 hr
Issued by
NWS Medford, OR

The text

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

550 
WHUS76 KMFR 240557
MWWMFR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
1057 PM PDT FRI MAR 23 2012

PZZ376-241500-
/O.CAN.KMFR.GL.W.0017.000000T0000Z-120324T0600Z/
/O.CAN.KMFR.SE.W.0020.000000T0000Z-120324T0600Z/
/O.NEW.KMFR.SE.W.0021.120324T0600Z-120324T1200Z/
/O.NEW.KMFR.SI.Y.0036.120324T0600Z-120324T1500Z/
WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA FROM 10 TO 60 NM-
1057 PM PDT FRI MAR 23 2012

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 5 AM PDT SATURDAY...
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 8 AM PDT
SATURDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A HAZARDOUS
SEAS WARNING...WHICH IS IN EFFECT UNTIL 5 AM PDT SATURDAY. A
SMALL CRAFT ADVISORY FOR WINDS HAS ALSO BEEN ISSUED. THIS SMALL
CRAFT ADVISORY FOR WINDS IS IN EFFECT UNTIL 8 AM PDT SATURDAY.
THE GALE WARNING HAS BEEN CANCELLED. 

* WINDS: SOUTH TO SOUTHEAST WINDS OF 20 TO 30 KT WILL DECREASE TO
  10 TO 20 KT SATURDAY MORNING.

* SEAS: A CHAOTIC MIX OF WESTERLY SWELL AND SOUTHERLY WIND WAVES
  WILL CAUSE COMBINED SEAS OF 13 TO 15 FT OVERNIGHT. SEAS WILL
  SUBSIDE TO SMALL CRAFT ADVISORY EARLY SATURDAY MORNING.

* AREAS AFFECTED: HIGHEST WINDS AND SEAS TODAY WILL BE BEYOND 20
  NM FROM SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURING. 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.

SMALL CRAFT CONDITIONS FOR WIND MEANS THAT WIND SPEEDS OF 23 TO
33 KNOTS ARE EXPECTED. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

PZZ370-241800-
/O.CAN.KMFR.GL.W.0017.000000T0000Z-120324T0600Z/
/O.CAN.KMFR.SE.W.0020.000000T0000Z-120324T0600Z/
/O.CAN.KMFR.SW.Y.0028.000000T0000Z-120324T1200Z/
/O.NEW.KMFR.SW.Y.0030.120324T0600Z-120324T1800Z/
WATERS FROM FLORENCE TO CAPE BLANCO OR FROM 10 TO 60 NM-
1057 PM PDT FRI MAR 23 2012

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 11 AM
PDT SATURDAY...
...GALE WARNING IS CANCELLED...
...HAZARDOUS SEAS WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS...WHICH IS IN EFFECT UNTIL 11 AM PDT
SATURDAY. THE HAZARDOUS SEAS WARNING HAS BEEN CANCELLED. THE GALE
WARNING HAS BEEN CANCELLED. 

* SEAS: A CHAOTIC MIX OF WESTERLY SWELL AND FRESH SHORTER PERIOD
  SOUTHERLY SWELL WILL CAUSE COMBINED SEAS OF 10 TO 12 FT
  OVERNIGHT THROUGH SATURDAY MORNING. SEAS WILL DECREASE SATURDAY
  AFTERNOON.

* AREAS AFFECTED: HIGHEST SEAS WILL BE SOUTH OF CHARLESTON AND
  BEYOND 30 NM FROM SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES WILL
BE STEEP ENOUGH TO CREATE A POTENTIAL HAZARD TO SMALL CRAFT.

&&

$$

PZZ356-241800-
/O.NEW.KMFR.SW.Y.0030.120324T0600Z-120324T1800Z/
COASTAL WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA OUT 10 NM-
1057 PM PDT FRI MAR 23 2012

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 11 AM
PDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS...WHICH IS IN EFFECT UNTIL 11 AM PDT
SATURDAY.

* SEAS: FRESH SOUTHERLY SWELL OF 9 TO 10 FEET AT 8 TO 9 SECONDS
  WILL CAUSE HAZARDOUS CONDITIONS FOR SMALL CRAFT OVERNIGHT
  THROUGH SATURDAY MORNING. SEAS WILL SUBSIDE SATURDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES WILL
BE STEEP ENOUGH TO CREATE A POTENTIAL HAZARD TO SMALL CRAFT.

&&

$$

SPILDE

HTTP://WWW.WEATHER.GOV/MEDFORD
1 follow-up statement
606 
WHUS76 KMFR 240946
MWWMFR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
246 AM PDT SAT MAR 24 2012

PZZ376-242300-
/O.CON.KMFR.SE.W.0021.000000T0000Z-120324T1200Z/
/O.CON.KMFR.SI.Y.0036.000000T0000Z-120324T1500Z/
/O.NEW.KMFR.SE.A.0012.120326T2100Z-120327T1200Z/
/O.NEW.KMFR.SR.A.0006.120326T2100Z-120327T1200Z/
WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA FROM 10 TO 60 NM-
246 AM PDT SAT MAR 24 2012

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM PDT EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 8 AM
PDT THIS MORNING...
...HAZARDOUS SEAS WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
...STORM WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A STORM
WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT. A HAZARDOUS SEAS WATCH HAS ALSO BEEN ISSUED. THIS
HAZARDOUS SEAS WATCH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT. A HAZARDOUS SEAS WARNING REMAINS IN EFFECT
UNTIL 5 AM PDT EARLY THIS MORNING. A SMALL CRAFT ADVISORY FOR
WINDS REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING. 

* WINDS: SOUTH TO SOUTHEAST WINDS OF 20 TO 25 KT WILL DECREASE TO
  10 TO 20 KT DURING THE MORNING. MONDAY AFTERNOON INTO MONDAY
  NIGHT...A STRONG STORM MAY BRING STORM FORCE SOUTHERLY WINDS OF
  40 TO 45 KT WITH GUSTS TO 60 KT.

* SEAS: A CHAOTIC MIX OF WESTERLY SWELL AND SOUTHERLY WIND WAVES
  WILL CAUSE COMBINED SEAS OF 10 TO 15 FT EARLY THIS MORNING. THEN
  SEAS WILL SUBSIDE TO SMALL CRAFT ADVISORY DURING THE MORNING
  WITH SEAS OF 9 TO 11 FEET AT 13 SECONDS. SEAS WILL LOWER TO 6
  TO 8 FEET TONIGHT. THEN...MONDAY AFTERNOON INTO MONDAY NIGHT
  SEAS MAY INCREASE TO 15 TO 20 FEET...BECOMING DOMINATED BY VERY
  STEEP WIND WAVES.

* AREAS AFFECTED: HIGHEST WINDS AND SEAS TODAY WILL BE BEYOND 20
  NM FROM SHORE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURING. 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.

SMALL CRAFT CONDITIONS FOR WIND MEANS THAT WIND SPEEDS OF 23 TO
33 KNOTS ARE EXPECTED. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

A STORM WATCH IS ISSUED WHEN THE RISK OF STORM FORCE WINDS HAS
SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING AND/OR LOCATION
IS STILL UNCERTAIN.

A HAZARDOUS SEAS WATCH IS ISSUED WHEN THE RISK OF HAZARDOUS SEAS
HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING AND/OR
LOCATION IS STILL UNCERTAIN.  IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

PZZ356-242300-
/O.EXT.KMFR.SW.Y.0030.000000T0000Z-120325T0000Z/
COASTAL WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA OUT 10 NM-
246 AM PDT SAT MAR 24 2012

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS NOW IN EFFECT UNTIL
5 PM PDT THIS AFTERNOON...

THE SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IS NOW IN EFFECT
UNTIL 5 PM PDT THIS AFTERNOON. 

* SEAS: FRESH SOUTHERLY SWELL OF 9 TO 10 FEET AT 8 TO 9 SECONDS
  COMBINED WITH A WEST SWELL OF 6 TO 7 FEET AT 13 SECONDS WILL
  CAUSE HAZARDOUS CONDITIONS FOR SMALL CRAFT THROUGH EARLY THIS
  MORNING. SEAS WILL SUBSIDE LATE THIS AFTERNOON INTO THIS
  EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES WILL
BE STEEP ENOUGH TO CREATE A POTENTIAL HAZARD TO SMALL CRAFT.

&&

$$

PZZ370-242300-
/O.CON.KMFR.SW.Y.0030.000000T0000Z-120324T1800Z/
/O.NEW.KMFR.SE.A.0012.120326T2100Z-120327T1200Z/
/O.NEW.KMFR.SR.A.0006.120326T2100Z-120327T1200Z/
WATERS FROM FLORENCE TO CAPE BLANCO OR FROM 10 TO 60 NM-
246 AM PDT SAT MAR 24 2012

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT
UNTIL 11 AM PDT THIS MORNING...
...HAZARDOUS SEAS WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
...STORM WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A STORM
WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT. A HAZARDOUS SEAS WATCH HAS ALSO BEEN ISSUED. THIS
HAZARDOUS SEAS WATCH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT. A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS
REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING. 

* WINDS: SOUTH 10 TO 20 KT WINDS TODAY WILL DECREASE FURTHER
  TONIGHT INTO SUNDAY. THEN...MONDAY AFTERNOON INTO MONDAY
  NIGHT...A STRONG STORM MAY BRING STORM FORCE SOUTHERLY WINDS OF
  40 TO 45 KT WITH GUSTS TO 60 KT.

* SEAS: A CHAOTIC MIX OF WESTERLY SWELL AND FRESH SHORTER PERIOD
  SOUTHERLY SWELL WILL CAUSE COMBINED SEAS OF 9 TO 12 FEET EARLY
  THIS MORNING. SEAS WILL DECREASE TO 6 TO 8 FEET WITH A DOMINANT
  PERIOD OF 13 SECONDS BY EARLY THIS AFTERNOON. THEN...MONDAY
  AFTERNOON INTO MONDAY NIGHT SEAS MAY INCREASE TO 15 TO 20
  FEET...BECOMING DOMINATED BY VERY STEEP WIND WAVES.

* AREAS AFFECTED: HIGHEST SEAS WILL BE SOUTH OF CHARLESTON AND 
  BEYOND 30 NM FROM SHORE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES WILL
BE STEEP ENOUGH TO CREATE A POTENTIAL HAZARD TO SMALL CRAFT.

A STORM WATCH IS ISSUED WHEN THE RISK OF STORM FORCE WINDS HAS
SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING AND/OR LOCATION
IS STILL UNCERTAIN.

A HAZARDOUS SEAS WATCH IS ISSUED WHEN THE RISK OF HAZARDOUS SEAS
HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING AND/OR
LOCATION IS STILL UNCERTAIN.  IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$


HTTP://WWW.WEATHER.GOV/MEDFORD

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 23, 10:57 PM PDTSmall Craft Advisory for WindsMFR9 hr
Mar 23, 10:57 PM PDTSmall Craft Advisory for Hazardous SeasMFR16 hr
Mar 24, 2:46 AM PDTHazardous Seas WatchMFR36 hr
Mar 24, 2:46 AM PDTStorm WatchMFR36 hr
Mar 24, 2:58 AM PDTWind AdvisoryMFRSiskiyou8 hr

Nearby

Hazardous Seas Warnings in Oregon, 2012Every hazardous seas warning in 2012

Sources

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