354  
WHUS76 KMFR 252355  
MWWMFR  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MEDFORD OR  
355 PM PST WED NOV 25 2009  
   
..LARGE LONG PERIOD SWELLS THIS EVENING THROUGH FRIDAY AFTERNOON
 
 
.STRONG LOW PRESSURE IN THE GULF OF ALASKA HAS GENERATED LARGE  
SWELLS. THE SWELLS WILL BEGIN TO REACH THE COAST THIS  
EVENING...AHEAD OF A COLD FRONT THAT WILL BRING STRONGER WINDS  
WITH ELEVATED WIND WAVES THANKSGIVING DAY INTO THURSDAY EVENING.  
 
PZZ370-261200-  
/O.CON.KMFR.SW.Y.0106.000000T0000Z-091127T0600Z/  
/O.NEW.KMFR.SI.Y.0122.091126T1800Z-091127T1800Z/  
/O.EXT.KMFR.SE.A.0027.091127T0600Z-091128T0000Z/  
WATERS FROM FLORENCE TO CAPE BLANCO OR FROM 10 TO 60 NM-  
355 PM PST WED NOV 25 2009  
 
...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT  
UNTIL 10 PM PST THURSDAY...  
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT FROM 10 AM THURSDAY  
TO 10 AM PST FRIDAY...  
...HAZARDOUS SEAS WATCH NOW IN EFFECT FROM THURSDAY EVENING  
THROUGH FRIDAY AFTERNOON...  
 
THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SMALL CRAFT  
ADVISORY FOR WINDS...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO  
10 AM PST FRIDAY. THE HAZARDOUS SEAS WATCH IS NOW IN EFFECT FROM  
THURSDAY EVENING THROUGH FRIDAY AFTERNOON. A SMALL CRAFT ADVISORY  
FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL 10 PM PST THURSDAY.  
 
SEAS WILL RAPIDLY BUILD THIS EVENING INTO THURSDAY MORNING AS  
LONGER PERIOD WEST SWELLS ARRIVE AND SOUTH WINDS INCREASE AHEAD  
OF A COLD FRONT. WINDS AND SEAS WILL SHIFT TO NORTHWEST BEHIND THE  
FRONT THURSDAY NIGHT...AND REMAIN AT ELEVATED LEVELS INTO FRIDAY.  
 
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 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.  
 
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.  
 

 
 

 
 
PZZ350-376-261200-  
/O.CON.KMFR.SW.Y.0106.091126T0000Z-091127T0600Z/  
/O.NEW.KMFR.SI.Y.0122.091126T1800Z-091127T1800Z/  
/O.EXT.KMFR.SE.A.0027.091127T0600Z-091128T0000Z/  
COASTAL WATERS FROM FLORENCE TO CAPE BLANCO OR OUT 10 NM-  
WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA FROM 10 TO 60 NM-  
355 PM PST WED NOV 25 2009  
 
...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT  
UNTIL 10 PM PST THURSDAY...  
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT FROM 10 AM THURSDAY  
TO 10 AM PST FRIDAY...  
...HAZARDOUS SEAS WATCH NOW IN EFFECT FROM THURSDAY EVENING  
THROUGH FRIDAY AFTERNOON...  
 
THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SMALL CRAFT  
ADVISORY FOR WINDS...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO  
10 AM PST FRIDAY. THE HAZARDOUS SEAS WATCH IS NOW IN EFFECT FROM  
THURSDAY EVENING THROUGH FRIDAY AFTERNOON. A SMALL CRAFT ADVISORY  
FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL 10 PM PST THURSDAY.  
 
SEAS WILL RAPIDLY BUILD THIS EVENING INTO THURSDAY MORNING AS  
LONGER PERIOD WEST SWELLS ARRIVE AND SOUTH WINDS INCREASE AHEAD  
OF A COLD FRONT. WINDS AND SEAS WILL SHIFT TO NORTHWEST BEHIND THE  
FRONT THURSDAY NIGHT...AND REMAIN AT ELEVATED LEVELS INTO FRIDAY.  
 
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 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.  
 
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.  
 

 
 

 
 
PZZ356-261200-  
/O.CON.KMFR.SW.Y.0106.091126T0600Z-091127T0600Z/  
/O.NEW.KMFR.SI.Y.0122.091126T1800Z-091127T1800Z/  
/O.EXT.KMFR.SE.A.0027.091127T0600Z-091128T0000Z/  
COASTAL WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA OUT 10 NM-  
355 PM PST WED NOV 25 2009  
 
...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT FROM  
10 PM THIS EVENING TO 10 PM PST THURSDAY...  
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT FROM 10 AM THURSDAY  
TO 10 AM PST FRIDAY...  
...HAZARDOUS SEAS WATCH NOW IN EFFECT FROM THURSDAY EVENING  
THROUGH FRIDAY AFTERNOON...  
 
THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SMALL CRAFT  
ADVISORY FOR WINDS...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO  
10 AM PST FRIDAY. THE HAZARDOUS SEAS WATCH IS NOW IN EFFECT FROM  
THURSDAY EVENING THROUGH FRIDAY AFTERNOON. A SMALL CRAFT ADVISORY  
FOR HAZARDOUS SEAS REMAINS IN EFFECT FROM 10 PM THIS EVENING TO  
10 PM PST THURSDAY.  
 
SEAS WILL RAPIDLY BUILD THIS EVENING INTO THURSDAY MORNING AS  
LONGER PERIOD WEST SWELLS ARRIVE AND SOUTH WINDS INCREASE AHEAD  
OF A COLD FRONT. WINDS AND SEAS WILL SHIFT TO NORTHWEST BEHIND THE  
FRONT THURSDAY NIGHT...AND REMAIN AT ELEVATED LEVELS INTO FRIDAY.  
 
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 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.  
 
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.  
 

 
 

 
 
DW  
 
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