FZUS76 KMFR 042341 MWSMFR MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 341 PM PST WED NOV 4 2009 PZZ350-356-370-376-051800- /X.NEW.KMFR.MA.S.0002.091104T2341Z-091106T0000Z/ COASTAL WATERS FROM FLORENCE TO CAPE BLANCO OR OUT 10 NM- COASTAL WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA OUT 10 NM- WATERS FROM FLORENCE TO CAPE BLANCO OR FROM 10 TO 60 NM- WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA FROM 10 TO 60 NM- 341 PM PST WED NOV 4 2009 ...VERY LARGE WEST-NORTHWEST SWELLS EXPECTED FRIDAY THROUGH SUNDAY... LOW PRESSURE WILL DEEPEN IN THE GULF OF ALASKA THROUGH THURSDAY...BECOMING UNSEASONABLY STRONG. THIS WILL GENERATE VERY LARGE WEST-NORTHWEST SWELLS THAT WILL MOVE INTO THE SOUTHERN OREGON AND NORTHWEST CALIFORNIA WATERS EARLY FRIDAY...PERSISTING THROUGH THE DAY ON SUNDAY. AROUND SUNRISE ON FRIDAY MORNING WEST-NORTHWEST SWELLS OF 13 TO 18 FEET AT A DOMINANT PERIOD OF 12 SECOND ARE EXPECTED. DURING THE DAY FRIDAY INTO FRIDAY EVENING THESE SWELLS WILL BUILD TO 23 TO 28 FEET AT A DOMINANT PERIOD OF 17 SECONDS. THESE VERY LARGE SWELLS WILL BE...BY FAR...THE LARGEST EXPERIENCED THUS FAR THIS SEASON. WAVES OF THIS MAGNITUDE WILL CAUSE AVERAGE BREAKER HEIGHTS NEAR BAR CROSSINGS AND IN THE SURF ZONE TO REACH 18 TO 22 FEET EARLY FRIDAY MORNING...BUILDING TO 32 TO 37 FEET ON FRIDAY EVENING. WHILE SWELLS WILL SUBSIDE A BIT THROUGH SUNDAY...SWELL HEIGHTS ARE EXPECTED TO REMAIN ABOVE 18 FEET THROUGH THE DAY ON SUNDAY. USE EXTREME CAUTION IF CONSIDERING TO VENTURE IN OR NEAR THE OCEAN FRIDAY THROUGH SUNDAY...AS THESE SWELLS WILL BE EXTREMELY POWERFUL. $$ LUTZ