HIGH SURF ADVISORY
Warning Issue Date: 300 AM AST SUN DEC 27 2009
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 AM AST WEDNESDAY...
A HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 AM AST WEDNESDAY.
LONG PERIOD...NORTH NORTHEAST SWELLS WILL CONTINUE TO BUILD
ACROSS THE ATLANTIC WATERS AND THE CARIBBEAN PASSAGES SUNDAY
MORNING THROUGH TUESDAY...RESULTING IN INCREASINGLY DANGEROUS SURF
CONDITIONS ACROSS THE NORTHERN EXPOSED COASTLINES OF MOST OF THE
LOCAL ISLANDS. ALTHOUGH INITIALLY A BORDERLINE SITUATION
THIS MORNING...THESE SWELLS WILL CONTINUE TO BUILD LATER TONIGHT
THROUGH MONDAY... RESULTING IN MORE FREQUENT BREAKING WAVES OF 10
TO 15 FEET ALONG THE LOCAL REEFS... BEACHES AND SHOALS OF THE
LOCAL ISLANDS AND DANGEROUS RIP CURRENTS. THEREFORE...A HIGH THE
SURF ADVISORY IS BEING CONTINUED.
NEW...VERY LARGE NORTH NORTHEAST SWELLS OF 8 TO POTENTIALLY 11 OR
12 FEET...WITH VERY LONG WAVE PERIODS OF 14 TO 16 SECONDS ARE
EXPECTED TO INVADE THE LOCAL WATERS BEGINNING LATE MONDAY OR MONDAY
NIGHT...PEAK ON TUESDAY AND THEN CONTINUE THROUGH AT LEAST EARLY
WEDNESDAY. THESE SWELLS WILL LIKELY PRODUCE VERY LARGE BREAKING
WAVES OF 15 TO 22 FEET OR GREATER AND FREQUENT STRONG RIP
CURRENTS...RESULTING IN EXTREMELY DANGEROUS SURF CONDITIONS. IN
ADDITION...SIMILAR SWELL EVENTS OF THIS SIZE AND DURATION HAVE
PRODUCED SIGNIFICANT COASTAL FLOODING ALONG PARTS OF THE NORTHERN
COAST OF PUERTO RICO...AND A COASTAL FLOOD WATCH MAY ALSO BECOME
NECESSARY ON LATER SUNDAY OR SUNDAY NIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE BREAKING WAVES WILL GENERATE STRONG AND DANGEROUS CURRENTS
WITHIN THE SURF ZONE...CALLED RIP CURRENTS. THESE NARROW OUTWARD
FLOWING CURRENTS CAN CARRY PEOPLE AND ANIMALS AWAY FROM THE COAST
LINE AND OUT TO SEA. IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT
PANIC. CALMLY...REMAIN AFLOAT...GATHER YOUR BEARINGS RELATIVE TO THE
BEACH...AND SWIM PARALLEL TO THE BEACH. YOU WILL EVENTUALLY LEAVE
THE GRIP OF THIS NARROW CURRENT...AND BE ABLE TO SAFELY SWIM TO
SHORE.
LOCAL BEACH GOERS...AND INEXPERIENCED SURFERS AND SWIMMERS ARE URGED
TO STAY OUT OF THE WATER UNTIL THESE HAZARDOUS SURF CONDITIONS
SUBSIDE. PERSONS ON THE BEACH SHOULD BE VIGILANT FOR LARGE BREAKING
WAVES SURGING UPON THE SHORE...WHICH CAN CARRY PEOPLE OF ALL SIZES
INTO THE OCEAN. YOU SHOULD AVOID BEING NEAR THE SHORE LINE AND STAY
OFF OF ROCK FORMATIONS.
THESE SURGING WAVES WILL ALSO CREATE THE POTENTIAL FOR BEACH EROSION
DURING TIMES OF HIGH TIDE.
THE TIMES AND HEIGHTS OF THE NEXT HIGH TIDES FOR THE FOLLOWING
LOCATIONS ARE:
SAN JUAN HARBOR: 1.5 FEET AT 5:21 AM AST SUNDAY AND 3:57 PM AT
0.9 FEET AND 1.6 FEET AT 6:17 AM MONDAY
MAGENS BAY ST THOMAS: 1.1 FEET AT 6:41 AM AST SUNDAY AND 1.3 FEET AT
7:21 AM MONDAY
PLEASE STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST
INFORMATION ON THIS INCREASINGLY DANGEROUS MARINE SITUATION FROM
YOUR NATIONAL WEATHER SERVICE FORECAST OFFICE IN SAN JUAN.
THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE
INFORMATION...IS AVAILABLE ON THE WEB AT HTTP://WWW.SRH.NOAA.GOV/SJU
OR AT HTTP://WEATHER.GOV.
$$
SNELL
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