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PRZ001-002-005-008-010-012-013-VIZ001-172315-
/O.NEW.TJSJ.CF.A.0001.080318T1000Z-080319T0000Z/
SAN JUAN AND VICINITY-NORTHEAST-NORTH CENTRAL-NORTHWEST-
MAYAGUEZ AND VICINITY-CULEBRA-VIEQUES-
ST. THOMAS/ST. JOHN/ADJACENT ISLANDS-
1106 AM AST MON MAR 17 2008

...COASTAL FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A COASTAL FLOOD
WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING.

A LOW PRESSURE SYSTEM ACROSS THE NORTHWEST ATLANTIC THIS MORNING
HAS DEEPENED RAPIDLY DURING THE PAST 24 HOURS...AND HAS
INTENSIFIED INTO A LARGE WINTER STORM SYSTEM WITH HURRICANE FORCE
WINDS. THIS SYSTEM IS FORECAST TO MOVE SLOWLY EAST NORTHEASTWARD
ACROSS THE NORTHWEST ATLANTIC DURING THE NEXT FEW DAYS...AND HAS
ALREADY BEGUN TO GENERATE VERY LARGE SWELLS DIRECTED TOWARDS THE
LOCAL REGION. VERY LARGE SWELLS IN EXCESS OF 10 FEET AT 15 SECONDS
ARE FORECAST TO REACH THE LOCAL REEFS...SHOALS...AND COASTLINES BY
TUESDAY EVENING...AND WILL CREATE TREMENDOUS BREAKING WAVES OF 15
TO 25 FEET ACROSS THE SHOALS AND OUTER REEFS OF THE LOCAL REGION.
THIS WILL CREATE A HIGH POTENTIAL FOR COASTAL FLOODING ALONG THE
LOCAL BEACHES WITH NORTH AND NORTHEAST EXPOSURE...TUESDAY EVENING
THROUGH THURSDAY EVENING. THIS MAY BECOME THE LARGEST WINTER SWELL
EVENT IN THE PAST FEW YEARS. WAVE RUN-UP ALONG THE LOCAL BEACHES
MAY REACH ELEVATIONS 2 TO 4 FEET ABOVE SEA LEVEL.

THE GREATEST POTENTIAL FOR COASTAL FLOODING AND BEACH EROSION
WILL BE DURING TIMES OF HIGH TIDE.