Hurricane Omar: Wed AM Update

HURRICANE OMAR INTERMEDIATE ADVISORY NUMBER 8A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL152008
800 AM AST WED OCT 15 2008

...OMAR STRENGTHENS SLIGHTLY AS IT CONTINUES TO MOVE SLOWLY
NORTHEASTWARD ACROSS THE EASTERN CARIBBEAN SEA...

A HURRICANE WARNING IS IN EFFECT FOR THE U.S. VIRGIN ISLANDS AND THE
ISLANDS OF VIEQUES AND CULEBRA.

A HURRICANE WARNING IS ALSO IN EFFECT FOR ST. MARTIN/MAARTEN...
SABA...ST. EUSTATIUS...ST. BARTHELEMY...THE BRITISH VIRGIN
ISLANDS...ANGUILLA...ST. KITTS...AND NEVIS.

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO
PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION.

A TROPICAL STORM WARNING IS IN EFFECT FOR ANTIGUA...BARBUDA...AND
MONTSERRAT.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.

A HURRICANE WATCH AND A TROPICAL STORM WARNING REMAIN IN EFFECT FOR
PUERTO RICO.

A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS.

A HURRICANE WARNING COULD BE REQUIRED FOR PUERTO RICO LATER TODAY.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.

AT 800 AM AST...1200Z...THE CENTER OF HURRICANE OMAR WAS LOCATED
NEAR LATITUDE 14.9 NORTH...LONGITUDE 67.5 WEST OR ABOUT 265
MILES...425 KM...SOUTHWEST OF ST. CROIX AND ABOUT 265 MILES...
425 KM...SOUTH-SOUTHWEST OF SAN JUAN PUERTO RICO.

OMAR IS MOVING TOWARD THE NORTHEAST NEAR 7 MPH...11 KM/HR...AND THIS
MOTION IS EXPECTED TO CONTINUE WITH A GRADUAL INCREASE IN FORWARD
SPEED OVER THE NEXT DAY OR TWO. ON THE FORECAST TRACK...OMAR WOULD
MOVE THROUGH THE NORTHERN LEEWARD ISLANDS LATE TONIGHT AND EARLY
THURSDAY.

REPORTS FROM AN AIR FORCE RESERVE UNIT HURRICANE HUNTER AIRCRAFT
INDICATE MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 80 MPH...
130 KM/HR...WITH HIGHER GUSTS. OMAR IS A CATEGORY ONE HURRICANE ON
THE SAFFIR-SIMPSON SCALE. ADDITIONAL STRENGTHENING IS FORECAST
DURING THE NEXT 24 HOURS...AND OMAR COULD BE A CATEGORY 2 HURRICANE
BY THE TIME IT REACHES THE NORTHERN LEEWARD ISLANDS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES...30 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105
MILES...165 KM. DURING THE PAST HOUR...A NOAA BUOY LOCATED JUST
NORTH OF THE EYE OF OMAR REPORTED A WIND GUST TO 58 MPH...94 KM/HR.

THE MINIMUM CENTRAL PRESSURE PRESSURE ESTIMATED FROM AIR FORCE
HURRICANE HUNTER AIRCRAFT OBSERVATIONS IS 984 MB...29.06 INCHES.

OMAR IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF 4 TO 8 INCHES
OVER PORTIONS OF THE NETHERLANDS ANTILLES...WITH MAXIMUM AMOUNTS OF
12 INCHES POSSIBLE. RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH MAXIMUM
AMOUNTS OF 6 INCHES ARE POSSIBLE ACROSS EXTREME NORTHWESTERN AND
NORTH-CENTRAL VENEZUELA AND THE NORTHERN GUAJIRA PENINSULA. TOTAL
RAINFALL AMOUNTS OF 5 TO 10 INCHES...WITH MAXIMUM AMOUNTS UP TO 20
INCHES...WILL BE POSSIBLE ACROSS PUERTO RICO AND THE NORTHERN
LEEWARD ISLANDS. THESE RAINS COULD PRODUCE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES.

COASTAL STORM SURGE FLOODING OF 1 TO 2 FEET ABOVE NORMAL TIDE
LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE
EXPECTED NEAR AND TO THE RIGHT OF THE PATH OF OMAR. IN ADDITION...
OMAR IS EXPECTED TO PRODUCE LARGE SWELLS THAT WILL AFFECT THE WEST-
AND SOUTH-FACING COASTS OF PUERTO RICO AND THE ISLANDS OF THE
LESSER ANTILLES. THESE SWELLS COULD CAUSE BEACH EROSION AND DAMAGE
TO COASTAL STRUCTURES.

REPEATING THE 800 AM AST POSITION...14.9 N...67.5 W. MOVEMENT
TOWARD...NORTHEAST NEAR 7 MPH. MAXIMUM SUSTAINED WINDS...80 MPH.
MINIMUM CENTRAL PRESSURE...984 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER
AT 1100 AM AST.


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