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Hurricane OMAR


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HURRICANE OMAR INTERMEDIATE ADVISORY NUMBER  11A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL152008
100 AM AST THU OCT 16 2008
 
...OMAR CROSSING THE NORTHERN LEEWARD ISLANDS WITH 120 MPH WINDS....
 
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...AND ANGUILLA.  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 HURRICANE WATCH AND A TROPICAL STORM WARNING REMAIN IN EFFECT FOR
PUERTO RICO...AND ALSO FOR THE ISLANDS OF ST. KITTS AND NEVIS.
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...IN THIS CASE...WITHIN THE NEXT 24 HOURS.
 
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 TROPICAL STORM WATCH IS IN EFFECT FOR GUADELOUPE.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.
 
AT 100 AM AST...0500Z...THE EYE OF HURRICANE OMAR WAS LOCATED
BY RADAR AND RECONNAISSANCE AIRCRAFT NEAR LATITUDE 17.9
NORTH...LONGITUDE 64.2 WEST OR ABOUT 25 MILES...45 KM...
EAST-NORTHEAST OF ST. CROIX AND ABOUT 75 MILES...115 KM...
WEST-SOUTHWEST OF ST. MARTIN.
 
OMAR IS MOVING TOWARD THE NORTHEAST NEAR 20 MPH...32 KM/HR...AND
THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF
DAYS.  ON THE FORECAST TRACK...THE CORE OF OMAR WILL BE PASSING
BETWEEN THE VIRGIN ISLANDS AND THE NORTHERN LEEWARD ISLANDS DURING
THE NEXT COUPLE OF HOURS.
 
REPORTS FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE
THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 120 MPH...
195 KM/HR...WITH HIGHER GUSTS.  OMAR IS A CATEGORY THREE
HURRICANE ON THE SAFFIR-SIMPSON SCALE.  SOME ADDITIONAL
STRENGTHENING IS POSSIBLE TONIGHT AS OMAR MOVES THROUGH THE
NORTHERN LEEWARD ISLANDS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 115
MILES...185 KM.  ST. MAARTEN RECENTLY REPORTED A WIND GUST OF 56
MPH...91 KM/HR.
 
THE MINIMUM CENTRAL PRESSURE JUST REPORTED BY THE HURRICANE HUNTER
WAS 961 MB...28.38 INCHES.
 
OMAR IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF 5 TO 10
INCHES...WITH MAXIMUM AMOUNTS UP TO 20 INCHES...WILL BE POSSIBLE
ACROSS THE NORTHERN LEEWARD ISLANDS...THE VIRGIN ISLANDS...
VIEQUES...AND CULEBRA.  ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4
INCHES WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 8 INCHES ARE POSSIBLE
FOR PUERTO RICO.  THESE RAINS COULD PRODUCE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES.
 
COASTAL STORM SURGE FLOODING OF 4 TO 6 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.  COASTAL STORM
SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH
LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED ALONG THE
COASTS OF THE VIRGIN ISLANDS AND PUERTO RICO.  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 100 AM AST POSITION...17.9 N...64.2 W.  MOVEMENT
TOWARD...NORTHEAST NEAR 20 MPH.  MAXIMUM SUSTAINED WINDS...120 MPH.
MINIMUM CENTRAL PRESSURE...961 MB.
 
THE NEXT INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 300 AM AST...FOLLOWED BY THE NEXT COMPLETE
ADVISORY AT 500 AM AST.
$$

FORECASTER AVILA
 
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