Post by NHC Olney Maryland on Aug 31, 2008 12:46:33 GMT -5
BULLETIN
TROPICAL STORM HANNA INTERMEDIATE ADVISORY NUMBER 12A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
200 AM AST SUN AUG 31 2008
...HANNA STRENGTHENS SLIGHTLY EAST OF THE BAHAMAS...
A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE SOUTHEASTERN
BAHAMAS...INCLUDING THE ACKLINS...CROOKED ISLAND...THE
INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS...AS WELL AS FOR
THE TURKS AND CAICOS ISLANDS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.
AT 200 AM AST...0600Z...THE CENTER OF TROPICAL STORM HANNA WAS
LOCATED NEAR LATITUDE 23.0 NORTH...LONGITUDE 68.1 WEST OR ABOUT 220
MILES...355 KM...EAST-NORTHEAST OF GRAND TURK ISLAND.
HANNA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH...13 KM/HR.
A WEST TO WEST-NORTHWESTWARD MOTION IS EXPECTED WITH A GRADUAL
DECREASE IN FORWARD SPEED DURING THE NEXT COUPLE OF DAYS. ON THE
FORECAST TRACK...THE CENTER OF HANNA IS EXPECTED TO MOVE NEAR OR
JUST NORTHEAST OF THE TURKS AND CAICOS ISLANDS LATE TODAY OR
MONDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 55 MPH...95 KM/HR...WITH HIGHER
GUSTS. SOME GRADUAL STRENGTHENING IS FORECAST DURING THE NEXT
COUPLE OF DAYS.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM
FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB...29.50 INCHES.
LONG-PERIOD SWELLS FROM HANNA ARE EXPECTED TO INCREASE THE RISK
OF DANGEROUS RIP CURRENTS ALONG PORTIONS OF THE SOUTHEASTERN
UNITED STATES COAST DURING THE NEXT COUPLE OF DAYS.
REPEATING THE 200 AM AST POSITION...23.0 N...68.1 W. MOVEMENT
TOWARD...WEST-NORTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS...55
MPH. MINIMUM CENTRAL PRESSURE...999 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 500 AM AST.