Post by NHC Olney Maryland on Sept 3, 2008 10:52:56 GMT -5
BULLETIN
TROPICAL STORM HANNA INTERMEDIATE ADVISORY NUMBER 25A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
200 AM AST WED SEP 03 2008
...HANNA DRIFTING SOUTHWARD TOWARD NORTHERN HAITI...
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
A HURRICANE WATCH IS IN EFFECT FOR THE NORTHWESTERN BAHAMAS...
INCLUDING THE ABACOS...ANDROS ISLAND...BERRY ISLANDS...BIMINI...
ELEUTHERA...GRAND BAHAMA ISLAND...AND NEW PROVIDENCE. A HURRICANE
WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE
WARNING AREA...GENERALLY WITHIN THE NEXT 36 HOURS.
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE NORTHERN COAST OF
THE DOMINICAN REPUBLIC FROM PUERTO PLATA WESTWARD TO BAHIA DE
MANZANILLO. A TROPICAL STORM WARNING IS ALSO IN EFFECT FOR HAITI
FROM THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC TO
PORT-AU-PRINCE. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM
CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24
HOURS.
INTERESTS IN THE SOUTHEASTERN UNITED STATES SHOULD MONITOR THE
PROGRESS OF HANNA.
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 20.1 NORTH...LONGITUDE 72.5 WEST OR JUST EAST
OF ILE DE LA TORTUE HAITI AND ABOUT 80 MILES...130 KM...
SOUTH-SOUTHEAST OF GREAT INAGUA ISLAND.
HANNA HAS BEEN MOVING SOUTHWARD DURING THE PAST FEW HOURS.
HOWEVER...DECREASE IN FORWARD SPEED WITH A TURN TO THE NORTH OR
NORTHWEST IS EXPECTED TO BEGIN LATER TODAY...FOLLOWED BY A
NORTHWESTWARD MOTION WITH SOME INCREASE IN FORWARD SPEED TONIGHT.
ON THE FORECAST TRACK...HANNA IS EXPECTED TO MOVE ACROSS THE
SOUTHEASTERN BAHAMAS LATER TODAY...MOVE NEAR OR OVER THE CENTRAL
BAHAMAS TONIGHT...AND BE NEAR THE NORTHWESTERN BAHAMAS ON THURSDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 65 MPH...100 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST TODAY...BUT SOME
STRENGTHENING IS EXPECTED TONIGHT AND THURSDAY...AND HANNA
COULD REGAIN HURRICANE STRENGTH DURING THAT PERIOD.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...370 KM
FROM THE CENTER.
MINIMUM CENTRAL PRESSURE ESTIMATED FROM AIR FORCE RESERVE UNIT
RECONNAISSANCE AIRCRAFT OBSERVATIONS IS 990 MB...29.24 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES...
WITH MAXIMUM ISOLATED AMOUNTS OF 12 INCHES...OVER THE SOUTHEASTERN
BAHAMAS...THE TURKS AND CAICOS ISLANDS...AND EASTERN CUBA.
RAINFALL TOTALS OF 6 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS
OF UP TO 15 INCHES...ARE POSSIBLE OVER HISPANIOLA WHERE THESE RAINS
COULD CAUSE LIFE-THREATENING MUD SLIDES AND FLASH FLOODING.
COASTAL STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL TIDE
LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE
EXPECTED IN AREAS OF ONSHORE FLOW WITHIN THE HURRICANE WARNING AREA.
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...20.1 N...72.5 W. MOVEMENT...
DRIFTING SOUTHWARD. MAXIMUM SUSTAINED WINDS...65 MPH. MINIMUM
CENTRAL PRESSURE...990 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 500 AM AST.
TROPICAL STORM HANNA INTERMEDIATE ADVISORY NUMBER 25A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
200 AM AST WED SEP 03 2008
...HANNA DRIFTING SOUTHWARD TOWARD NORTHERN HAITI...
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
A HURRICANE WATCH IS IN EFFECT FOR THE NORTHWESTERN BAHAMAS...
INCLUDING THE ABACOS...ANDROS ISLAND...BERRY ISLANDS...BIMINI...
ELEUTHERA...GRAND BAHAMA ISLAND...AND NEW PROVIDENCE. A HURRICANE
WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE
WARNING AREA...GENERALLY WITHIN THE NEXT 36 HOURS.
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE NORTHERN COAST OF
THE DOMINICAN REPUBLIC FROM PUERTO PLATA WESTWARD TO BAHIA DE
MANZANILLO. A TROPICAL STORM WARNING IS ALSO IN EFFECT FOR HAITI
FROM THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC TO
PORT-AU-PRINCE. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM
CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24
HOURS.
INTERESTS IN THE SOUTHEASTERN UNITED STATES SHOULD MONITOR THE
PROGRESS OF HANNA.
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 20.1 NORTH...LONGITUDE 72.5 WEST OR JUST EAST
OF ILE DE LA TORTUE HAITI AND ABOUT 80 MILES...130 KM...
SOUTH-SOUTHEAST OF GREAT INAGUA ISLAND.
HANNA HAS BEEN MOVING SOUTHWARD DURING THE PAST FEW HOURS.
HOWEVER...DECREASE IN FORWARD SPEED WITH A TURN TO THE NORTH OR
NORTHWEST IS EXPECTED TO BEGIN LATER TODAY...FOLLOWED BY A
NORTHWESTWARD MOTION WITH SOME INCREASE IN FORWARD SPEED TONIGHT.
ON THE FORECAST TRACK...HANNA IS EXPECTED TO MOVE ACROSS THE
SOUTHEASTERN BAHAMAS LATER TODAY...MOVE NEAR OR OVER THE CENTRAL
BAHAMAS TONIGHT...AND BE NEAR THE NORTHWESTERN BAHAMAS ON THURSDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 65 MPH...100 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST TODAY...BUT SOME
STRENGTHENING IS EXPECTED TONIGHT AND THURSDAY...AND HANNA
COULD REGAIN HURRICANE STRENGTH DURING THAT PERIOD.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...370 KM
FROM THE CENTER.
MINIMUM CENTRAL PRESSURE ESTIMATED FROM AIR FORCE RESERVE UNIT
RECONNAISSANCE AIRCRAFT OBSERVATIONS IS 990 MB...29.24 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES...
WITH MAXIMUM ISOLATED AMOUNTS OF 12 INCHES...OVER THE SOUTHEASTERN
BAHAMAS...THE TURKS AND CAICOS ISLANDS...AND EASTERN CUBA.
RAINFALL TOTALS OF 6 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS
OF UP TO 15 INCHES...ARE POSSIBLE OVER HISPANIOLA WHERE THESE RAINS
COULD CAUSE LIFE-THREATENING MUD SLIDES AND FLASH FLOODING.
COASTAL STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL TIDE
LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE
EXPECTED IN AREAS OF ONSHORE FLOW WITHIN THE HURRICANE WARNING AREA.
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...20.1 N...72.5 W. MOVEMENT...
DRIFTING SOUTHWARD. MAXIMUM SUSTAINED WINDS...65 MPH. MINIMUM
CENTRAL PRESSURE...990 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 500 AM AST.