Post by NHC Olney Maryland on Sept 2, 2008 13:09:07 GMT -5
BULLETIN
TROPICAL STORM HANNA ADVISORY NUMBER 23
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
1100 AM AST TUE SEP 02 2008
...HANNA PRODUCING HEAVY RAINS OVER THE SOUTHEASTERN BAHAMAS AND
HISPANIOLA...
AT 11 AM AST...1500 UTC...A TROPICAL STORM WARNING HAS BEEN ISSUED
FOR THE NORTHERN COAST OF HAITI FROM LE MOLE ST NICHOLAS EASTWARD
TO THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC. A TROPICAL
STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
INTERESTS IN EASTERN CUBA...THE NORTHWESTERN BAHAMAS...AND THE
FLORIDA PENINSULA 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 1100 AM AST...1500Z...THE CENTER OF TROPICAL STORM HANNA WAS
LOCATED NEAR LATITUDE 21.0 NORTH...LONGITUDE 73.5 WEST OR ABOUT 20
MILES... 35 KM...WEST-SOUTHWEST OF GREAT INAGUA ISLAND AND ABOUT 370
MILES...600 KM...SOUTHEAST OF NASSAU.
HANNA IS MOVING TOWARD THE WEST-SOUTHWEST NEAR 6 MPH...9 KM/HR. A
TURN TOWARD THE NORTHWEST IS EXPECTED TONIGHT AND WEDNESDAY WITH AN
INCREASE IN FORWARD SPEED. ON THE FORECAST TRACK...HANNA WILL MOVE
OVER THE SOUTHEASTERN BAHAMAS TODAY AND INTO THE CENTRAL BAHAMAS
TONIGHT AND WEDNESDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24
HOURS. AN AIR FORCE RECONNAISSANCE AIRCRAFT WILL INVESTIGATE HANNA
THIS AFTERNOON. SOME STRENGTHENING IS POSSIBLE ON WEDNESDAY NIGHT
AND THURSDAY.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES...
WITH 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 20
INCHES...ARE POSSIBLE OVER HISPANIOLA WHERE THESE RAINS COULD CAUSE
LIFE-THREATENING MUDSLIDES AND FLASH FLOODING.
COASTAL STORM SURGE FLOODING OF 3 TO 5 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 1100 AM AST POSITION...21.0 N...73.5 W. MOVEMENT
TOWARD...WEST-SOUTHWEST NEAR 6 MPH. MAXIMUM SUSTAINED WINDS...70
MPH. MINIMUM CENTRAL PRESSURE...987 MB.
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 200 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500
PM AST.
TROPICAL STORM HANNA ADVISORY NUMBER 23
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
1100 AM AST TUE SEP 02 2008
...HANNA PRODUCING HEAVY RAINS OVER THE SOUTHEASTERN BAHAMAS AND
HISPANIOLA...
AT 11 AM AST...1500 UTC...A TROPICAL STORM WARNING HAS BEEN ISSUED
FOR THE NORTHERN COAST OF HAITI FROM LE MOLE ST NICHOLAS EASTWARD
TO THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC. A TROPICAL
STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
INTERESTS IN EASTERN CUBA...THE NORTHWESTERN BAHAMAS...AND THE
FLORIDA PENINSULA 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 1100 AM AST...1500Z...THE CENTER OF TROPICAL STORM HANNA WAS
LOCATED NEAR LATITUDE 21.0 NORTH...LONGITUDE 73.5 WEST OR ABOUT 20
MILES... 35 KM...WEST-SOUTHWEST OF GREAT INAGUA ISLAND AND ABOUT 370
MILES...600 KM...SOUTHEAST OF NASSAU.
HANNA IS MOVING TOWARD THE WEST-SOUTHWEST NEAR 6 MPH...9 KM/HR. A
TURN TOWARD THE NORTHWEST IS EXPECTED TONIGHT AND WEDNESDAY WITH AN
INCREASE IN FORWARD SPEED. ON THE FORECAST TRACK...HANNA WILL MOVE
OVER THE SOUTHEASTERN BAHAMAS TODAY AND INTO THE CENTRAL BAHAMAS
TONIGHT AND WEDNESDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24
HOURS. AN AIR FORCE RECONNAISSANCE AIRCRAFT WILL INVESTIGATE HANNA
THIS AFTERNOON. SOME STRENGTHENING IS POSSIBLE ON WEDNESDAY NIGHT
AND THURSDAY.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES...
WITH 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 20
INCHES...ARE POSSIBLE OVER HISPANIOLA WHERE THESE RAINS COULD CAUSE
LIFE-THREATENING MUDSLIDES AND FLASH FLOODING.
COASTAL STORM SURGE FLOODING OF 3 TO 5 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 1100 AM AST POSITION...21.0 N...73.5 W. MOVEMENT
TOWARD...WEST-SOUTHWEST NEAR 6 MPH. MAXIMUM SUSTAINED WINDS...70
MPH. MINIMUM CENTRAL PRESSURE...987 MB.
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 200 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500
PM AST.