Post by NHC Olney Maryland on Sept 2, 2008 13:04:40 GMT -5
BULLETIN
HURRICANE HANNA INTERMEDIATE ADVISORY NUMBER 21A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
200 AM AST TUE SEP 02 2008
...HANNA MOVING SOUTH-SOUTHWESTWARD ACROSS THE TURKS AND CAICOS
ISLANDS......
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
INTERESTS IN EASTERN CUBA...THE NORTHWEST 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 200 AM AST...0600Z...THE CENTER OF HURRICANE HANNA WAS LOCATED
NEAR LATITUDE 21.3 NORTH...LONGITUDE 72.6 WEST OR ABOUT 50 MILES...
85 KM...EAST-NORTHEAST OF GREAT INAGUA ISLAND AND ABOUT 400 MILES...
645 KM...SOUTHEAST OF NASSAU.
HANNA HAS MOVED SOUTH-SOUTHWESTWARD AT 8 MPH...13 KM/HR. A GRADUAL
DECREASE IN FORWARD SPEED IS EXPECTED LATER TODAY...POSSIBLY
ACCOMPANIED BY A LOOPING MOTION. BY WEDNESDAY...A SLOW
NORTHWESTWARD MOTION TOWARD THE CENTRAL BAHAMAS IS EXPECTED BEGIN.
MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER
GUSTS. HANNA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24
HOURS.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 978 MB...28.88 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 8 TO 12 INCHES...
WITH ISOLATED AMOUNTS OF 20 INCHES...OVER THE SOUTHEASTERN BAHAMAS
AND THE TURKS AND CAICOS ISLANDS. AMOUNTS OF 4 TO 8 INCHES...WITH
ISOLATED MAXIMUM AMOUNTS OF UP TO 12 INCHES...ARE EXPECTED IN THE
CENTRAL BAHAMAS. RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH MAXIMUM
AMOUNTS OF UP TO 8 INCHES ARE EXPECTED OVER THE MOUNTAINOUS TERRAIN
OF EASTERN CUBA AND NORTHERN PORTIONS OF 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 200 AM AST POSITION...21.3 N...72.6 W. MOVEMENT...
SOUTH-SOUTHWEST AT 8 MPH. MAXIMUM SUSTAINED WINDS...80 MPH.
MINIMUM CENTRAL PRESSURE...978 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 500 AM AST.
HURRICANE HANNA INTERMEDIATE ADVISORY NUMBER 21A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL082008
200 AM AST TUE SEP 02 2008
...HANNA MOVING SOUTH-SOUTHWESTWARD ACROSS THE TURKS AND CAICOS
ISLANDS......
A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE
SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS.
INTERESTS IN EASTERN CUBA...THE NORTHWEST 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 200 AM AST...0600Z...THE CENTER OF HURRICANE HANNA WAS LOCATED
NEAR LATITUDE 21.3 NORTH...LONGITUDE 72.6 WEST OR ABOUT 50 MILES...
85 KM...EAST-NORTHEAST OF GREAT INAGUA ISLAND AND ABOUT 400 MILES...
645 KM...SOUTHEAST OF NASSAU.
HANNA HAS MOVED SOUTH-SOUTHWESTWARD AT 8 MPH...13 KM/HR. A GRADUAL
DECREASE IN FORWARD SPEED IS EXPECTED LATER TODAY...POSSIBLY
ACCOMPANIED BY A LOOPING MOTION. BY WEDNESDAY...A SLOW
NORTHWESTWARD MOTION TOWARD THE CENTRAL BAHAMAS IS EXPECTED BEGIN.
MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER
GUSTS. HANNA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24
HOURS.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 978 MB...28.88 INCHES.
HANNA IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 8 TO 12 INCHES...
WITH ISOLATED AMOUNTS OF 20 INCHES...OVER THE SOUTHEASTERN BAHAMAS
AND THE TURKS AND CAICOS ISLANDS. AMOUNTS OF 4 TO 8 INCHES...WITH
ISOLATED MAXIMUM AMOUNTS OF UP TO 12 INCHES...ARE EXPECTED IN THE
CENTRAL BAHAMAS. RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH MAXIMUM
AMOUNTS OF UP TO 8 INCHES ARE EXPECTED OVER THE MOUNTAINOUS TERRAIN
OF EASTERN CUBA AND NORTHERN PORTIONS OF 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 200 AM AST POSITION...21.3 N...72.6 W. MOVEMENT...
SOUTH-SOUTHWEST AT 8 MPH. MAXIMUM SUSTAINED WINDS...80 MPH.
MINIMUM CENTRAL PRESSURE...978 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 500 AM AST.