Update Hurricane Hanna

BULLETIN
HURRICANE HANNA INTERMEDIATE ADVISORY NUMBER 20A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082008
800 PM AST MON SEP 01 2008

…HANNA NEARLY STATIONARY…

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 THIS SYSTEM.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA…PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.

AT 800 PM AST…0000Z…THE CENTER OF HURRICANE HANNA WAS ESTIMATED
NEAR LATITUDE 22.1 NORTH…LONGITUDE 72.3 WEST…OR JUST NORTHWEST
OF THE CAICOS ISLANDS.

HANNA HAS MOVED LITTLE OVER THE PAST FEW HOURS…AND LITTLE OVERALL
MOTION IS EXPECTED OVER THE NEXT DAY OR SO. A NORTHWESTWARD MOTION
TOWARD THE CENTRAL BAHAMAS IS EXPECTED TO BEGIN BY WEDNESDAY.

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…TO
THE NORTHEAST OF THE CENTER…AND TROPICAL STORM FORCE WINDS EXTEND
OUTWARD UP TO 160 MILES…260 KM.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 980 MB…28.94 INCHES.

HANNA IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 4 TO 8 INCHES OVER
THE CENTRAL AND SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS
ISLANDS…WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 12 INCHES POSSIBLE
THROUGH THURSDAY. 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 800 PM AST POSITION…22.1 N…72.3 W. MOVEMENT
TOWARD…STATIONARY. MAXIMUM SUSTAINED WINDS…80 MPH. MINIMUM
CENTRAL PRESSURE…980 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
1100 PM AST.
FORECASTER FRANKLIN

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