Hurricane Sandy

Public Advisory 13A



862
WTNT33 KNHC 251747
TCPAT3

BULLETIN
HURRICANE SANDY INTERMEDIATE ADVISORY NUMBER 13A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012
200 PM EDT THU OCT 25 2012

...CENTER OF SANDY MOVING BETWEEN LONG ISLAND AND GREAT EXUMA...


SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...23.5N 75.4W
ABOUT 25 MI...40 KM E OF GREAT EXUMA ISLAND
ABOUT 125 MI...200 KM SE OF ELEUTHERA
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H
PRESENT MOVEMENT...N OR 5 DEGREES AT 20 MPH...32 KM/H
MINIMUM CENTRAL PRESSURE...963 MB...28.44 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* THE RAGGED ISLANDS IN THE SOUTHEASTERN BAHAMAS
* THE CENTRAL BAHAMAS
* THE NORTHWESTERN BAHAMAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* FLORIDA EAST COAST FROM OCEAN REEF TO FLAGLER BEACH
* LAKE OKEECHOBEE
* THE REMAINDER OF THE SOUTHEASTERN BAHAMAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* FLORIDA EAST COAST FROM NORTH OF FLAGLER BEACH TO FERNANDINA BEACH
* FLORIDA UPPER KEYS FROM OCEAN REEF TO CRAIG KEY
* FLORIDA BAY

INTERESTS ELSEWHERE ALONG THE EAST COAST OF THE UNITED STATES SHOULD
MONITOR THE PROGRESS OF SANDY.

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA. PREPARATIONS TO PROTECT LIFE AND
PROPERTY SHOULD BE RUSHED TO COMPLETION.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM EDT...1800 UTC...THE CENTER OF HURRICANE SANDY WAS
LOCATED NEAR LATITUDE 23.5 NORTH...LONGITUDE 75.4 WEST. SANDY IS
MOVING TOWARD THE NORTH NEAR 20 MPH...32 KM/H...AND THIS MOTION IS
EXPECTED TO CONTINUE TODAY. A TURN TOWARD THE NORTH-NORTHWEST AND A
DECREASE IN FORWARD SPEED ARE EXPECTED TONIGHT. ON THE FORECAST
TRACK...THE CENTER OF SANDY WILL CONTINUE MOVING THROUGH THE CENTRAL
BAHAMAS TODAY AND TONIGHT AND MOVE NEAR THE NORTHWESTERN BAHAMAS ON
FRIDAY.

MAXIMUM SUSTAINED WINDS REMAIN NEAR 105 MPH...165 KM/H...WITH HIGHER
GUSTS. SANDY IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME WEAKENING IS FORECAST DURING THE NEXT 48
HOURS...BUT SANDY IS EXPECTED TO REMAIN A HURRICANE AS IT MOVES
THROUGH THE BAHAMAS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205
MILES...335 KM. ELEUTHERA IN THE BAHAMAS RECENTLY REPORTED A
SUSTAINED WIND OF 39 MPH...63 KM/H.

THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE RESERVE
HURRICANE HUNTER AIRCRAFT IS 963 MB...28.44 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...HURRICANE CONDITIONS WILL CONTINUE SPREADING ACROSS THE
CENTRAL THIS AFTERNOON...AND ARE EXPECTED TO REACH THE NORTHWESTERN
BAHAMAS TONIGHT AND FRIDAY. TROPICAL STORM CONDITIONS ARE EXPECTED
TO REACH THE WARNING AREA ALONG THE EAST COAST OF FLORIDA LATER
TODAY AND SPREAD NORTHWARD THROUGH FRIDAY. TROPICAL STORM
CONDITIONS ARE POSSIBLE IN THE WATCH AREA FRIDAY NIGHT. WINDS WILL
GRADUALLY SUBSIDE OVER EASTERN CUBA THIS AFTERNOON.

RAINFALL...SANDY IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
6 TO 12 INCHES ACROSS HAITI AND THE DOMINICAN REPUBLIC...WITH
ISOLATED MAXIMUM AMOUNTS OF 20 INCHES POSSIBLE. THESE RAINS MAY
PRODUCE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES...ESPECIALLY
IN AREAS OF MOUNTAINOUS TERRAIN. RAINFALL TOTALS OF 3 TO 6 INCHES
ARE EXPECTED OVER PORTIONS OF THE BAHAMAS...WITH ISOLATED MAXIMUM
AMOUNTS OF 12 INCHES POSSIBLE. RAINFALL TOTALS OF 1 TO 3 INCHES ARE
POSSIBLE ACROSS THE FLORIDA KEYS INTO SOUTHEAST AND EAST-CENTRAL
FLORIDA.

STORM SURGE...THE COMBINATION OF A DANGEROUS STORM SURGE AND THE
TIDE WILL CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY
RISING WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE
GROUND IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

HURRICANE WARNING AREA IN THE BAHAMAS...5 TO 8 FT
FLORIDA COAST WITHIN WARNING AREA...1 TO 2 FT

SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE
AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER SHORT DISTANCES.
FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.

WATER LEVELS WILL BEGIN TO SUBSIDE IN CUBA AND JAMAICA THIS
AFTERNOON.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM EDT.

$$
FORECASTER BRENNAN