HURRICANE SANDY ADVISORY NUMBER 9
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012
1100 AM EDT WED OCT 24 2012
...SANDY REACHES HURRICANE STRENGTH......CONDITIONS DETERIORATING IN JAMAICA...
SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
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LOCATION...17.1N 76.7W
ABOUT 65 MI...100 KM S OF KINGSTON JAMAICA
ABOUT 235 MI...380 KM SSW OF GUANTANAMO CUBA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES
WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY...
THE GOVERNMENT OF THE BAHMAS HAS ISSUED A HURRICANE WATCH FOR THE CENTRAL AND NORTHWESTERN BAHAMAS.
THE TROPICAL STORM WATCH ALONG THE EAST COAST OF FLORIDA HAS BEENEXTENDED NORTHWARD TO THE VOLUSIA/BREVARD COUNTY LINE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* JAMAICA
* CUBAN PROVINCES OF CAMAGUEY...LAS TUNAS...GRANMA...SANTIAGO DE CUBA...HOLGUIN...AND GUANTANAMO
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* HAITI
* THE CENTRAL BAHAMAS
* THE NORTHWESTERN BAHAMAS
A HURRICANE WATCH IS IN EFFECT FOR...
* THE CENTRAL BAHAMAS
* THE NORTHWESTERN BAHAMAS
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* THE SOUTHEASTERN BAHAMAS
* FLORIDA EAST COAST FROM THE VOLUSIA/BREVARD COUNTY LINE TO OCEAN REEF
* FLORIDA UPPER KEYS FROM OCEAN REEF TO CRAIG KEY
* FLORIDA BAY
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.
TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 TO 36 HOURS.
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA....IN THIS CASE WITHIN 36 TO 48 HOURS.
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
DISCUSSION AND 48-HOUR OUTLOOK
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AT 1100 AM EDT...1500 UTC...THE CENTER OF HURRICANE SANDY WAS LOCATED NEAR LATITUDE 17.1 NORTH...LONGITUDE 76.7 WEST. SANDY IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 13 MPH...20 KM/H. A TURN TOWARD THE NORTH AND A SLIGHT INCREASE IN FORWARD SPEED ARE EXPECTED LATER TODAY...AND A GENERAL NORTHWARD MOTION IS EXPECTED TO
CONTINUE THROUGH FRIDAY. ON THE FORECAST TRACK...THE CENTER OF SANDY IS EXPECTED TO MOVE NEAR OR OVER EASTERN JAMAICA THIS AFTERNOON AND THIS EVENING...MOVE OVER EASTERN CUBA TONIGHT AND THURSDAY MORNING...AND APPROACH THE CENTRAL BAHAMAS ON THURSDAY.
DATA FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 80 MPH...130 KM/H...WITH HIGHER GUSTS. SANDY IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME ADDITIONAL STRENGTHENING IS LIKELY BEFORE SANDY MOVES OVER JAMAICA.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM.
THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON DATA FROM THE AIRCRAFT IS 973 MB...28.73 INCHES.
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