jeudi 25 octobre 2012

OURAGAN SANDY - mise à jour de la NOAA

HURRICANE SANDY INTERMEDIATE ADVISORY NUMBER 12A


NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012

800 AM EDT THU OCT 25 2012 ...SANDY MOVING BETWEEN THE NORTHEAST COAST OF CUBA AND THE CENTRAL BAHAMAS...


SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION

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LOCATION...21.6N 75.5W

ABOUT 130 MI...215 KM S OF GREAT EXUMA IN THE CENTRAL BAHAMAS

ABOUT 75 MI...125 KM NE OF HOLGUIN CUBA

MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H

PRESENT MOVEMENT...N OR 10 DEGREES AT 18 MPH...30 KM/H

MINIMUM CENTRAL PRESSURE...967 MB...28.55 INCHES



SUMMARY OF WATCHES AND WARNINGS IN EFFECT...



A HURRICANE WARNING IS IN EFFECT FOR...

* CUBAN PROVINCES OF CAMAGUEY GRANMA...SANTIAGO DE

CUBA...HOLGUIN...AND GUANTANAMO

* THE RAGGED ISLANDS IN THE SOUTHEASTERN BAHAMAS

* THE CENTRAL BAHAMAS

* THE NORTHWESTERN BAHAMAS



A TROPICAL STORM WARNING IS IN EFFECT FOR...

* HAITI

* 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.




DISCUSSION AND 48-HOUR OUTLOOK

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AT 800 AM EDT...1200 UTC...THE CENTER OF HURRICANE SANDY WAS LOCATED  BY AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT NEAR LATITUDE

21.6 NORTH...LONGITUDE 75.5 WEST.

SANDY IS MOVING TOWARD THE NORTH  NEAR 18 MPH...30 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE TODAY. A TURN TOWARD THE NORTH-NORTHWEST AND A DECREASE IN FORWARD SPEED ARE EXPECTED TONIGHT AND FRIDAY.

ON THE FORECAST TRACK...THE CENTER OF SANDY WILL MOVE NEAR OR OVER THE CENTRAL BAHAMAS LATER TODAY AND TONIGHT...AND MOVE NEAR OR OVER THE NORTHWESTERN BAHAMAS ON FRIDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/H...WITH HIGHER GUSTS.

SANDY IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.

GRADUAL WEAKENING IS FORECAST OVER THE NEXT 48 HOURS. HOWEVER...SANDY IS EXPECTED TO REMAIN A HURRICANE AS IT
MOVES THROUGH THE BAHAMAS.

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.

GUANTANAMO BAY CUBA RECENTLY REPORTED A SUSTAINED
WIND OF 39 MPH...63 KM/H...AND A GUST OF 51 MPH...81 KM/H.

THE MINIMUM CENTRAL PRESSURE BASED ON AIRCRAFT DATA IS 967 MB... 28.55 INCHES.





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