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WTNT34 KNHC 120556
TCPAT4
BULLETIN
HURRICANE IVAN INTERMEDIATE ADVISORY NUMBER  39A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2 AM EDT SUN SEP 12 2004

...CATEGORY FIVE HURRICANE IVAN HEADING FOR THE CAYMAN ISLANDS AND
WESTERN CUBA...

A HURRICANE WARNING REMAINS IN EFFECT FOR THE CAYMAN ISLANDS.

A HURRICANE WARNING REMAINS IN EFFECT FOR CUBA FROM PINAR DEL RIO TO
CIEGO DE AVILA INCLUDING THE ISLE OF YOUTH.  A HURRICANE WARNING
MEANS THAT HURRICANE CONDITIONS ARE EXPECTED WITHIN THE WARNING
AREA WITHIN THE NEXT 24 HOURS.  PREPARATIONS TO PROTECT LIFE AND
PROPERTY SHOULD BE RUSHED TO COMPLETION.

A HURRICANE WATCH REMAINS IN EFFECT FOR THE REST OF CUBA. A
HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS.

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR JAMAICA.

INTERESTS IN THE NORTHWESTERN CARIBBEAN SEA...AS WELL AS IN THE
EASTERN GULF OF MEXICO...SHOULD CLOSELY MONITOR THE PROGRESS OF
THIS EXTREMELY DANGEROUS HURRICANE.

AT 2 AM EDT...0600Z...THE WELL-DEFINED EYE OF HURRICANE IVAN WAS
LOCATED NEAR LATITUDE 18.4 NORTH... LONGITUDE 80.4 WEST OR ABOUT
90 MILES... 145 KM... SOUTHEAST OF GRAND CAYMAN.

IVAN IS MOVING TOWARD THE WEST-NORTHWEST NEAR  8 MPH...13
KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE
NEXT 24 HOURS.  ON THIS TRACK...THE CENTER WILL MOVE OVER OR NEAR
THE CAYMAN ISLANDS LATER THIS MORNING.

MAXIMUM SUSTAINED WINDS ARE NEAR 165 MPH...270 KM/HR...WITH HIGHER
GUSTS.  IVAN IS AN EXTREMELY DANGEROUS CATEGORY FIVE HURRICANE ON
THE SAFFIR-SIMPSON HURRICANE SCALE. SOME FLUCTUATIONS IN INTENSITY
ARE LIKELY 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.

AN AIR FORCE RESERVE UNIT HURRICANE HUNTER AIRCRAFT MEASURED A
MINIMUM CENTRAL PRESSURE OF 910 MB...26.87 INCHES.  THIS IS THE
SIXTH LOWEST CENTRAL PRESSURE ON RECORD FOR A HURRICANE IN THE
ATLANTIC BASIN.

STORM SURGE FLOODING OF 5 TO 8 FEET ABOVE NORMAL TIDE LEVELS...ALONG
WITH LARGE AND DANGEROUS BATTERING WAVES... CAN BE EXPECTED IN
PORTIONS OF THE CAYMAN ISLANDS...DEPENDING ON THE EXACT TRACK OF
IVAN.  COASTAL STORM SURGE FLOODING OF 20 TO 25 FEET...LOCALLY
HIGHER...ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS
BATTERING WAVES...CAN BE EXPECTED NEAR AND TO THE EAST OF WHERE THE
CENTER MAKES LANDFALL IN CUBA.

RAINFALL AMOUNTS OF 8 TO 12 INCHES...POSSIBLY CAUSING LIFE-
THREATENING FLASH FLOODS AND MUD SLIDES...CAN BE EXPECTED ALONG THE
PATH OF IVAN.

REPEATING THE 2 AM EDT POSITION...18.4 N... 80.4 W.  MOVEMENT
TOWARD...WEST-NORTHWEST NEAR  8 MPH.  MAXIMUM SUSTAINED
WINDS...165 MPH.  MINIMUM CENTRAL PRESSURE... 910 MB.

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

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 5 AM EDT.

FORECASTER LAWRENCE


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