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HURRICANE ISIDORE INTERMEDIATE ADVISORY NUMBER  17A
NATIONAL WEATHER SERVICE MIAMI FL
8 AM EDT FRI SEP 20 2002

...ISIDORE STILL NEAR ISLE OF YOUTH AND HEADING FOR EXTREME WESTERN 
MAINLAND CUBA...

A HURRICANE WARNING REMAINS IN EFFECT FOR THE WESTERN CUBA PROVINCES
OF MATANZAS...CIUDAD DE LA HABANA...LA HABANA AND PINAR DEL RIO 
...INCLUDING THE ISLE OF YOUTH.
 
A TROPICAL STORM WATCH IS IN EFFECT FOR THE LOWER FLORIDA KEYS... 
WEST OF THE SEVEN MILE BRIDGE...AND THE DRY TORTUGAS.  A TROPICAL 
STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN 
THE WATCH AREA...GENERALLY WITHIN 36 HOURS.
 
AT 7 AM EDT...1100Z...THE TROPICAL STORM WARNING FOR THE CAYMAN 
ISLANDS IS DISCONTINUED.

A HURRICANE WATCH MAY BE REQUIRED FOR THE NORTHEASTERN PORTION OF 
THE YUCATAN PENINSULA LATER TODAY.

AT 8 AM EDT...1200Z...THE CENTER OF HURRICANE ISIDORE WAS LOCATED 
NEAR LATITUDE 21.5 NORTH...LONGITUDE  83.5 WEST.  THIS POSITION IS 
NEAR THE WESTERN TIP OF THE ISLE OF YOUTH AND ABOUT 100 MILES...
160 KM...SOUTH-SOUTHWEST OF HAVANA CUBA.
 
ISIDORE IS MOVING TOWARD THE NORTHWEST NEAR  8 MPH ...13 KM/HR...AND 
THIS MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS.  ON THIS 
TRACK THE CORE OF THE HURRICANE WILL MOVE OVER FAR WESTERN CUBA 
DURING THE NEXT 24 HOURS.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/HR...WITH HIGHER
GUSTS.  SOME ADDITIONAL STRENGTHENING IS FORECAST DURING THE NEXT
24 HOURS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  35 MILES... 55 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 145 MILES...230 KM.
 
THE MINIMUM CENTRAL PRESSURE REPORTED BY RECONNAISSANCE AIRCRAFT WAS 
966 MB...28.53 INCHES.

EXTREMELY HEAVY RAINFALL AMOUNTS...UP T0 20 TO 30 INCHES...CAN BE 
EXPECTED OVER PORTIONS OF WESTERN CUBA OVER THE NEXT TWO TO THREE 
DAYS.  

COASTAL STORM SURGE FLOODING OF 8 TO 10 FEET 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.

REPEATING THE 8 AM EDT POSITION...21.5 N... 83.5 W.  MOVEMENT
TOWARD...NORTHWEST NEAR  8 MPH.  MAXIMUM SUSTAINED
WINDS...105 MPH.  MINIMUM CENTRAL PRESSURE... 966 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 11 AM EDT.
 
FORECASTER LAWRENCE
 
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