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HURRICANE DEBBY FORECAST/ADVISORY NUMBER  11
NATIONAL WEATHER SERVICE MIAMI FL   AL0700
0900Z TUE AUG 22 2000

...CORRECT 50 KT WIND RADII AT 48 AND 72 HR... 

AT 5 AM AST...A HURRICANE WARNING IS IN EFFECT FOR THE NORTH COAST
OF THE DOMINICAN REPUBLIC.  THE GOVERNMENT OF THE BAHAMAS HAS
CHANGED THE TROPICAL STORM WATCH TO A HURRICANE WATCH FOR THE
SOUTHEASTERN BAHAMAS.
 
HURRICANE WARNINGS REMAIN IN EFFECT FOR THE LEEWARD ISLANDS FROM
GUADELOUPE NORTH AND NORTHWESTWARD THROUGH THE BRITISH AND THE U.S.
VIRGIN ISLANDS AND PUERTO RICO AND ITS SURROUNDING ISLANDS.
 
A HURRICANE WATCH REMAINS IN EFFECT FOR NORTHERN HAITI NORTH OF PORT
AU PRINCE.
 
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR DOMINICA.
 
HURRICANE CENTER LOCATED NEAR 17.7N  62.6W AT 22/0900Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 18 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  994 MB
MAX SUSTAINED WINDS  65 KT WITH GUSTS TO  80 KT.
64 KT....... 20NE   0SE   0SW  20NW.
50 KT.......120NE   0SE   0SW 100NW.
34 KT.......150NE  25SE  25SW 120NW.
12 FT SEAS..250NE 150SE 100SW 150NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 17.7N  62.6W AT 22/0900Z
AT 22/0600Z CENTER WAS LOCATED NEAR 17.5N  61.7W
 
FORECAST VALID 22/1800Z 18.5N  65.3W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 60NE   0SE   0SW  60NW.
50 KT...120NE  25SE  25SW 120NW.
34 KT...150NE  50SE  50SW 150NW.
 
FORECAST VALID 23/0600Z 19.4N  68.7W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 60NE  40SE  40SW  60NW.
50 KT...100NE  60SE  60SW 100NW.
34 KT...125NE  75SE  75SW 125NW.
 
FORECAST VALID 23/1800Z 20.4N  71.9W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 60NE  40SE  40SW  60NW.
50 KT...100NE  60SE  60SW 100NW.
34 KT...125NE  75SE  75SW 125NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.7N  62.6W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 24/0600Z 21.5N  74.5W
MAX WIND  80 KT...GUSTS  95 KT.
50 KT...100NE  60SE  60SW 100NW.
 
OUTLOOK VALID 25/0600Z 23.5N  78.5W
MAX WIND  85 KT...GUSTS 105 KT.
50 KT...100NE  60SE  60SW 100NW.
 
NEXT ADVISORY AT 22/1500Z
 
FORECASTER BEVEN
 
 
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