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TROPICAL STORM DEBBY FORECAST/ADVISORY NUMBER   7
NATIONAL WEATHER SERVICE MIAMI FL   AL0700
0900Z MON AUG 21 2000
 
AT 5 AM AST...0900Z...A HURRICANE WATCH IS IN EFFECT FOR PUERTO
RICO.
 
A HURRICANE WATCH IS NOW IN EFFECT FOR SABA...ST EUSTATIUS...ST
MAARTEN...PUERTO RICO...AND THE U.S. VIRGIN ISLANDS.  A TROPICAL
STORM WATCH IS IN EFFECT FOR THE REMAINDER OF THE LEEWARD ISLANDS
NORTH OF DOMINICA.  WARNINGS WILL LIKELY BE REQUIRED FOR PORTIONS OF
THE LEEWARD ISLANDS LATER TODAY.
 
TROPICAL STORM CENTER LOCATED NEAR 15.6N  54.7W AT 21/0900Z
POSITION ACCURATE WITHIN  60 NM
 
PRESENT MOVEMENT TOWARD THE WEST NORTHWEST OR 285 DEGREES AT 16 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT.......125NE  75SE  50SW 125NW.
12 FT SEAS..150NE  75SE  50SW 125NW.
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 15.6N  54.7W AT 21/0900Z
AT 21/0600Z CENTER WAS LOCATED NEAR 15.4N  53.9W
 
FORECAST VALID 21/1800Z 16.1N  57.1W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 50NE  25SE  25SW  25NW.
34 KT...125NE  75SE  50SW 125NW.
 
FORECAST VALID 22/0600Z 16.9N  60.4W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 50NE  25SE  25SW  50NW.
34 KT...125NE  75SE  75SW 125NW.
 
FORECAST VALID 22/1800Z 17.7N  63.6W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 25NE  25SE  25SW  25NW.
50 KT... 50NE  30SE  30SW  50NW.
34 KT...125NE  75SE  75SW 125NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.6N  54.7W
 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE
 
OUTLOOK VALID 23/0600Z 18.5N  66.5W
MAX WIND  70 KT...GUSTS  85 KT.
50 KT... 50NE  30SE  30SW  50NW.
 
OUTLOOK VALID 24/0600Z 20.5N  72.0W
MAX WIND  80 KT...GUSTS  95 KT.
50 KT... 50NE  30SE  30SW  50NW.
 
NEXT ADVISORY AT 21/1500Z
 
FORECASTER BEVEN
 
 
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