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Tropical Storm MARTY


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TROPICAL STORM MARTY FORECAST/ADVISORY NUMBER   4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP132003
2100Z FRI SEP 19 2003
 
TROPICAL STORM CENTER LOCATED NEAR 17.1N 107.7W AT 19/2100Z
POSITION ACCURATE WITHIN  60 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT   6 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  998 MB
MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
34 KT.......100NE 100SE 100SW 100NW.
12 FT SEAS..200NE 125SE 125SW 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 17.1N 107.7W AT 19/2100Z
AT 19/1800Z CENTER WAS LOCATED NEAR 17.0N 107.5W
 
FORECAST VALID 20/0600Z 17.4N 108.6W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...100NE 100SE 100SW 100NW.
 
FORECAST VALID 20/1800Z 17.9N 109.9W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  40SE  40SW  40NW.
34 KT...100NE 100SE 100SW 100NW.
 
FORECAST VALID 21/0600Z 18.3N 111.3W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 20NE  20SE  20SW  20NW.
50 KT... 40NE  40SE  40SW  40NW.
34 KT...100NE 100SE 100SW 100NW.
 
FORECAST VALID 21/1800Z 19.0N 112.9W
MAX WIND  75 KT...GUSTS  90 KT.
50 KT... 40NE  40SE  40SW  40NW.
34 KT...100NE 100SE 100SW 100NW.
 
FORECAST VALID 22/1800Z 21.3N 116.6W
MAX WIND  75 KT...GUSTS  90 KT.
50 KT... 40NE  40SE  40SW  40NW.
34 KT...100NE 100SE 100SW 100NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 200 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 23/1800Z 23.5N 118.5W
MAX WIND  60 KT...GUSTS  75 KT.
 
OUTLOOK VALID 24/1800Z 26.0N 120.0W
MAX WIND  50 KT...GUSTS  60 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.1N 107.7W
 
NEXT ADVISORY AT 20/0300Z
 
FORECASTER LAWRENCE
 
 
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