Tropical Storm ISIS

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TROPICAL STORM ISIS FORECAST/ADVISORY NUMBER  20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP122004
0300Z MON SEP 13 2004
 
TROPICAL STORM CENTER LOCATED NEAR 17.4N 125.1W AT 13/0300Z
POSITION ACCURATE WITHIN  50 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT  10 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 30NE  40SE  40SW  60NW.
12 FT SEAS.. 60NE  60SE  60SW  60NW.
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 17.4N 125.1W AT 13/0300Z
AT 13/0000Z CENTER WAS LOCATED NEAR 17.4N 124.6W
 
FORECAST VALID 13/1200Z 17.4N 126.5W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 30NE  40SE  40SW  60NW.
 
FORECAST VALID 14/0000Z 17.4N 128.4W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  20SE  20SW  20NW.
34 KT... 50NE  50SE  50SW  70NW.
 
FORECAST VALID 14/1200Z 17.5N 129.9W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  20SE  20SW  20NW.
34 KT... 50NE  50SE  50SW  70NW.
 
FORECAST VALID 15/0000Z 17.6N 131.2W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  30SE  30SW  30NW.
34 KT... 70NE  60SE  60SW  80NW.
 
FORECAST VALID 16/0000Z 17.7N 132.7W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  30SE  30SW  30NW.
34 KT... 70NE  60SE  60SW  80NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 200 NM
ON DAY 4 AND 250 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 17/0000Z 17.9N 133.5W
MAX WIND  55 KT...GUSTS  65 KT.
 
OUTLOOK VALID 18/0000Z 18.1N 134.2W
MAX WIND  55 KT...GUSTS  65 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.4N 125.1W
 
NEXT ADVISORY AT 13/0900Z
 
FORECASTER JARVINEN/HENNON
 
 
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