Tropical Storm IRWIN

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TROPICAL STORM IRWIN FORECAST/ADVISORY NUMBER   4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP092005
1500Z FRI AUG 26 2005
 
TROPICAL STORM CENTER LOCATED NEAR 17.8N 109.2W AT 26/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  10 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 40NE  60SE  60SW  40NW.
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 17.8N 109.2W AT 26/1500Z
AT 26/1200Z CENTER WAS LOCATED NEAR 17.7N 108.7W
 
FORECAST VALID 27/0000Z 18.0N 110.7W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 40NE  60SE  60SW  40NW.
 
FORECAST VALID 27/1200Z 18.1N 112.6W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 15NE  15SE  15SW  15NW.
34 KT... 60NE  60SE  60SW  60NW.
 
FORECAST VALID 28/0000Z 18.3N 114.6W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 15NE  15SE  15SW  15NW.
34 KT... 60NE  60SE  60SW  60NW.
 
FORECAST VALID 28/1200Z 18.3N 116.4W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 15NE  15SE  15SW  15NW.
34 KT... 60NE  60SE  60SW  60NW.
 
FORECAST VALID 29/1200Z 18.2N 120.1W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 10NE  10SE  10SW  10NW.
34 KT... 60NE  60SE  60SW  60NW.
 
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 30/1200Z 18.0N 123.5W
MAX WIND  40 KT...GUSTS  50 KT.
 
OUTLOOK VALID 31/1200Z 17.5N 126.5W...DISSIPATING
MAX WIND  30 KT...GUSTS  40 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.8N 109.2W
 
NEXT ADVISORY AT 26/2100Z
 
FORECASTER SISKO/STEWART
 
 
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