000
WTNT21 KNHC 121806
TCMAT1
HURRICANE IGOR SPECIAL FORECAST/ADVISORY NUMBER  18
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL112010
1830 UTC SUN SEP 12 2010
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
HURRICANE CENTER LOCATED NEAR 17.7N  46.1W AT 12/1830Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT  12 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  950 MB
EYE DIAMETER  20 NM
MAX SUSTAINED WINDS 115 KT WITH GUSTS TO 140 KT.
64 KT....... 35NE  30SE  30SW  35NW.
50 KT....... 70NE  55SE  45SW  60NW.
34 KT.......140NE 110SE  90SW 130NW.
12 FT SEAS..240NE  60SE  60SW 120NW.
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  46.1W AT 12/1830Z
AT 12/1200Z CENTER WAS LOCATED NEAR 17.7N  44.9W
 
FORECAST VALID 13/0000Z 17.8N  47.5W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 40NE  35SE  35SW  40NW.
50 KT...100NE  80SE  70SW  80NW.
34 KT...180NE 150SE 120SW 150NW.
 
FORECAST VALID 13/1200Z 18.0N  49.8W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 40NE  35SE  35SW  40NW.
50 KT...100NE  80SE  70SW  80NW.
34 KT...180NE 150SE 120SW 150NW.
 
FORECAST VALID 14/0000Z 18.4N  51.8W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 40NE  35SE  35SW  40NW.
50 KT...100NE  80SE  70SW  80NW.
34 KT...180NE 150SE 120SW 150NW.
 
FORECAST VALID 14/1200Z 19.0N  53.6W
MAX WIND 130 KT...GUSTS 160 KT.
50 KT...110NE  90SE  80SW  80NW.
34 KT...190NE 160SE 130SW 160NW.
 
FORECAST VALID 15/1200Z 20.7N  56.7W
MAX WIND 130 KT...GUSTS 160 KT.
50 KT...110NE  90SE  80SW  80NW.
34 KT...190NE 160SE 130SW 160NW.
 
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 16/1200Z 22.6N  59.6W
MAX WIND 125 KT...GUSTS 155 KT.
 
OUTLOOK VALID 17/1200Z 24.5N  62.5W
MAX WIND 125 KT...GUSTS 155 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.7N  46.1W
 
NEXT ADVISORY AT 12/2100Z
 
$$
FORECASTER ROBERTS/BRENNAN