Hurricane Igor

Forecast Advisory 11

---

000
WTNT21 KNHC 110233
TCMAT1
TROPICAL STORM IGOR FORECAST/ADVISORY NUMBER 11
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
0300 UTC SAT SEP 11 2010

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL STORM CENTER LOCATED NEAR 17.1N 34.9W AT 11/0300Z
POSITION ACCURATE WITHIN 40 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 18 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT....... 0NE 0SE 40SW 40NW.
12 FT SEAS.. 0NE 0SE 45SW 45NW.
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 34.9W AT 11/0300Z
AT 11/0000Z CENTER WAS LOCATED NEAR 17.0N 34.2W

FORECAST VALID 11/1200Z 17.2N 37.2W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 15NE 15SE 20SW 20NW.
34 KT... 30NE 30SE 45SW 50NW.

FORECAST VALID 12/0000Z 17.4N 40.1W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 25NE 20SE 15SW 25NW.
34 KT... 55NE 50SE 45SW 60NW.

FORECAST VALID 12/1200Z 17.5N 42.8W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 15NE 10SE 10SW 15NW.
50 KT... 30NE 30SE 20SW 30NW.
34 KT... 75NE 60SE 60SW 80NW.

FORECAST VALID 13/0000Z 17.6N 45.3W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT... 45NE 40SE 30SW 40NW.
34 KT...100NE 70SE 70SW 100NW.

FORECAST VALID 14/0000Z 18.0N 49.5W
MAX WIND 85 KT...GUSTS 105 KT.
50 KT... 55NE 40SE 35SW 50NW.
34 KT...110NE 80SE 70SW 110NW.

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 15/0000Z 19.0N 53.0W
MAX WIND 90 KT...GUSTS 110 KT.

OUTLOOK VALID 16/0000Z 20.5N 56.0W
MAX WIND 100 KT...GUSTS 120 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.1N 34.9W

NEXT ADVISORY AT 11/0900Z

$$
FORECASTER KIMBERLAIN/MUSHER