Tropical Storm Gamma

Forecast Advisory 18

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000
WTNT22 KNHC 200818
TCMAT2
TROPICAL STORM GAMMA FORECAST/ADVISORY NUMBER 18
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL272005
0900Z SUN NOV 20 2005

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE BAY ISLANDS OF
HONDURAS. THIS WARNING MAY BE DISCONTINUED LATER TODAY.

INTERESTS ELSEWHERE IN THE NORTHWESTERN CARIBBEAN SEA SHOULD MONITOR
THE PROGRESS OF GAMMA.

TROPICAL STORM CENTER LOCATED NEAR 16.7N 85.0W AT 20/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT 2 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT....... 90NE 0SE 0SW 0NW.
12 FT SEAS..120NE 30SE 30SW 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 16.7N 85.0W AT 20/0900Z
AT 20/0600Z CENTER WAS LOCATED NEAR 16.6N 85.0W

FORECAST VALID 20/1800Z 17.1N 85.3W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 90NE 0SE 0SW 0NW.

FORECAST VALID 21/0600Z 17.5N 85.0W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 21/1800Z 17.9N 84.0W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 22/0600Z 18.0N 82.2W...DISSIPATING
MAX WIND 25 KT...GUSTS 35 KT.

FORECAST VALID 23/0600Z 17.5N 78.0W...DISSIPATING
MAX WIND 25 KT...GUSTS 35 KT.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 325 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 24/0600Z...ABSORBED BY FRONTAL SYSTEM

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.7N 85.0W

NEXT ADVISORY AT 20/1500Z

FORECASTER STEWART


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