Hurricane Katia

Forecast Advisory 4

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000
WTNT22 KNHC 300239
TCMAT2

TROPICAL DEPRESSION TWELVE FORECAST/ADVISORY NUMBER 4
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
0300 UTC TUE AUG 30 2011

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 11.0N 30.0W AT 30/0300Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 13 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 45 KT.
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 11.0N 30.0W AT 30/0300Z
AT 30/0000Z CENTER WAS LOCATED NEAR 10.8N 29.4W

FORECAST VALID 30/1200Z 11.8N 32.0W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 0SE 40SW 40NW.

FORECAST VALID 31/0000Z 12.8N 34.7W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 45NE 30SE 15SW 45NW.

FORECAST VALID 31/1200Z 13.9N 37.8W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 20NE 0SE 0SW 20NW.
34 KT... 60NE 40SE 30SW 60NW.

FORECAST VALID 01/0000Z 14.8N 41.5W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 30NE 20SE 0SW 30NW.
34 KT... 75NE 50SE 40SW 75NW.

FORECAST VALID 02/0000Z 16.4N 47.5W
MAX WIND 70 KT...GUSTS 85 KT.
50 KT... 45NE 30SE 20SW 45NW.
34 KT...100NE 75SE 60SW 90NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 03/0000Z 18.3N 52.9W
MAX WIND 80 KT...GUSTS 100 KT.

OUTLOOK VALID 04/0000Z 20.0N 57.0W
MAX WIND 90 KT...GUSTS 110 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.0N 30.0W

NEXT ADVISORY AT 30/0900Z

$$
FORECASTER STEWART