Hurricane Igor

Forecast Advisory 4

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000
WTNT21 KNHC 090836
TCMAT1
TROPICAL STORM IGOR FORECAST/ADVISORY NUMBER 4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
0900 UTC THU SEP 09 2010

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* THE SOUTHERN CAPE VERDE ISLANDS...INCLUDING MAIO...SAO TIAGO...
FOGO...AND BRAVA.

THE TROPICAL STORM WATCH WILL LIKELY BE DISCONTINUED LATER TODAY.

TROPICAL STORM CENTER LOCATED NEAR 13.8N 24.3W AT 09/0900Z
POSITION ACCURATE WITHIN 50 NM

PRESENT MOVEMENT IS STATIONARY

ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT....... 0NE 45SE 45SW 30NW.
12 FT SEAS.. 30NE 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 13.8N 24.3W AT 09/0900Z
AT 09/0600Z CENTER WAS LOCATED NEAR 13.8N 24.3W

FORECAST VALID 09/1800Z 14.0N 25.3W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 10/0600Z 15.0N 28.0W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 30NE 45SE 45SW 30NW.

FORECAST VALID 10/1800Z 16.0N 31.0W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 45NE 45SE 30SW 45NW.

FORECAST VALID 11/0600Z 16.5N 34.0W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 25NE 25SE 10SW 25NW.
34 KT... 75NE 60SE 45SW 60NW.

FORECAST VALID 12/0600Z 17.0N 40.0W
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 30NE 30SE 25SW 30NW.
34 KT... 75NE 60SE 45SW 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 13/0600Z 18.0N 44.5W
MAX WIND 75 KT...GUSTS 90 KT.

OUTLOOK VALID 14/0600Z 19.5N 49.0W
MAX WIND 85 KT...GUSTS 105 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.8N 24.3W

NEXT ADVISORY AT 09/1500Z

$$
FORECASTER AVILA