Hurricane Isaac

Forecast Advisory 11

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658
WTNT24 KNHC 300832
TCMAT4
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 11
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL092006
0900 UTC SAT SEP 30 2006

INTERESTS IN BERMUDA...THE CANADIAN MARITIME PROVINCES...AND
NEWFOUNDLAND SHOULD MONITOR THE PROGRESS OF ISAAC.

TROPICAL STORM CENTER LOCATED NEAR 30.3N 58.0W AT 30/0900Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 6 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 995 MB
MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT.
50 KT....... 40NE 40SE 0SW 40NW.
34 KT.......100NE 90SE 60SW 60NW.
12 FT SEAS..125NE 150SE 75SW 100NW.
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 30.3N 58.0W AT 30/0900Z
AT 30/0600Z CENTER WAS LOCATED NEAR 30.1N 57.7W

FORECAST VALID 30/1800Z 30.9N 59.0W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 25NE 0SE 0SW 0NW.
50 KT... 40NE 40SE 40SW 40NW.
34 KT...100NE 90SE 60SW 60NW.

FORECAST VALID 01/0600Z 32.3N 60.4W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 30NE 25SE 0SW 0NW.
50 KT... 50NE 45SE 40SW 45NW.
34 KT...120NE 100SE 75SW 90NW.

FORECAST VALID 01/1800Z 34.7N 61.0W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 35NE 25SE 0SW 0NW.
50 KT... 50NE 45SE 40SW 45NW.
34 KT...120NE 100SE 75SW 90NW.

FORECAST VALID 02/0600Z 39.0N 60.2W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 50NE 50SE 40SW 50NW.
34 KT...120NE 120SE 75SW 90NW.

FORECAST VALID 03/0600Z 47.5N 54.5W...INLAND EXTRATROPICAL
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 50NE 50SE 35SW 50NW.
34 KT...150NE 150SE 90SW 125NW.

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 04/0600Z...ABSORBED BY EXTRATROPICAL LOW

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 30.3N 58.0W

NEXT ADVISORY AT 30/1500Z

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FORECASTER BEVEN