Hurricane Bill

Forecast Advisory 25

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022
WTNT23 KNHC 211447
TCMAT3
HURRICANE BILL FORECAST/ADVISORY NUMBER 25
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL032009
1500 UTC FRI AUG 21 2009

A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FOR
BERMUDA.

INTERESTS ALONG THE COAST OF NEW ENGLAND AND IN THE CANADIAN
MARITIMES SHOULD MONITOR THE PROGRESS OF BILL.

HURRICANE CENTER LOCATED NEAR 27.6N 66.3W AT 21/1500Z
POSITION ACCURATE WITHIN 10 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT 16 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 958 MB
EYE DIAMETER 25 NM
MAX SUSTAINED WINDS 100 KT WITH GUSTS TO 120 KT.
64 KT.......100NE 45SE 30SW 90NW.
50 KT.......130NE 110SE 60SW 130NW.
34 KT.......250NE 200SE 120SW 200NW.
12 FT SEAS..475NE 360SE 350SW 300NW.
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 27.6N 66.3W AT 21/1500Z
AT 21/1200Z CENTER WAS LOCATED NEAR 26.9N 65.8W

FORECAST VALID 22/0000Z 29.8N 67.7W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT...100NE 45SE 30SW 90NW.
50 KT...130NE 110SE 60SW 130NW.
34 KT...250NE 200SE 120SW 200NW.

FORECAST VALID 22/1200Z 33.0N 68.5W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT...100NE 45SE 30SW 90NW.
50 KT...130NE 110SE 60SW 130NW.
34 KT...250NE 200SE 120SW 200NW.

FORECAST VALID 23/0000Z 36.5N 68.4W
MAX WIND 90 KT...GUSTS 110 KT.
64 KT...100NE 50SE 30SW 90NW.
50 KT...130NE 130SE 60SW 105NW.
34 KT...250NE 250SE 120SW 200NW.

FORECAST VALID 23/1200Z 41.0N 66.0W
MAX WIND 80 KT...GUSTS 100 KT.
50 KT...130NE 130SE 90SW 105NW.
34 KT...250NE 250SE 150SW 180NW.

FORECAST VALID 24/1200Z 48.5N 52.0W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT...100NE 130SE 100SW 90NW.
34 KT...225NE 250SE 200SW 180NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 225 NM
ON DAY 4 AND 300 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 25/1200Z 53.5N 27.5W...EXTRATROPICAL
MAX WIND 50 KT...GUSTS 60 KT.

OUTLOOK VALID 26/1200Z 57.5N 10.0W...EXTRATROPICAL
MAX WIND 40 KT...GUSTS 50 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.6N 66.3W

NEXT ADVISORY AT 21/2100Z

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FORECASTER AVILA