Hurricane Bertha

Forecast Advisory 57

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000
WTNT22 KNHC 170836
TCMAT2
TROPICAL STORM BERTHA FORECAST/ADVISORY NUMBER 57
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL022008
0900 UTC THU JUL 17 2008

TROPICAL STORM CENTER LOCATED NEAR 34.5N 59.2W AT 17/0900Z
POSITION ACCURATE WITHIN 40 NM

PRESENT MOVEMENT TOWARD THE SOUTHEAST OR 140 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 50NE 60SE 45SW 45NW.
34 KT.......120NE 140SE 100SW 100NW.
12 FT SEAS..100NE 210SE 150SW 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 34.5N 59.2W AT 17/0900Z
AT 17/0600Z CENTER WAS LOCATED NEAR 34.8N 59.6W

FORECAST VALID 17/1800Z 34.0N 58.0W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...120NE 140SE 100SW 100NW.

FORECAST VALID 18/0600Z 34.5N 55.7W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...120NE 140SE 100SW 100NW.

FORECAST VALID 18/1800Z 36.3N 53.2W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...150NE 150SE 100SW 100NW.

FORECAST VALID 19/0600Z 38.4N 50.2W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...150NE 150SE 100SW 100NW.

FORECAST VALID 20/0600Z 43.1N 44.3W...BECOMING EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...180NE 180SE 100SW 100NW.

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 21/0600Z 49.0N 37.0W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.

OUTLOOK VALID 22/0600Z 56.0N 27.5W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.5N 59.2W

NEXT ADVISORY AT 17/1500Z

$$
FORECASTER BROWN