Tropical Storm Chantal

Forecast Advisory 4

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302
WTNT23 KNHC 312031
TCMAT3
TROPICAL STORM CHANTAL FORECAST/ADVISORY NUMBER 4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL032007
2100 UTC TUE JUL 31 2007

TROPICAL STORM CENTER LOCATED NEAR 41.7N 61.2W AT 31/2100Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 23 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT....... 90NE 175SE 0SW 90NW.
12 FT SEAS.. 75NE 275SE 150SW 75NW.
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 41.7N 61.2W AT 31/2100Z
AT 31/1800Z CENTER WAS LOCATED NEAR 40.7N 62.4W

FORECAST VALID 01/0600Z 44.5N 57.3W...BECOMING EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...120NE 250SE 0SW 45NW.

FORECAST VALID 01/1800Z 48.6N 49.7W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...120NE 250SE 120SW 0NW.

FORECAST VALID 02/0600Z 53.5N 40.5W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...100NE 275SE 120SW 0NW.

FORECAST VALID 02/1800Z 57.0N 34.5W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...250NE 400SE 200SW 325NW.

FORECAST VALID 03/1800Z 60.0N 27.5W...EXTRATROPICAL
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 0NE 175SE 175SW 175NW.
34 KT...300NE 360SE 300SW 325NW.

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 04/1800Z 62.0N 19.0W...EXTRATROPICAL
MAX WIND 40 KT...GUSTS 50 KT.

OUTLOOK VALID 05/1800Z 64.0N 12.0W...EXTRATROPICAL
MAX WIND 35 KT...GUSTS 45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 41.7N 61.2W

NEXT ADVISORY AT 01/0300Z

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FORECASTER BLAKE