Tropical Storm BERTHA

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TROPICAL STORM BERTHA FORECAST/ADVISORY NUMBER  58
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL022008
1500 UTC THU JUL 17 2008
 
TROPICAL STORM CENTER LOCATED NEAR 34.2N  58.4W AT 17/1500Z
POSITION ACCURATE WITHIN  40 NM
 
PRESENT MOVEMENT TOWARD THE EAST-SOUTHEAST OR 110 DEGREES AT   8 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  997 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
50 KT....... 60NE  70SE  60SW   0NW.
34 KT....... 90NE 120SE 120SW  90NW.
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 34.2N  58.4W AT 17/1500Z
AT 17/1200Z CENTER WAS LOCATED NEAR 34.3N  58.9W
 
FORECAST VALID 18/0000Z 34.1N  56.9W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 90NE 120SE 120SW  90NW.
 
FORECAST VALID 18/1200Z 35.2N  54.5W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...120NE 140SE 100SW 100NW.
 
FORECAST VALID 19/0000Z 37.3N  51.8W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...150NE 150SE 100SW 100NW.
 
FORECAST VALID 19/1200Z 39.3N  49.1W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...150NE 150SE 100SW 100NW.
 
FORECAST VALID 20/1200Z 43.5N  43.0W...BECOMING EXTRATROPICAL
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...180NE 180SE  75SW  75NW.
 
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 21/1200Z 51.0N  34.0W...EXTRATROPICAL
MAX WIND  50 KT...GUSTS  60 KT.
 
OUTLOOK VALID 22/1200Z 57.5N  22.0W...EXTRATROPICAL
MAX WIND  50 KT...GUSTS  60 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.2N  58.4W
 
NEXT ADVISORY AT 17/2100Z
 
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FORECASTER BLAKE
 
 
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