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Tropical Storm BERTHA


ZCZC MIATCDAT2 ALL
TTAA00 KNHC DDHHMM
TROPICAL STORM BERTHA DISCUSSION NUMBER  70
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL022008
1100 AM EDT SUN JUL 20 2008
 
BERTHA IS RAPIDLY LOSING TROPICAL CHARACTERISTICS. THE WIND FIELD
HAS BECOME EXTREMELY ASYMMETRIC AND THE CONVECTION IS DIMINISHING
NEAR THE CENTER. THUS BERTHA IS BEING DECLARED EXTRATROPICAL AND
THIS IS THE LAST ADVISORY. SHIP ABCC4 AND QUIKSCAT SUGGEST THE
MAXIMUM WINDS REMAIN NEAR 60 KT. A SLOW WEAKENING IS FORECAST IN
LINE WITH GLOBAL MODEL GUIDANCE. THE TRACK FORECAST IS IN GOOD
AGREEMENT WITH THE MODEL CONSENSUS AND SIMILAR TO THE PREVIOUS
ADVISORY. 
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      20/1500Z 51.3N  35.7W    60 KT...EXTRATROPICAL
 12HR VT     21/0000Z 55.2N  31.2W    55 KT...EXTRATROPICAL
 24HR VT     21/1200Z 61.0N  24.3W    50 KT...EXTRATROPICAL
 36HR VT     22/0000Z...DISSIPATED
 
$$
FORECASTER KNABB/BLAKE
 
NNNN


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Page last modified: Tuesday, 21-Apr-2009 12:09:06 UTC