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Tropical Depression GABRIELLE


ZCZC MIATCDAT2 ALL
TTAA00 KNHC DDHHMM
TROPICAL DEPRESSION GABRIELLE DISCUSSION NUMBER  16
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL072007
1100 AM EDT TUE SEP 11 2007

THUNDERSTORM ACTIVITY CONTINUES OVER THE SOUTHEASTERN PORTION OF
GABRIELLE.  HOWEVER...A 1000 UTC QUIKSCAT OVERPASS INDICATES THAT
THE CIRCULATION HAS BECOME ILL-DEFINED AND ELONGATED SOUTHEAST TO
NORTHWEST. IN FACT...THE VORTICITY CENTER THAT HAS BEEN TRACKED IN
SATELLITE IMAGERY OVERNIGHT IS LOCATED AT THE SOUTHEASTERN END OF A
TROUGH CHARACTERIZED BY LIGHT AND VARIABLE WINDS. SINCE A
WELL-DEFINED SURFACE CIRCULATION NO LONGER EXISTS...THIS SYSTEM NO
LONGER QUALIFIES AS A TROPICAL CYCLONE AND THIS WILL BE THE LAST
ADVISORY ISSUED ON GABRIELLE.  AN ILL-DEFINED REMNANT LOW COULD
PERSIST FOR A FEW MORE HOURS BUT SHOULD DISSIPATE IN THE INCREASING
SOUTHWESTERLY FLOW AHEAD OF A DEVELOPING EXTRATROPICAL LOW OVER
EASTERN NORTH AMERICA.    
 
ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS
FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS
HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC.
  
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      11/1500Z 39.6N  65.3W    30 KT...DISSIPATING
 12HR VT     12/0000Z 40.9N  61.4W    25 KT...REMNANT LOW
 24HR VT     12/1200Z...DISSIPATED
 
$$
FORECASTER BROWN
 
NNNN


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Page last modified: Friday, 02-Nov-2007 21:20:46 UTC