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 899 
 WTNT44 KNHC 071455
 TCDAT4
 
 Subtropical Storm Debby Discussion Number   1
 NWS National Hurricane Center Miami FL       AL042018
 1100 AM AST Tue Aug 07 2018
 
 The non-tropical low that NHC has been tracking over the North
 Atlantic for the past few days has developed subtropical
 characteristics and has been upgraded to subtropical storm status.
 The tropical-storm-force winds associated with Debby are well
 removed from the center as indicated by a recent ASCAT pass and are
 occurring within a cyclonically curved band of moderate convection.
 Although transition to a tropical cyclone is possible, no
 significant strengthening is anticipated since the cyclone will soon
 be moving over cool water and become fully embedded within a larger
 mid-latitude trough approaching from the west. Debby is expected to
 dissipate in about 48 hours or earlier.
 
 The best estimate of the initial motion is toward the north or 355
 degrees at 14 kt. The subtropical storm should continue on this
 general track with a decrease in forward speed for the next 24
 hours or so and then turn to the northeast ahead of the trough,
 which will eventually absorb Debby.
 
 FORECAST POSITIONS AND MAX WINDS
 
 INIT  07/1500Z 38.9N  48.5W   35 KT  40 MPH
  12H  08/0000Z 41.0N  48.5W   35 KT  40 MPH
  24H  08/1200Z 42.7N  48.5W   35 KT  40 MPH
  36H  09/0000Z 44.0N  47.0W   30 KT  35 MPH
  48H  09/1200Z...DISSIPATED
 
 $$
 Forecaster Avila
 
 
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