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Tropical Depression HUMBERTO


ZCZC MIATCDAT4 ALL
TTAA00 KNHC DDHHMM
 
TROPICAL DEPRESSION HUMBERTO DISCUSSION NUMBER  36
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092013
500 AM AST THU SEP 19 2013
 
DEEP CONVECTION ASSOCIATED WITH HUMBERTO IS LIMITED TO A CLUSTER OF
CELLS LOCATED 100-200 N MI SOUTHEAST OF THE CENTER.  THE CYCLONE IS
MAINTAINED AS A 30-KT TROPICAL DEPRESSION FOR THIS ADVISORY...BUT
IT COULD BE CLOSE TO BECOMING POST-TROPICAL.  THE GLOBAL MODELS
HAVE ALL TRENDED TOWARDS SHOWING THE SURFACE WIND FIELD OF HUMBERTO
OPENING UP INTO A TROUGH IN 12 TO 24 HOURS...AND IT IS POSSIBLE
THAT THE DEPRESSION COULD DISSIPATE EARLIER THAN WE HAVE BEEN
INDICATING.  FOR THE SAKE OF CONTINUITY...THE OFFICIAL FORECAST
SHOWS POINTS OUT TO 36 HOURS.  IF IT DOES LAST THAT LONG...HUMBERTO
SHOULD ULTIMATELY BE ABSORBED BY A FRONTAL ZONE BY 48 HOURS.
 
A MORE WELL-DEFINED SURFACE CENTER HAS FORMED...BUT THAT NOW PUTS
HUMBERTO ABOUT A DEGREE WEST OF THE PREVIOUS ESTIMATES.
REGARDLESS...THE DEPRESSION IS STILL MOVING GENERALLY NORTHWARD
AROUND 7 KT.  AN APPROACHING COLD FRONT FROM THE WEST IS EXPECTED
TO CAUSE HUMBERTO TO TURN NORTHEASTWARD AND ACCELERATE WITHIN 24
HOURS AND THEN MAINTAIN THAT HEADING UNTIL IT IS ABSORBED.  THE NHC
TRACK FORECAST IS JUST A LITTLE WEST OF THE PREVIOUS ONE DURING THE
FIRST 24 HOURS TO ACCOUNT FOR THE ADJUSTED INITIAL POSITION...BUT
OTHERWISE THERE ARE NO SIGNIFICANT CHANGES. 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  19/0900Z 33.0N  44.3W   30 KT  35 MPH
 12H  19/1800Z 34.5N  43.6W   30 KT  35 MPH
 24H  20/0600Z 36.3N  41.4W   30 KT  35 MPH
 36H  20/1800Z 38.6N  38.4W   35 KT  40 MPH...POST-TROPICAL
 48H  21/0600Z...ABSORBED BY A FRONT
 
$$
FORECASTER BERG
 
NNNN


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Page last modified: Monday, 07-Apr-2014 23:29:02 UTC