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Tropical Depression SIXTEEN


ZCZC MIATCDAT1 ALL
TTAA00 KNHC DDHHMM
TROPICAL DEPRESSION SIXTEEN DISCUSSION NUMBER   1
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL162008
1100 AM EDT TUE OCT 14 2008
 
SATELLITE AND SURFACE OBSERVATIONS INDICATE THAT THE AREA OF LOW
PRESSURE OVER THE WESTERN CARIBBEAN SEA HAS ACQUIRED ENOUGH
ORGANIZATION TO BE DESIGNATED A TROPICAL DEPRESSION.  SURFACE
OBSERVATIONS FROM EASTERN HONDURAS AND AN 1110 UTC SSMIS OVERPASS
SUGGEST THAT THE CENTER IS LOCATED JUST NORTHEAST OF THE COAST OF
EASTERN HONDURAS. THE INITIAL INTENSITY IS SET AT 25 KT...BASED ON
DVORAK INTENSITY ESTIMATES FROM TAFB AND SAB.  AN AIR FORCE RESERVE
RECONNAISSANCE AIRCRAFT IS SCHEDULED TO INVESTIGATE THE DEPRESSION
THIS AFTERNOON...WHICH SHOULD PROVIDE A MORE ACCURATE ASSESSMENT OF
THE INTENSITY.

THE SOMEWHAT UNCERTAIN INITIAL MOTION ESTIMATE IS 325/6. THE TRACK
GUIDANCE PREDICTS A TURN TOWARD THE WEST VERY SOON TO THE SOUTH OF
A DEEP-LAYER RIDGE CENTERED OVER THE SOUTHEASTERN UNITED STATES.
SOME OF THE TRACK MODELS PREDICT A WEST-SOUTHWESTWARD MOTION WHICH
BRINGS THE CENTER INLAND OVER EASTERN HONDURAS.  THE OFFICIAL
FORECAST LEANS TOWARD THE GFDL AND UKMET SOLUTION...WHICH KEEP THE
CENTER OVER WATER FOR THE NEXT 2-3 DAYS...JUST NORTH OF THE NORTHERN
COAST OF HONDURAS AND THEN MAKES LANDFALL IN BELIZE.  HOWEVER...IT
IS CERTAINLY POSSIBLE THAT THE DEPRESSION COULD MAKE LANDFALL IN
HONDURAS...THEREFORE...THE GOVERNMENT OF HONDURAS AS ISSUED A
TROPICAL STORM WARNING FOR THE EASTERN PORTION OF THEIR COUNTRY.

THE EXACT TRACK OF THE DEPRESSION WILL HAVE LARGE IMPLICATIONS ON
THE FUTURE INTENSITY OF THE CYCLONE.  IF THE CENTER REMAINS OVER
THE WARM WATERS OF THE WESTERN CARIBBEAN DURING THE NEXT COUPLE OF
DAYS...SHEAR IS FORECAST TO REMAIN LOW...SO INTENSIFICATION WOULD
APPEAR LIKELY.  OF COURSE...IF THE CENTER MOVES NEAR OF OVER LAND
THE CHANGES FOR STRENGTHENING WOULD BE MUCH LESS.  THE OFFICIAL
FORECAST...WHICH KEEPS THE CENTER OVER WATER...CALLS FOR GRADUAL
INTENSIFICATION IN LINE WITH THE LATEST SHIPS MODEL GUIDANCE.

FORECAST POSITIONS AND MAX WINDS
 
INITIAL      14/1500Z 15.6N  83.0W    25 KT
 12HR VT     15/0000Z 16.0N  83.6W    30 KT
 24HR VT     15/1200Z 16.3N  84.5W    40 KT
 36HR VT     16/0000Z 16.4N  85.6W    45 KT
 48HR VT     16/1200Z 16.3N  87.0W    50 KT
 72HR VT     17/1200Z 16.2N  89.0W    55 KT...INLAND
 96HR VT     18/1200Z 16.3N  90.5W    25 KT...INLAND
120HR VT     19/1200Z...DISSIPATED
 
$$
FORECASTER BROWN
 
NNNN


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Page last modified: Tuesday, 21-Apr-2009 12:09:26 UTC