873 
 WTPZ42 KNHC 241458
 TCDEP2
 TROPICAL DEPRESSION ANDRES DISCUSSION NUMBER  12
 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP022009
 800 AM PDT WED JUN 24 2009
  
 THE CENTER OF ANDRES HAS BEEN EXTREMELY DIFFICULT TO FIND IN
 CONVENTIONAL SATELLITE IMAGERY.  AN 0856 UTC AMSR-E MICROWAVE PASS
 WAS VERY HELPFUL IN LOCATING THE CENTER...HOWEVER A TRMM PASS ABOUT
 AN HOUR AND A HALF LATER SUGGESTED THAT THE CENTER WAS BECOMING
 ELONGATED AT THAT TIME.  A MORE RECENT 1250 UTC QUIKSCAT PASS HAS
 PROVIDED MORE EVIDENCE THAT THE CENTER IS BECOMING ELONGATED AND 
 LESS-DEFINED.  THE HIGHEST BELIEVABLE WIND VECTOR FROM THE
 SCATTEROMETER WAS AROUND 30 KT...WHICH IS USED AS THE INITIAL
 INTENSITY ESTIMATE.
 
 ANDRES IS FORECAST TO CONTINUE WEAKENING...DUE TO NORTHEASTERLY
 SHEAR AND A MORE STABLE AIRMASS. SINCE THE CENTER OF THE CYCLONE IS
 BECOMING LESS DEFINED...DISSIPATION IS NOW EXPECTED LATER TODAY AND
 ANDRES SHOULD CONTINUE MOVING NORTHWESTWARD UNTIL THAT OCCURS.
   
 FORECAST POSITIONS AND MAX WINDS
  
 INITIAL      24/1500Z 20.3N 107.7W    30 KT
  12HR VT     25/0000Z 21.0N 108.8W    25 KT...REMNANT LOW
  24HR VT     25/1200Z...DISSIPATED
  
 $$
 FORECASTER BROWN