Tropical Depression ALETTA
ZCZC MIATCDEP1 ALL TTAA00 KNHC DDHHMM TROPICAL DEPRESSION ALETTA DISCUSSION NUMBER 15 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP012006 200 PM PDT TUE MAY 30 2006 VISIBLE IMAGERY THIS AFTERNOON REVEALS THAT THE CIRCULATION OF ALETTA HAS BECOME DIFFUSE AND ILL-DEFINED. CONSEQUENTLY...THE SYSTEM IS NO LONGER A TROPICAL CYCLONE AND THIS WILL BE THE LAST ADVISORY. THE CONVECTION THAT WAS PRESENT EARLIER HAS LARGELY EVAPORATED. VERTICAL SHEAR IS STRONG OVER THE SYSTEM AND EXPECTED TO GET STRONGER. GIVEN THIS AND THE DRY ENVIRONMENT...REGENERATION IS UNLIKELY. THE REMNANTS OF ALETTA ARE EXPECTED TO MOVE GENERALLY WESTWARD TO THE SOUTH OF A MID- TO LOWER-LEVEL RIDGE. FORECASTER FRANKLIN FORECAST POSITIONS AND MAX WINDS INITIAL 30/2100Z 16.4N 103.9W 25 KT...DISSIPATING 12HR VT 31/0600Z 16.4N 104.6W 20 KT...REMNANT LOW 24HR VT 31/1800Z 16.4N 105.8W 20 KT...REMNANT LOW 36HR VT 01/0600Z...DISSIPATED $$ NNNN