ZCZC MIATCDEP2 ALL TTAA00 KNHC DDHHMM TROPICAL DEPRESSION BLANCA DISCUSSION NUMBER 18 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 2 AM PDT SAT JUN 21 2003 BLANCA CONSISTS OF A SHAPELESS AREA OF WEAK CONVECTION BUT STILL HAS A SURFACE CIRCULATION AS INDICATED BY THE LATEST QUIKSCAT. THE DEPRESSION IS EMBEDDED WITHIN AN UNFAVORABLE SHEARING ENVIRONMENT SO DISSIPATION IS EXPECTED IN 12 HOURS OR SO. SOME PATCHES OF INTERMITTENT CONVECTION MAY STILL DEVELOP. THE CIRCULATION IS DRIFTING WESTWARD AND IS EXPECTED TO CONTINUE MOVING VERY SLOWLY TOWARD THE WEST UNTIL DISSIPATION. FORECASTER AVILA FORECAST POSITIONS AND MAX WINDS INITIAL 21/0900Z 15.3N 106.8W 25 KT 12HR VT 21/1800Z 15.3N 107.0W 25 KT...DISSIPATING 24HR VT 22/0600Z 15.3N 107.5W 20 KT...REMNANT LOW 36HR VT 22/1800Z 15.5N 108.0W 20 KT...REMNANT LOW NNNN
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