ZCZC MIATCDEP1 ALL TTAA00 KNHC DDHHMM TROPICAL DEPRESSION MARTY DISCUSSION NUMBER 14 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP162009 800 AM PDT SAT SEP 19 2009 THERE HAS NOT BEEN MUCH CONVECTION NEAR THE EXPOSED CENTER OF MARTY DURING THE PAST FEW HOURS. AN ASCAT PASS AT 0522 UTC SHOWED WINDS OF ABOUT 25 KT...AND THAT VALUE WILL BE USED AS THE INITIAL INTENSITY. COOLER WATERS AND STRONG SHEAR SHOULD PROMOTE FURTHER WEAKENING AND A TRANSITION TO A REMNANT LOW LATER TODAY. MARTY IS CURRENTLY MOVING WEST-NORTHWEST BUT A WESTWARD TURN IS ANTICIPATED BY THIS EVENING DUE TO LOW-LEVEL RIDGING OVER THE EASTERN PACIFIC. THE OFFICIAL FORECAST IS BASICALLY AN EXTENSION OF THE PREVIOUS FORECAST...WITH THE REMNANT LOW LIKELY DISSIPATING SHORTLY AFTER 48 HOURS. FORECAST POSITIONS AND MAX WINDS INITIAL 19/1500Z 22.5N 118.0W 25 KT 12HR VT 20/0000Z 22.9N 119.5W 25 KT...REMNANT LOW 24HR VT 20/1200Z 23.0N 121.4W 20 KT...REMNANT LOW 36HR VT 21/0000Z 23.0N 123.3W 20 KT...REMNANT LOW 48HR VT 21/1200Z 22.7N 125.5W 20 KT...REMNANT LOW 72HR VT 22/1200Z...DISSIPATED $$ FORECASTER BLAKE NNNN
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