ZCZC MIATCDAT5 ALL TTAA00 KNHC DDHHMM TROPICAL STORM DANNY DISCUSSION NUMBER 8 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 5 AM EDT FRI JUL 18 2003 THE INITIAL MOTION ESTIMATE IS 025/12. THE GFS MODEL KEEPS A DEEP-LAYER-MEAN ANTICYCLONE NEARLY STATIONARY NEAR 35N 50W FOR THE NEXT SEVERAL DAYS. THE OFFICIAL FORECAST TRACK FOLLOWS A BLEND OF THE GLOBAL MODEL GUIDANCE MOVING THE STORM AT NEAR 15 KNOTS AROUND THE ANTICYCLONE AND IS SIMILAR TO THE PREVIOUS ADVISORY TRACK FORECAST. THERE IS A DECREASE IN FORWARD SPEED AFTER 72 HOURS. SATELLITE DVORAK CLASSIFICATIONS ARE IN THE 45-55 KNOT RANGE. THE OFFICIAL INITIAL WIND SPEED IS 55 KNOTS WITH A RECENT DECENT BANDING FEATURE. DANNY STILL HAS ABOUT 12 HOURS OVER WARM WATER. THEN MOST OF THE GUIDANCE DISSIPATES THE STORM BY ABOUT 72 HOURS. FOLLOWING THE PREVIOUS ADVISORY...THE OFFICIAL FORECAST HOLDS ON TO A REMNANT LOW THROUGH 120 HOURS. FORECASTER LAWRENCE FORECAST POSITIONS AND MAX WINDS INITIAL 18/0900Z 37.8N 55.7W 55 KT 12HR VT 18/1800Z 39.6N 54.1W 55 KT 24HR VT 19/0600Z 41.6N 50.9W 50 KT 36HR VT 19/1800Z 42.8N 46.6W 45 KT 48HR VT 20/0600Z 42.6N 42.5W 35 KT 72HR VT 21/0600Z 40.0N 37.0W 25 KT 96HR VT 22/0600Z 37.0N 35.0W 20 KT...REMNANT LOW 120HR VT 23/0600Z 34.5N 36.0W 20 KT...REMNANT LOW NNNN
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