ZCZC MIATCDEP4 ALL TTAA00 KNHC DDHHMM TROPICAL STORM FRANK DISCUSSION NUMBER 27 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP092010 200 AM PDT SAT AUG 28 2010 FRANK HAS LOST ALL OF ITS DEEP CONVECTION AND IS NOW ONLY A TIGHT SWIRL OF LOW-LEVEL CLOUDS. SINCE THE CYCLONE LACKS CONVECTION... DVORAK DATA T-NUMBERS CAN NOT BE MEASURED. THE INITIAL INTENSITY IS LOWERED TO 35 KT...AND THAT COULD BE GENEROUS. CONTINUED WEAKENING IS FORECAST AS FRANK IS EXPECTED TO REMAIN OVER COOL WATERS. THE OFFICIAL FORECAST SHOWS FRANK DEGENERATING TO A REMNANT LOW IN 24 HOURS...BUT IF CONVECTION DOES NOT RE-DEVELOP THAT COULD OCCUR SOONER. THE INITIAL MOTION IS 345/4...A LITTLE TO THE EAST OF THE PREVIOUS FORECAST TRACK. FRANK...OR ITS REMNANTS...ARE EXPECTED TO TURN NORTH-NORTHEAST AND THEN NORTHEAST WITH A DECREASE IN FORWARD SPEED UNTIL DISSIPATION. FORECAST POSITIONS AND MAX WINDS INITIAL 28/0900Z 20.3N 112.4W 35 KT 12HR VT 28/1800Z 20.8N 112.4W 30 KT 24HR VT 29/0600Z 21.3N 112.3W 25 KT...POST-TROP/REMNT LOW 36HR VT 29/1800Z 21.6N 112.1W 20 KT...POST-TROP/REMNT LOW 48HR VT 30/0600Z 21.8N 111.8W 20 KT...POST-TROP/REMNT LOW 72HR VT 31/0600Z...DISSIPATED $$ FORECASTER CANGIALOSI NNNN
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