ZCZC MIATCDAT4 ALL TTAA00 KNHC DDHHMM RRA TROPICAL STORM SEAN DISCUSSION NUMBER 15...RETRANSMITTED NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011 500 PM AST FRI NOV 11 2011 SEAN IS QUICKLY LOSING TROPICAL CHARACTERISTICS. VISIBLE SATELLITE IMAGES SHOW STABLE STRATOCUMULUS CLOUDS ENTRAINING INTO THE SOUTHERN HALF OF THE CIRCULATION. THIS STABLE AIR IS ALSO EVIDENT IN SURFACE OBSERVATIONS...WITH THE DEWPOINT IN BERMUDA FALLING ABOUT 3C DURING THE LAST FEW HOURS. MEANWHILE...A RAGGED CURVED BAND OF CONVECTION STILL EXISTS ON THE EAST SIDE OF THE CIRCULATION...AND THAT IS THE BASIS FOR MAINTAINING ADVISORIES ON THIS SYSTEM. NONETHELESS...SEAN IS EXPECTED TO BECOME POST-TROPICAL SOON AND WILL LIKELY BE ABSORBED BY A COLD FRONT...WHICH IS NOW VERY NEAR THE CYCLONE...TONIGHT OR EARLY SATURDAY. SEAN IS RACING NORTHEASTWARD AND SHOULD CONTINUE MOVING IN THAT DIRECTION OVER THE NORTH ATLANTIC UNTIL DISSIPATION. FORECAST POSITIONS AND MAX WINDS INIT 11/2100Z 35.5N 61.3W 45 KT 50 MPH 12H 12/0600Z 38.2N 56.2W 45 KT 50 MPH...POST-TROP/EXTRATROP 24H 12/1800Z...DISSIPATED $$ FORECASTER CANGIALOSI NNNN
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