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| #214409 (Received by flhurricane at: 5:03 AM 07.Sep.2008) TCDAT3 TROPICAL STORM HANNA DISCUSSION NUMBER 42 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082008 500 AM EDT SUN SEP 07 2008 THE CLOUD PATTERN ASSOCIATED WITH HANNA IS SPREADING OUT WELL AHEAD OF THE SURFACE CENTER...WITH THE CLOSEST DEEP CONVECTION NOW DISPLACED ABOUT 125 NMI TO THE NORTH AND NORTHEAST. THE CIRCULATION IS ALSO CLOSE TO...BUT NOT QUITE ENTANGLED WITH...A FRONTAL BOUNDARY. BASED ON THE LOSS OF CONVECTION NEAR THE CORE...HANNA IS NO LONGER CONSIDERED TO BE A TROPICAL CYCLONE AND THIS WILL BE THE LAST ADVISORY. MAXIMUM WINDS ARE ESTIMATED TO BE 45 KT BASED ON SHIP REPORTS...AND HANNA IS EXPECTED TO REMAIN A VIGOROUS EXTRATROPICAL CYCLONE DURING ITS PASSAGE OVER THE NORTH ATLANTIC. THE OFFICIAL FORECAST IS IN GOOD AGREEMENT WITH THE GFS. FUTURE INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE OCEAN PREDICTION CENTER...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. FORECAST POSITIONS AND MAX WINDS INITIAL 07/0900Z 42.6N 70.0W 45 KT...EXTRATROPICAL 12HR VT 07/1800Z 45.4N 64.5W 45 KT...EXTRATROPICAL 24HR VT 08/0600Z 48.4N 57.1W 45 KT...EXTRATROPICAL 36HR VT 08/1800Z 50.0N 50.0W 45 KT...EXTRATROPICAL 48HR VT 09/0600Z 51.0N 43.0W 45 KT...EXTRATROPICAL 72HR VT 10/0600Z 53.5N 27.0W 45 KT...EXTRATROPICAL 96HR VT 11/0600Z 58.0N 16.0W 40 KT...EXTRATROPICAL 120HR VT 12/0600Z...ABSORBED WITHIN EXTRATROPICAL LOW $$ FORECASTER FRANKLIN |
