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| #307370 (Received by flhurricane at: 9:37 AM 10.Nov.2009) TCDAT1 TROPICAL DEPRESSION IDA DISCUSSION NUMBER 27 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009 900 AM CST TUE NOV 10 2009 SATELLITE AND SURFACE OBSERVATIONS INDICATE THAT IDA HAS BECOME EXTRATROPICAL. THE LATEST SATELLITE IMAGERY SHOWS A COMMA-LIKE APPEARANCE AND TEMPERATURE DATA FROM DAUPHIN ISLAND SHOWED A 5F TEMPERATURE DECREASE AFTER THE CENTER PASSED THIS MORNING. ALTHOUGH THERE HAVE BEEN A COUPLE OF ELEVATED MARINE STATIONS REPORTING SUSTAINED WINDS OVER 34 KT...THERE ARE NO INDICATIONS THAT THESE WINDS ARE SURFACE-BASED...SO THE INITIAL INTENSITY IS SET TO 30 KT. ALTHOUGH THE NHC INTENSITY FORECAST SHOWS LITTLE CHANGE WITH IDA DURING THE NEXT DAY OR SO...THESE WINDS SHOULD BE MOSTLY CONFINED OVER WATER. THE INITIAL MOTION IS 045/8. GUIDANCE IS IN FAIR AGREEMENT ON IDA TURNING EASTWARD AS IT BECOMES ENTRAINED INTO A DEVELOPING FRONTAL SYSTEM AND THE NHC FORECAST IS BASICALLY AN UPDATE OF THE PREVIOUS FORECAST. ALTHOUGH THE NEW FORECAST WILL SHOW ABSORPTION OF IDA BY A NEW MID-LATITUDE LOW...IT IS POSSIBLE THAT IDA WILL BECOME THE DOMINANT BAROCLINIC LOW. THIS IS THE LAST ADVISORY ON THIS SYSTEM ISSUED BY THE NATIONAL HURRICANE CENTER. FUTURE INFORMATION ON THIS SYSTEM CAN BE FOUND IN PUBLIC ADVISORIES ISSUED BY THE HYDROMETEOROLOGICAL PREDICTION CENTER...UNDER AWIPS HEADER TCPAT1 AND WMO HEADER WTNT31 KWNH...BEGINNING AT 3 PM CST. FORECAST POSITIONS AND MAX WINDS INITIAL 10/1500Z 30.6N 87.6W 30 KT...EXTRATROPICAL 12HR VT 11/0000Z 30.9N 86.5W 30 KT...EXTRATROPICAL 24HR VT 11/1200Z 30.7N 84.9W 30 KT...EXTRATROPICAL 36HR VT 12/0000Z 30.0N 82.5W 25 KT...EXTRATROPICAL 48HR VT 12/1200Z...ABSORBED $$ FORECASTER BLAKE/CANGIALOSI |
