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| #40417 (Received by flhurricane at: 10:40 AM 18.Aug.2005) TCDAT4 TROPICAL STORM IRENE DISCUSSION NUMBER 56 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 11 AM EDT THU AUG 18 2005 IRENE HAS ACCELERATED FURTHER AND IS NOW MOVING NORTHEASTWARD NEAR 40 KT. ALTHOUGH IT IS DIFFICULT TO ESTIMATE THE INTENSITY FROM SATELLITE PICTURES...SUCH A FAST FORWARD MOTION WOULD SUPPORT 50 KT WINDS. VISIBLE SATELLITE IMAGERY AND SURFACE OBSERVATIONS INDICATE THAT THE STORM IS INTERACTING WITH A FRONTAL ZONE AND ASSOCIATED EXTRATROPICAL LOW JUST EAST OF NEWFOUNDLAND...INDICATING THAT IRENE IS TRANSITIONING INTO AN EXTRATROPICAL STORM. LATEST GLOBAL MODEL GUIDANCE INDICATES THAT THE EXTRATROPICAL VERSION OF IRENE WILL SOON BE ABSORBED BY THE LARGER BAROCLINIC CYCLONE...AND SPREAD A LARGE AREA OF GALE FORCE WINDS OVER A PORTION OF THE NORTH ATLANTIC. THIS IS THE LAST ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON IRENE. FUTURE INFORMATION...IF ANY...ON THIS SYSTEM MAY BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE OCEAN PREDICTION CENTER...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. FORECASTER PASCH FORECAST POSITIONS AND MAX WINDS INITIAL 18/1500Z 45.0N 47.5W 50 KT...BECOMING EXTRATROPICAL 12HR VT 19/0000Z...ABSORBED BY LARGER EXTRATROPICAL LOW |
