ZCZC MIATCDEP5 ALL TTAA00 KNHC DDHHMM TROPICAL DEPRESSION ISELLE DISCUSSION NUMBER 15 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP102008 800 PM PDT SAT AUG 16 2008 ALL THAT REMAINS OF ISELLE IS AN EXPOSED SWIRL OF CLOUDS WELL DISPLACED FROM A RAPIDLY DIMINISHING SMALL AREA OF THUNDERSTORMS TO THE WEST. CONSEQUENTLY...THE SYSTEM NO LONGER MEETS THE CRITERIA OF A TROPICAL CYCLONE. HOWEVER...THERE MAY BE INTERMITTENT PERIODS OF CONVECTIVE BURSTS DURING THE NEXT FEW DAYS...BUT IT IS BELIEVED THAT THESE BRIEF EPISODES WILL NOT BE SIGNIFICANT ENOUGH TO RE-DEVELOP THE REMNANTS OF ISELLE. THE SYSTEM HAS BEEN DRIFTING NORTHWESTWARD THIS EVENING...HOWEVER THE DYNAMICAL MODELS SUGGEST THAT A GRADUAL WEST-NORTHWESTWARD MOTION SHOULD COMMENCE WITHIN THE NEXT 12 TO 24 HOURS. AFTERWARD...THIS GENERAL MOTION SHOULD CONTINUE UNTIL THE CIRCULATION DISSIPATES IN AROUND 4 DAYS...IF NOT SOONER. THIS IS THE LAST ADVISORY ON ISELLE ISSUED BY THE NATIONAL HURRICANE CENTER. FUTURE INFORMATION ON THE REMNANTS OF ISELLE CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN02 KWBC. FORECAST POSITIONS AND MAX WINDS INITIAL 17/0300Z 18.6N 112.7W 30 KT...REMNANT LOW 12HR VT 17/1200Z 18.7N 113.2W 25 KT...REMNANT LOW 24HR VT 18/0000Z 18.9N 114.1W 25 KT...REMNANT LOW 36HR VT 18/1200Z 19.0N 115.0W 25 KT...REMNANT LOW 48HR VT 19/0000Z 19.0N 115.8W 20 KT...REMNANT LOW 72HR VT 20/0000Z 19.0N 117.0W 20 KT...REMNANT LOW 96HR VT 21/0000Z...DISSIPATED $$ FORECASTER ROBERTS/AVILA NNNN
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Page last modified: Tuesday, 21-Apr-2009 12:09:40 UTC