Show Selection: |
#461879 (Received by flhurricane at: 4:44 PM 25.Sep.2011) TCDAT1 POST-TROPICAL CYCLONE OPHELIA DISCUSSION NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162011 500 PM AST SUN SEP 25 2011 AN AIR FORCE RESERVE UNIT HURRICANE HUNTER AIRCRAFT INVESTIGATED OPHELIA AND FOUND A SMALL...WEAK CIRCULATION. ALTHOUGH A FEW THUNDERSTORMS DEVELOPED NEAR THIS CENTER...THE MAIN AREA OF DEEP CONVECTION IS OVER 150 N MI TO THE EAST. THE CYCLONE LACKS SUFFICIENT ORGANIZED DEEP CONVECTION TO BE CLASSIFIED AS A TROPICAL CYCLONE...AND HAS BECOME A REMNANT LOW PRESSURE AREA. THEREFORE ADVISORIES ON OPHELIA ARE BEING TERMINATED AT THIS TIME. ALTHOUGH THE CURRENT CENTER...WHICH IS MOVING WEST-NORTHWESTWARD... IS EXPECTED TO DISSIPATE IN ABOUT 24 HOURS...THERE IS THE POSSIBILITY THAT A NEW CIRCULATION CENTER COULD EVENTUALLY FORM IN THE DEEP CONVECTION FARTHER TO THE EAST. THIS NEW CENTER IS PROBABLY THE ONE THAT IS DEPICTED AS MOVING TO HIGHER LATITUDES BY THE GLOBAL MODELS. IF THIS OCCURS...THERE IS A POSSIBILITY OF REGENERATION OVER THE SUBTROPICAL WESTERN ATLANTIC. IN ANY EVENT...THE SYSTEM WILL CONTINUE TO BE MONITORED BY THE NATIONAL HURRICANE CENTER FOR SIGNS OF REDEVELOPMENT. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. FORECAST POSITIONS AND MAX WINDS INIT 25/2100Z 18.5N 60.9W 30 KT 35 MPH...POST-TROP/REMNT LOW 12H 26/0600Z 19.0N 62.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 26/1800Z 19.5N 63.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 36H 27/0600Z...DISSIPATED $$ FORECASTER PASCH |