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Thanks, CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL. 1100 AM EDT SUN 08 AUGUST 2010 SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD) VALID 09/1100Z TO 10/1100Z AUGUST 2010 TCPOD NUMBER.....10-070 CORRECTION I. ATLANTIC REQUIREMENTS 1. NEGATIVE RECONNAISSANCE REQUIREMENTS. 2. OUTLOOK FOR SUCCEEDING DAY: POSSIBLE LOW LEVEL INVEST IN E. GULF NEAR 26.5N 83.5W AT 10/1800 ********************************************* MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 820 AM EDT SUN AUG 08 2010 SIGNIFICANT CHANGES IN THE MODELS SINCE THIS TIME YESTERDAY WITH THE LOW EXPECTED TO PINCH OFF THE FRONTAL TROUGH OVER CENTRAL FLORIDA. THE CMC..ECMWF...AND UKMET ALL SHOW A MUCH MORE ORGANIZED LOW PRES SYSTEM DEEPENING OVER THE EASTERN GULF MON AND MOVING WEST-NORTHWEST TOWARD LOUISIANA BY THU COMPARED TO THEIR RUNS THIS TIME YESTERDAY. THE GFS IS SIGNIFICANTLY WEAKER AND FARTHER E WITH THE TRACK IN THE GULF...BUT IT HAS BEEN SLOWLY TRENDING TOWARD THE OTHER MODELS THE LAST FEW DAYS. THE HPC/NHC NOON MEDIUM RANGE CALL SAT CALLED FOR A COMPROMISE BETWEEN THE ECMWF AND GFS TRACK WHICH CARRIES A TUE MORNING LOW POSITION NEAR 29N82W AND BRIEFLY MOVES IT INTO THE FAR NE GULF BEFORE CARRYING IT INTO THE FLORIDA PANHANDLE NEAR 30N85W WED MORNING. THESE POINTS WERE TWEAKED TOWARD THE CONSENSUS OF THE ECMWF...UKMET...AND CMC WHICH WERE FARTHER SOUTHWEST WITH THE TRACK AND ALLOWED THE LOW MORE TIME OVER THE GULF WATERS. EARLY MORNING OBSERVATIONS OVER NORTH FLORIDA SHOW A CLEAR WIND SHIFT SUGGESTING THE PASSAGE OF A FRONTAL TROUGH. THE SATELLITE SIGNATURE NEAR BUOY 41010 THIS MORNING SUGGESTS THERE MAY BE A WAVE DEVELOPING ALONG THE BOUNDARY. THE MODELS SUGGEST THE DEVELOPMENT OF A MID LEVEL LOW SOMEWHERE OVER CENTRAL FLORIDA TONIGHT OR MON...BUT THEY ARE NOT SURE OF THE DETAILS. BY TUE...THE UKMET...ECMWF...AND CMC COME INTO EXCELLENT AGREEMENT ON A RETROGRADING AND DEEPENING LOW PRES SYSTEM IN THE GULF OF MEXICO BORN FROM THE ENERGY ASSOCIATED WITH THIS FRONTAL TROUGH WHILE THE GFS IS WEAKER AND MORE NORTHERLY WITH THE SYSTEM. THE GFS HAS BEEN PLAYING CATCH UP HERE. GIVEN THE CURRENT SATELLITE IMAGERY...IT APPEARS THE ECMWF HAS THE BEST HANDLE ON THE DEVELOPMENT NEAR FLORIDA FOR NOW. PLEASE SEE THE DISCUSSION IN THE GULF OF MEXICO SECTION FOR MORE DETAILS ON THIS SYSTEM. (contents in the first paragraph) http://www.srh.noaa.gov/data/NHC/MIMATS |