ZCZC MIATCDEP5 ALL TTAA00 KNHC DDHHMM HURRICANE EMILIA DISCUSSION NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL EP052012 200 PM PDT WED JUL 11 2012 EMILIA MADE A LITTLE BIT OF A COME BACK THIS AFTERNOON AND DEVELOPED A SOLID RING OF VERY DEEP CONVECTION AROUND A DISTINCT EYE. CONSEQUENTLY...DVORAK T-NUMBERS FROM ALL AGENCIES HAVE INCREASED AND NOW SUPPORT AN INITIAL INTENSITY OF 100 KNOTS. OBJECTIVE T-NUMBERS PROBABLY LED TO A HIGHER INTENSITY EARLIER...BUT SINCE THE TIME OF THE DVORAK CLASSIFICATION THE CONVECTION HAS DIMINISHED A LITTLE BIT. THERE COULD SOME ADDITIONAL FLUCTUATIONS IN INTENSITY TODAY BUT THE OVERALL TREND IS FOR THE HURRICANE TO GRADUALLY WEAKEN AS THE CIRCULATION STARTS TO INTERACT WITH COOLER WATERS IN 12 HOURS OR SO. EMILIA HAS BEEN MOVING TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT ABOUT 8 KNOTS...TRAPPED SOUTH OF A STRONG SUBTROPICAL RIDGE. NO IMPORTANT CHANGES IN THE STRUCTURE OF THE RIDGE IS ANTICIPATED SO EMILIA SHOULD CONTINUE ON A GENERAL WEST-NORTHWESTWARD TO WESTWARD TRACK AROUND THE RIDGE UNTIL THE END OF THE FORECAST PERIOD. THE TRACK GUIDANCE CONTINUES IN FAIRLY GOOD AGREEMENT...AND MOST OF THE MODELS HAVE A WEAKENING CYCLONE PROGRESSING WEST-NORTHWESTWARD AND WESTWARD. GIVEN THAT THE STEERING FLOW IS NOT FORECAST TO CHANGE...THE OFFICIAL FORECAST IS BASICALLY AN EXTRAPOLATION OF THE PREVIOUS ONE. FORECAST POSITIONS AND MAX WINDS INIT 11/2100Z 14.8N 118.2W 100 KT 115 MPH 12H 12/0600Z 15.1N 119.6W 95 KT 110 MPH 24H 12/1800Z 15.7N 121.7W 90 KT 105 MPH 36H 13/0600Z 16.2N 124.0W 75 KT 85 MPH 48H 13/1800Z 16.5N 126.5W 60 KT 70 MPH 72H 14/1800Z 17.0N 131.5W 45 KT 50 MPH 96H 15/1800Z 17.5N 136.5W 30 KT 35 MPH 120H 16/1800Z 17.5N 142.0W 25 KT 30 MPH $$ FORECASTER AVILA NNNN
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Page last modified: Monday, 31-Dec-2012 12:10:18 UTC