| REMNANTS OF GABRIELLE DISCUSSION NUMBER 22 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072013 500 PM AST FRI SEP 13 2013 THE STORM-MOTION-RELATIVE CENTER OF GABRIELLE BECAME A LITTLE EASIER TO IDENTIFY DURING THE PAST SEVERAL HOURS...AND VISIBLE SATELLITE IMAGERY CONFIRMS THE EARLIER ASCAT DATA THAT INDICATED THE CIRCULATION WAS NO LONGER CLOSED. THEREFORE...THIS IS THE FINAL NHC ADVISORY. THE REMNANTS OF GABRIELLE ARE MOVING RAPIDLY TOWARD THE NORTH- NORTHEAST AT ABOUT 30 KT. THE DYNAMICAL MODELS REMAIN IN GOOD AGREEMENT THAT THE REMNANT TROUGH WILL MOVE RAPIDLY TOWARD THE NORTH-NORTHEAST AHEAD OF A DEEP LAYER TROUGH OVER THE EASTERN UNITED STATES AND CANADA FOR THE NEXT DAY OR SO...BEFORE BEING ABSORBED BY AN APPROACHING COLD FRONT. ALTHOUGH THE SURFACE CIRCULATION HAS DISSIPATED...HEAVY RAIN AND POSSIBLE GALE CONDITIONS ARE STILL EXPECTED OVER PARTS OF ATLANTIC CANADA TODAY AND TOMORROW. FORECAST POSITIONS AND MAX WINDS INIT 13/2100Z 42.0N 64.0W 30 KT 35 MPH...REMNANTS 12H 14/0600Z...DISSIPATED $$ FORECASTER FRANKLIN/ZELINSKY REMNANTS OF GABRIELLE ADVISORY NUMBER 22 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072013 500 PM AST FRI SEP 13 2013 ...GABRIELLE NO LONGER A TROPICAL CYCLONE... ...REMNANTS BRINGING HEAVY RAIN TO ATLANTIC CANADA... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...42.0N 64.0W ABOUT 320 MI...515 KM E OF NANTUCKET MASSACHUSETTS ABOUT 180 MI...290 KM S OF HALIFAX NOVA SCOTIA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 25 DEGREES AT 35 MPH...55 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ SATELLITE DATA INDICATE THAT GABRIELLE NO LONGER HAS A CLOSED SURFACE WIND CIRCULATION AND HAS DEGENERATED INTO A TROUGH OF LOW PRESSURE. AT 500 PM AST...2100 UTC...THE CENTER OF THE REMNANTS OF GABRIELLE WAS ESTIMATED NEAR LATITUDE 42.0 NORTH...LONGITUDE 64.0 WEST. THE REMNANTS OF GABRIELLE ARE MOVING TOWARD THE NORTH- NORTHEAST AROUND 35 MPH...55 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT DAY OR SO. MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH...55 KM/H...WITH HIGHER GUSTS. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1004 MB...29.65 INCHES. HAZARDS AFFECTING LAND ---------------------- RAINFALL...GABRIELLE IS EXPECTED TO BRING RAINFALL AMOUNTS OF 2 TO 4 INCHES TO PORTIONS OF ATLANTIC CANADA OVER THE NEXT DAY OR SO. NEXT ADVISORY ------------- THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. $$ FORECASTER FRANKLIN/ZELINSKY |