Best track information for ATL 2006 200609 HELENE
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2006091212         338.00          11.90         1007.0           25.0
     2006091218         336.80          11.90         1007.0           30.0
     2006091300         335.40          11.90         1007.0           30.0
     2006091306         333.90          12.00         1007.0           30.0
     2006091312         332.00          12.20         1007.0           30.0
     2006091318         330.00          12.50         1006.0           30.0
     2006091400         328.10          12.90         1005.0           35.0
     2006091406         326.20          13.20         1005.0           35.0
     2006091412         324.40          13.60         1003.0           40.0
     2006091418         323.00          14.00         1003.0           40.0
     2006091500         321.70          14.40         1002.0           40.0
     2006091506         320.40          14.80         1000.0           45.0
     2006091512         319.20          15.50          997.0           50.0
     2006091518         317.90          16.20          995.0           55.0
     2006091600         316.70          17.00          992.0           60.0
     2006091606         315.70          17.70          990.0           60.0
     2006091612         314.70          18.40          987.0           65.0
     2006091618         313.80          18.90          986.0           65.0
     2006091700         312.90          19.40          983.0           70.0
     2006091706         312.10          19.90          979.0           75.0
     2006091712         311.60          20.30          976.0           80.0
     2006091718         311.20          20.80          970.0           90.0
     2006091800         310.90          21.40          962.0          100.0
     2006091806         310.60          22.00          955.0          105.0
     2006091812         310.30          22.70          958.0          105.0
     2006091818         309.60          23.60          962.0           95.0
     2006091900         309.00          24.00          962.0           95.0
     2006091906         308.30          24.30          960.0           95.0
     2006091912         307.50          24.40          958.0           95.0
     2006091918         306.50          24.40          956.0           90.0
     2006092000         305.60          24.50          958.0           90.0
     2006092006         304.80          24.90          958.0           90.0
     2006092012         304.00          25.40          959.0           90.0
     2006092018         303.30          25.90          960.0           80.0
     2006092100         303.00          26.80          962.0           80.0
     2006092106         303.00          27.80          964.0           75.0
     2006092112         303.00          29.00          968.0           75.0
     2006092118         303.00          30.20          970.0           75.0
     2006092200         303.40          31.40          970.0           75.0
     2006092206         304.10          32.50          970.0           70.0
     2006092212         304.90          33.60          970.0           70.0
     2006092218         306.30          34.90          968.0           70.0
     2006092300         308.30          35.70          964.0           75.0
     2006092306         310.40          36.40          962.0           80.0
     2006092312         312.50          37.10          962.0           80.0
     2006092318         314.60          37.70          963.0           75.0
     2006092400         316.80          38.60          964.0           70.0
     2006092406         319.10          39.50          964.0           65.0
     2006092412         321.80          40.60          964.0           65.0
     2006092418         324.10          42.00          964.0           65.0
     2006092500         325.30          43.20          964.0           65.0
     2006092506         326.70          44.10          966.0           65.0
     2006092512         328.30          44.70          968.0           60.0
     2006092518         330.20          44.90          972.0           55.0
     2006092600         332.40          45.00          977.0           50.0
     2006092606         334.80          45.50          980.0           50.0
     2006092612         337.30          46.00          984.0           50.0
     2006092618         339.90          47.20          986.0           45.0
     2006092700         343.00          49.00          988.0           45.0
     2006092706         346.70          51.30          988.0           45.0
     2006092712         349.90          53.90          988.0           40.0
     2006092718         352.40          56.30          988.0           40.0