Best track information for ATL 2001 200109 IRIS
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2001100412         301.80          12.30         1011.0           25.0
     2001100418         300.10          12.80         1010.0           30.0
     2001100500         298.60          13.40         1010.0           30.0
     2001100506         297.00          14.00         1010.0           30.0
     2001100512         295.50          14.80         1008.0           35.0
     2001100518         294.00          15.50         1005.0           45.0
     2001100600         292.30          15.70         1001.0           50.0
     2001100606         291.00          16.00          998.0           55.0
     2001100612         289.50          16.50          998.0           55.0
     2001100618         287.80          16.90          992.0           65.0
     2001100700         286.00          16.90          993.0           75.0
     2001100706         284.70          16.90          989.0           75.0
     2001100712         283.00          17.30          989.0           75.0
     2001100718         281.10          17.40          991.0           75.0
     2001100800         279.40          17.30          988.0           80.0
     2001100806         277.70          17.20          963.0           90.0
     2001100812         276.00          17.10          950.0          120.0
     2001100818         274.00          16.80          950.0          115.0
     2001100900         272.00          16.50          948.0          125.0
     2001100906         270.10          16.20         1005.0           60.0
     2001100912         268.10          16.20         1004.0           30.0