Best track information for ATL 2003 200307 GRACE
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2003083012         267.60          24.30         1008.0           30.0
     2003083018         266.70          24.90         1009.0           35.0
     2003083100         265.70          25.80         1009.0           35.0
     2003083106         265.10          27.20         1008.0           35.0
     2003083112         264.80          29.40         1007.0           35.0
     2003083118         264.40          30.10         1009.0           30.0
     2003090100         263.60          30.90         1009.0           25.0
     2003090106         263.40          31.90         1010.0           20.0
     2003090112         263.50          32.60         1010.0           20.0
     2003090118         264.30          33.60         1011.0           20.0
     2003090200         265.00          34.10         1011.0           15.0
     2003090206         265.50          34.60         1013.0           15.0