Best track information for ATL 2011 201107 GERT
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2011081306         302.00          26.20         1013.0           30.0
     2011081312         300.60          26.90         1012.0           30.0
     2011081318         299.40          27.30         1011.0           30.0
     2011081400         298.50          27.50         1011.0           30.0
     2011081406         297.70          27.70         1011.0           35.0
     2011081412         297.10          28.10         1010.0           40.0
     2011081418         296.90          28.80         1009.0           40.0
     2011081500         296.70          29.60         1006.0           45.0
     2011081506         296.60          30.60         1003.0           50.0
     2011081512         296.80          31.60         1000.0           55.0
     2011081518         297.30          32.90         1003.0           50.0
     2011081600         298.40          34.20         1005.0           45.0
     2011081606         299.70          35.60         1007.0           45.0
     2011081612         301.90          37.10         1008.0           40.0
     2011081618         304.20          38.60         1008.0           40.0
     2011081700         306.60          40.10         1010.0           35.0
     2011081706         309.10          41.50         1012.0           30.0
     2011081712         311.70          42.90         1014.0           30.0
     2011081718         315.20          44.90         1015.0           30.0