Best track information for SPA 2011 201107 ZELLA
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2011011218         150.90         -14.70         1007.0           20.0
     2011011300         150.20         -14.50         1000.0           30.0
     2011011306         150.10         -13.70         1000.0           30.0
     2011011312         149.90         -12.80          996.0           35.0
     2011011318         150.40         -12.50          993.0           40.0
     2011011400         151.00         -12.40          989.0           45.0
     2011011406         151.30         -12.70          985.0           50.0
     2011011409         151.70         -12.70          985.0           50.0
     2011011412         151.90         -13.10          982.0           55.0
     2011011418         151.80         -14.00          982.0           55.0
     2011011500         152.20         -14.50          982.0           55.0
     2011011506         152.40         -15.10          978.0           60.0
     2011011512         153.20         -15.60          978.0           60.0
     2011011518         155.00         -16.20          970.0           70.0
     2011011600         156.90         -17.50          959.0           85.0
     2011011606         158.80         -19.00          952.0           95.0
     2011011612         160.80         -20.70          956.0           90.0
     2011011618         162.90         -22.80          959.0           85.0
     2011011700         165.10         -25.10          967.0           75.0
     2011011706         167.30         -27.30          974.0           65.0
     2011011712         168.50         -30.20          985.0           50.0
     2011011718         169.40         -33.30          993.0           40.0
     2011011800         170.20         -36.20          996.0           35.0