Best track information for NWP 2011 201104 SONGDA
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2011052000         140.70           8.90         1006.0           20.0
     2011052006         140.00           8.90         1007.0           20.0
     2011052012         139.40           8.70         1000.0           30.0
     2011052018         139.10           9.00         1000.0           30.0
     2011052100         138.60           8.80         1000.0           30.0
     2011052106         138.10           9.10         1000.0           30.0
     2011052112         137.70           9.40          996.0           35.0
     2011052118         137.30           9.60          993.0           40.0
     2011052200         137.00           9.80          989.0           45.0
     2011052206         136.60          10.00          985.0           50.0
     2011052212         135.80          10.40          982.0           55.0
     2011052218         134.80          10.70          982.0           55.0
     2011052300         133.80          11.00          978.0           60.0
     2011052306         133.10          11.30          978.0           60.0
     2011052312         132.40          11.50          978.0           60.0
     2011052318         131.70          11.70          974.0           65.0
     2011052400         131.10          12.00          974.0           65.0
     2011052406         130.20          12.20          974.0           65.0
     2011052412         129.40          12.20          970.0           70.0
     2011052418         128.70          12.10          963.0           80.0
     2011052500         128.20          12.20          956.0           90.0
     2011052506         127.90          12.70          944.0          105.0
     2011052512         127.60          13.20          937.0          115.0
     2011052518         127.20          13.80          933.0          120.0
     2011052600         126.50          14.70          929.0          125.0
     2011052606         125.80          15.60          918.0          140.0
     2011052612         125.00          16.30          918.0          140.0
     2011052618         124.40          17.20          918.0          140.0
     2011052700         123.90          18.20          918.0          140.0
     2011052706         123.40          19.20          922.0          135.0
     2011052712         123.10          20.40          929.0          125.0
     2011052718         123.30          21.50          937.0          115.0
     2011052800         123.90          23.00          948.0          100.0
     2011052806         125.00          24.70          956.0           90.0
     2011052812         126.90          26.50          963.0           80.0
     2011052818         129.20          28.60          974.0           65.0
     2011052900         131.50          30.70          982.0           55.0
     2011052906         134.30          32.90          985.0           50.0
     2011052912         136.60          34.40         1000.0           30.0