Best track information for SIO 1999 199930 VANCE
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     1999031600         130.20         -11.00            0.0           20.0
     1999031606         131.60         -11.10            0.0           25.0
     1999031612         132.10         -11.50            0.0           25.0
     1999031618         132.30         -12.00            0.0           25.0
     1999031700         131.00         -12.70            0.0           25.0
     1999031706         129.80         -12.90            0.0           25.0
     1999031712         128.20         -12.60            0.0           30.0
     1999031718         127.50         -12.50            0.0           30.0
     1999031800         127.10         -12.70            0.0           35.0
     1999031806         125.50         -12.50            0.0           40.0
     1999031812         124.30         -12.50            0.0           35.0
     1999031818         122.90         -13.00            0.0           55.0
     1999031900         122.00         -13.40            0.0           65.0
     1999031906         120.70         -13.80            0.0           75.0
     1999031912         119.60         -14.30            0.0           80.0
     1999031918         118.90         -14.70            0.0           90.0
     1999032000         117.80         -15.40            0.0           90.0
     1999032006         117.20         -15.90            0.0          105.0
     1999032012         116.70         -16.60            0.0          120.0
     1999032018         116.20         -17.30            0.0          125.0
     1999032100         115.70         -17.90            0.0          125.0
     1999032106         114.90         -18.60            0.0          125.0
     1999032112         114.60         -19.30            0.0          125.0
     1999032118         114.40         -20.20            0.0          125.0
     1999032200         114.30         -21.60            0.0          125.0
     1999032206         114.30         -23.00            0.0          100.0
     1999032212         115.00         -24.90            0.0           65.0
     1999032218         116.40         -26.50            0.0           55.0
     1999032300         118.70         -27.60            0.0           40.0
     1999032306         120.70         -29.00            0.0           30.0
     1999032312         123.00         -30.60            0.0           25.0