Best track information for SIO 1998 199905 BILLY
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     1998120112         120.10         -13.20            0.0           20.0
     1998120118         120.10         -13.90            0.0           25.0
     1998120200         120.10         -14.90            0.0           25.0
     1998120206         120.00         -15.60            0.0           25.0
     1998120212         119.70         -16.10            0.0           25.0
     1998120218         119.20         -16.60            0.0           30.0
     1998120300         118.70         -17.00            0.0           35.0
     1998120306         118.10         -17.30            0.0           40.0
     1998120312         117.70         -17.50            0.0           45.0
     1998120318         117.30         -17.80            0.0           55.0
     1998120400         116.90         -18.00            0.0           65.0
     1998120406         116.60         -18.20            0.0           65.0
     1998120412         116.20         -18.50            0.0           65.0
     1998120418         115.80         -18.90            0.0           60.0
     1998120500         115.50         -19.30            0.0           60.0
     1998120506         115.30         -19.60            0.0           50.0
     1998120512         115.10         -20.10            0.0           45.0
     1998120518         114.90         -20.50            0.0           45.0
     1998120600         114.90         -21.00            0.0           40.0
     1998120606         115.00         -21.60            0.0           35.0
     1998120612         115.50         -22.50            0.0           25.0
     1998120618         115.80         -23.20            0.0           25.0
     1998120700         116.50         -23.90            0.0           20.0
     1998120706         117.70         -24.60            0.0           20.0