OK, youŽd have Computer Fltplns (TP, Temp., Wind), also Wind Charts, Significant Wx Charts, SIGMETS, FCSTs and WX Radar, sometimes there are even cockpit windows fitted to certain aircrafts and
most airliner cockpits contain at least 1.5 human beings probably holding licences based on exams.
So what made this guy flying through hailstorms ?