How to stop beeing hit ? it's an old topic....It's seems that lightning strikes on helicopters are more frequent at relatively low OAT(around 0)....apparently few are reported under the tropics (except this L2 in Malaysia, having experienced a servo leak after a lightnng strike....I also have witnessed a strike on a parked AS 365 in Africa)....so...I personnally try to avoid vicinity of clouds with a marked electrical activity. Without a stormoscope, I try to assess the risks with the cloud vertical development and also by listening the static discharges in HF and NdB frequencies.
In doubt, I avoid.