Prophet (SAW)'s Prayers At the time of thunder

Recite:

اللَّهُمَّ لَا تَقْتُلْنَا بِغَضَبِكَ وَلَا تُهْلِكْنَا بِعَذَابِكَ وَعَافِنَا قَبْلَ ذَلِكَ

"O Allah, do not let us die by Your anger and do not destroy us with Your punishment, but grant us safety". (Tirmidhi)