522. Lightning strikes #1
Abdullah ibn Zubayr (RA) used to say when he heard the thunder -
سُبْحَانَ الَّذِي يُسَبِّحُ الرَّعْدُ بِحَمْدِهِ وَالْمَلَائِكَةُ مِنْ خِيْفَتِهِ
Subhaanal-lathee yusabbihur-ra'du bihamdihi wal-malaa'ikatu min kheefatihi
Translation
Glory is to Him Whom thunder and angels glorify due to fear of Him.
ReferenceSahih (Albani). Adabul Mufrad: 560
Related Duas:
Thanking Allah after the rain
During droughts and heavy rains
Lightning strikes #2
Dua during the rain #1
Dua to avoid damage due to rain # 2
Prayer for rain (Salatul Istisqa)
When strong winds begin to blow
Dua to read in case of wind / storm
Dua to avoid damage due to rain # 3
Seeing the clouds condense #2
Dua for stopping heavy rains
Dua to avoid damage due to rain # 4