Prophet (SAW)'s Prayers When rain exceeds the limits

Recite:

اللَّهُمَّ حَوَالَيْنَا وَلَا عَلَيْنَا اللَّهُمَّ عَلَى الْأَكَامِ وَالْأَجَامِ وَالظِّرَابِ وَالْأَدْوِيَةِ وَمَنَابِةِ الشَّجَرِ

"O Allah, let it rain around us and not on us. O Allah, let it rain on the peaks and mountains and the rivers and at the forests". (Tirmidhi, Bukhari, Muslim)