Will it rain and thunder when you move the grave to another cemetery for burial?

It is generally a good omen that it rains when moving a grave for burial. There are some sayings, such as "Rain hits the grave, and generations are rich" and "Rain coffin".

As for the saying that much thunder and little rain, there is also the saying that lightning strikes death.

The specific situation still depends on the mountains, auspicious days and local customs.

I suggest you ask Mr. Feng Shui.