Sooo....if your house has never been hit by lightening, it that fact proof that it doesn't happen to another?
Grass can be damaged by long-term or heavy snow cover. Here's a little bit about it:
We have had our southern lawn under salt water for several days, with no damage at all. Storm surge, hurricane in G. of Mexico. It gets watered all the time with reclaimed water that has a little salt in it.