As scary as they might be being inside a tent presents the same risk as being in the open field.
Roof top tent lightning storm.
Your tent is designed to protect you from rain the sun and even heat.
A tent and lightning are a bad combination.
When you hear thunder lightning is within striking distance.
What started out as a fad that only appealed to rich outdoorspeople has since become much more accessible to all campers thanks to new models for budgets of all sizes.
Your tent is not safe.
The possibility for a tent to get struck by lightning is increased by the campsite location and adjacent tall objects.
However due to the higher ground and the isolated tree next to the tent this would not be a safe location in a thunderstorm.
If you can hear the thunder lightning is within striking distance and you should head to a location such as a building or an all metal vehicle.
Find a safe location immediately either in a building with plumbing and wiring or an all metal automobile not convertible top.
Just a few years ago rooftop tents began popping up in the outdoor market but they were ridiculously expensive.