We've had a few doozies. Tornado warnings where the ranger came and told us to go to the shelter. A hail storm where it hailed so hard it punched holes in our awning fabric even though the awning was rolled up. That one dimpled our truck and our a/c unit but thankfully no other major damage.
The worst was at Itasca State Park in northern Minnesota. We were on a pontoon boat in the middle of the lake when it went from sunny to almost night-like dark in a matter of minutes. Hubby knew we needed to get off the water asap. We returned the boat and drove a few minutes back to the cg, rolled up the awning and stashed things in the truck. Made it into the camper about a minute before the storm hit. Straight line winds up to 80 mph, took 100 year old trees down all around us. Across the road a tree went down on top of their truck. The park was cut off from the world because all roads were blocked by trees. Power was out until the next day.
After the storm we walked around checking on people. A couple in a tent had a close call, had just decided to leave their tent and take cover in their car when a tree came down on their tent. They were picking up their belongings which had been scattered everywhere. We saw quite a bit of damage to RV's and the park buildings. Many awnings tore off. Branches, leaves, debris everywhere. Thankfully no injuries, which is amazing considering the trees down.
We were so blessed, all trees/branches came down around our hybrid trailer and not on top of it. We didn't even realize how bad the storm was until we looked around afterwards. It could have so easily gone bad for us.
This first picture is the tent I mentioned above-
This was about 6 feet in diameter-
A park building-
Trees snapped off-