Similar situation here a few years ago. Twice, no less.
Neighbor (we're on very good terms) was burning some brush on a nice, calm day, the wind picked up and the fire got "interesting". He tried to put it out with his tractor (obligatory TBN content), and ran over a railroad spike left there by previous (dirtball) owner, immobilizing the tractor. He was able to get the tractor out of harm's way, and the FD showed up, put the fire out, and gave him a stern warning.
A few years later, he's got a friend's camper parked next to his fifth wheel and storage shed and out of the clear blue sky, no rain, it gets hit by lightning.
Kaboom!!! - The propane bottles blow up, the camper is in flames, the truck's gas tank goes up, looks like some kind of a grade B disaster movie.
He's not home . . . but his 81 y.o. mother is out there fighting the roaring flames with a garden hose . . . and realizes pretty quickly that this is a losing proposition, and she calls the FD.
Meantime, I'm sitting in my house and I'm hearing this noise, kind of like a railroad train, but from the wrong direction. Go outside and look, nothing north, east, west . . . but oh **** look south! Great big billows of smoke, sparks, and its coming THIS WAY!
FD shows up, hoses down everything to little avail, the flames from burning brush are higher than the roof on my hangar (17 feet) and we have no fewer than a dozen fire engines parked on our front lawn. (I have a screen grab from one of the news helicopters showing the flames very near the hangar.) We have fire equipment and personnel from as far as 20 miles away.
They've got the area surrounding my house and hangar well hosed down, and one of the fire marshals tells me that I don't look particularly worried. I told him yes, I am concerned, but no, I am not terribly worried because steel (hangar and roof of the house) and concrete (walls of the house) don't burn. He said he was glad that somebody got that word. We also have a "defensible space" fire margin around our structures - about 15 to 20 feet of nothing that will burn.
They also cut some fire lanes on some neighboring properties, and the fire extended almost half a mile and did manage to burn down a small part of another neighbor's wooden fence.
All in all, the damages were the camper, some miscellaneous "stuff" in his storage shed, a bunch of brush and trees (which needed to be cleared out anyway), and the neighbor's brave mother got her eyebrows slightly singed (I think that was when she decided to yell for help.)
I knew the neighbor was out of town and where, and I called him and told him to get on his horse and come home RIGHT NOW because there is a fire, your mom is fine, but but move it! He did - I had no idea he owned a supersonic pickup truck.
Took about a week for the smell to go away. neighbor and I are still on very good terms, the lightning wasn't his fault.
Best Regards,
Mike/Florida