I can confirm this.
Once a very long time ago, our school decided to have an army style easter holiday camp climbing welsh mountains.
After nearly freezing to death getting stuck overnight hitching there, we arrived to find the best spots for our miserable pup tents already taken - nice streamside locations all gone. We parked ours up the bank aways, and attempted to sleep...and it rained...and it rained...there was some kerfuffle about 3 in the morning but having spent the previous one shivering in a phone box in some unpronounceable welsh town, we paid little heed.
Until the following morning when we discovered that rain and melting snow, plus a dead sheep that had washed down the stream and neatly blocked the hole in the dry stone wall through which it ran, had turned the desirable tent locations into something resembling the sort of thing that usually gets the world supply of press helicopters hovering overhead, and food parcels being dropped.
WE didn't see any helicopters apart from the one we found the next day crashed up the snow covered mountain that the army search teams were NOT looking on.
I think it was about that time that my lifelong love affair with central heating and temperatures in excess of 25C started.