As a (cough) older person - the weather in Britain has become more and more weird within the last few years.
I saw TDAT when it first came out and thought it was far - fetched. Last time I watched it it scared me and reminded me re global warming, tsunamis, all the rain we've had and wind - I remember a few years ago being unable to get from my front door to my car because the wind was threatening to lift me off my feet. Also in 2010 all the trees near where I live looked liken a petrified forest covered in frost and, just to go to the local shops, I had to wear all my walking gear and take my walking pole - a bit like Oates from Scott of the Antarctic -but I came back after tramping through the snow drifts.
So I think TDAT is ok.