From what I understand, it's due to hit the UK overnight on Sunday night, but I do think, In It, it's probably a case of worst case scenario, as you say, so no one can say we weren't told!! There was a storm about 20 odd years ago that no one failed to predict, so since then, it seems they've gone the other way! In comparison with other countries, our weather isn't very extreme - we are just not very good, in the UK, of coping with anything out of the ordinary - the whole country grinds to a halt with a sprinkle of snow!!!
We are fine for heating - we have gas central heating, but do have intermittent electricity problems anyway, so envisage that or structural damage would be the main issues.
xxx