In article ,
David Allan writes:
The Met Office weather warnings, such as they, serve to remind us of just
how soft we have become. We didn't have people telling us to wrap up warm in
years gone by, no one to advise on filling a hot-water bottle, or how it
might be a good idea to put an extra overcoat on the bed. You have to wonder
just how we all coped!

My guess is that this is not something that the Met Office wanted to do,
but that the DHSS wanted it and so the government told them to do it.
Apparently the threshold for a Level 2 alert has been set at a forecast
mean temperature for the day of 2C or less. Given that over much of the
country the long-term mean is about 4C, only two degrees higher, that
seems crazy.
--
John Hall
"The power of accurate observation is commonly called cynicism
by those who have not got it."
George Bernard Shaw