Beeb weather forecasts.

I am a little tired of the shocking quality of weather forecasting found in BBC Online. It promised a frost-free night on Sunday, Monday and last night - indeed some 4 degrees above for Sheffield.
On each night there has been a deep frost - the one from Monday night was still present on the footpaths into the afternoon! (In all fairness, I must add that the severe frost at the start of Tuesday did abate during the night.)
Just what is the point if they are so far off beam and so regularly?
And when you link this kind of inaccuracy to 'global warming' they say "Ah well, that is climatology not meteorology."
I say, "Big deal!"

(Okay. Perhaps the photo is a slight exaggeration.)