In message , Dave Cornwell
writes
The point you are missing is that I am not "grumbling" about the
weather but the presentation of a forecast that was so far wrong here
that it was a joke. Moreover the "now" forecast wasn't changed at 1pm.

Perhaps part of the problem is that (I surmise) the BBC on-duty weather
presenter doesn't have the authority to change the "official" forecast
even if he or she can look out of the window and see that it's wrong. (I
think the BBC presenters are still based in London, aren't they, or have
they been sent off to Salford along with most of the BBC?) I suspect
that the forecast can only be changed after consultation with the
on-duty chief forecaster, who is presumably based down in Exeter at Met
Office HQ. Doing that would (a) require a show of initiative from the
presenter and (b) would take time.

Of course it's also possible that the TV forecast broadcast at 1pm might
have been recorded a few hours earlier.
--
John Hall
"Honest criticism is hard to take,
particularly from a relative, a friend,
an acquaintance, or a stranger." Franklin P Jones