On 22/11/2015 17:42, Simon S wrote:

It was just said jokinly in response to the waffle being spoke by one of the most
uninformed presenters.

I'll guess that was Roger Johnson rather than Naga Munchetty - he's a
sports reporter, so isn't likely to know much about the weather. (Naga's
main field is business news, but she has much more experience on
Breakfast than Johnson, who only fills in occasionally at weekends).
It's also part of their job to ask seemingly obvious questions to
elicit more details for the poor ill-informed viewers.

I believe he had already explained that it was milder atlantic air being drawn
twards the UK by a very large area of high pressure.

The studio presenters may not have been listening or even present during
his explanations. When 'experts' take over for weather, sport
or business the regular hosts are not required to pay attention.
It's often a time for food, drink or comfort breaks.

I think if he had explained about potential temperatures he would have made their
heads explode.

Well that would make everyone's heads explode, since everyone else
watching is also uninformed. The few who do understood the topic would
not be likely to be getting their weather info from the BBC.