"Rob" wrote in message
...

Agreed.

Rant away, Norman, I think you've hit the nail on the head.

Well they have to plump for the 'most likely sceanario' to some
extent, giving a whole range of probabilities for all the different
areas and heights would take forever.
If I rant it's when they 'cry wolf'.

Col
--
Bolton, Lancashire.
160m asl.