Alastair wrote:


I am doing the Open University "Understanding the Weather "course.
They say that it is difficult for forecasters to identify the position
of fronts from isobaric charts, but there is a kink in the isobars at
the fronts. They are straight lines in the warm sector, but are
curved in the rest of the cyclone/depression. If the pressure was
dropping as the cold front approached then that may explain the rapid
rise when it arrived.

HTH,

Cheers, Alastair.

It certainly does help, Alastair! Thanks for that. I was thinking of
doing that course: maybe now I will.

Hugh

--

Hugh Newbury

www.evershot-weather.org