JPG wrote:
With virtually a flat pressure area across the British Isles about now
and with the pressure within a gnat's crotchet of 1021 HPa / mB, today
would be a good day to set the hall barometer.

Mine is 1022 mb and this looks the same for most of western England,
Wales and Scotland. To the west of me, it is 1023.

http://www.xcweather.co.uk/

--
Howard Neil
(western end of the Brecon Beacons National Park, at 235 metres asl)