Paul Hyett wrote:


What gets me is not so much the conditions, but that they've arrived on
what is basically a NW airmass.

Those are *supposed* to be relatively cool & fresh...
--
Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me)

You can't call it a NW airmass simply because the wind is
NW'ly. This air is of mid-Atlantic origin and has turned SE'wards over
the UK. In old terminology it's considerably closer to Tropical
Maritime than Polar Maritime.

Tudor Hughes, Warlingham, Surrey.