At about 0645 BST this morning the pressure fell by 5.5mb inside the hour.
This is shown on my barograph and also on my AWS Vantage pro, so there is no
instrument failure. The pressure has now recovered, but the change on my
barograph looks like some major feature has passed through. I have not seen
a pressure change of this magnitude in such a short time scale- I can only
assume it was a storm cell that was very close by.

Rob
Farsley
near Leeds