On Wed, 30 Mar 2016 11:56:34 +0100, N_Cook wrote:

Then 2 such events in one month?
If jetstream immediately to the south of a low that deepens by =24mb in
24 hours sufficiently defined such an event.
Local weather station to me, Southampton Docks
www.sotonmet.co.uk/
archives bit on there for 27/28 March shows a minimum of 967.0mB ,
dropped 26.8mB in 24 hours (may be GMT/BST confusion )

What Brian and Tudor said, but I should mention that the Southampton
Docks site linked is currently reporting atmospheric pressure about 7
mb too low, and was on Monday too.

It's currently 1009 mb here, at Calshot and at Southampton and Hurn
airports too... so the 1002 mb reported by Southampton Docks is
clearly wrong.

--
Dave
Fareham (W)