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 )


At my station the pressure dropped 24mb in 9hrs 28mins.

2016-03-27 19:38:00 998.1mb
2016-03-28 05:06:00 974.1mb



--
Brian Wakem
Lower Bourne, Farnham, Surrey
http://www.brianwakem.co.uk/weather