On Wednesday, 30 March 2016 18:42:56 UTC+1, N_Cook wrote:
On 30/03/2016 17:18, Dave Ludlow wrote:
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.


Not surprising, ABP/Southampton Docks Board records are not included on
this site
http://www.surgewatch.org/sites/get/
embarrassing as sited at the NOC Southampton.
Somewhere on that site it explains why, or used to , not found just now.
"A particular issue with older events are consistency issues with the
vertical datum used at that time, in relation to modern datums. These are
reasons we chose to leave this type of addition to a subsequent stage. "
and
"These tide gauges are operated for example by port authorities (such as
at Southampton where a new digitised record has been extended back
to 1935). However, because they do not form part of the National
Network, such data can be of lower quality and require extensive and
time-consuming quality control measures. That is the main reason we did
not include this data at this stage."

It is a chance to experience alternatives as the volcanic activity in the background peaks tom... later today. And then be followed with the sob of line-storms.
Should be fun.