Bernard Burton wrote:

An anomalous negative pressure pulse was observed at Wokingham near 0730
GMT on 14th December 2013. Graphs of pressure and wind, and a brief
description, can be seen at:

http://www.woksat.info/wwp/ppulse_141213.gif



FWIW I observed the same approximately 15 miles south of you.


07:00:00 1024.8
07:01:00 1024.8
07:02:00 1024.8
07:03:00 1024.8
07:04:00 1024.8
07:05:00 1024.7
07:06:00 1024.7
07:07:00 1024.8
07:08:00 1024.7
07:09:00 1024.8
07:10:00 1024.8
07:11:00 1024.7
07:12:00 1024.7
07:13:00 1024.7
07:14:00 1024.7
07:15:00 1024.7
07:16:00 1024.6
07:17:00 1024.6
07:18:00 1024.5
07:19:00 1024.4
07:20:00 1024.3
07:21:00 1024.3
07:22:00 1024.2
07:23:00 1024.2
07:24:00 1024.0
07:25:00 1023.9
07:26:00 1023.9
07:27:00 1023.8
07:28:00 1023.7
07:29:00 1023.7
07:30:00 1023.7
07:31:00 1023.8
07:32:00 1023.9
07:33:00 1023.9
07:34:00 1023.9
07:35:00 1023.8
07:36:00 1023.8
07:37:00 1023.9
07:38:00 1024.0
07:39:00 1024.0
07:40:00 1023.9
07:41:00 1023.8
07:42:00 1023.8
07:43:00 1023.8
07:44:00 1023.9
07:45:00 1024.1
07:46:00 1024.2
07:47:00 1024.3
07:48:00 1024.4
07:49:00 1024.4
07:50:00 1024.4
07:51:00 1024.4
07:52:00 1024.5
07:53:00 1024.5
07:54:00 1024.6
07:55:00 1024.7
07:56:00 1024.7
07:57:00 1024.8
07:58:00 1024.9
07:59:00 1024.9
08:00:00 1025.0


--
Brian Wakem
Lower Bourne, Farnham, Surrey
http://www.brianwakem.co.uk/weather/latest_obs.txt
http://www.brianwakem.co.uk/weather/...am%20Vale.html