On Sun, 23 Nov 2003 11:51:15 +0000, Norman Lynagh wrote in

snip
The min of -9c at Carlisle looks a bit suspicious to me.

The hourly temperatures reported were

2300 1.7c
0000 1.8c
0100 0.2c
0200 -0.5c
0300 -1.9c
0400 -0.7c
0500 -5.4c
snip

Very suspicious as you write, Norman. Assuming conditions were fairly
constant through the night (cloud cover, wind, etc.) it is most improbable
there was a drop of 4.7 deg C between 0400 and 0500 - a time in the night
when the rate of cooling has usually reached its minimum.

--
Mike Coleraine posted to uk.sci.weather 23/11/2003 13:30:09 UTC
My aurora images here http://www.mtullett.plus.com/29a-oct and
http://www.mtullett.plus.com/20-nov/