Col wrote:
"Les Crossan" wrote in message
. uk...

If this comes off it's going to get a tad scary.... thunder almost
certain along with hail, gusty winds, torrential rain, tornadoes.....!!



Cape/Lifted Index.

Am I right in thinking that this is in simplistic terms, a measure
of atmospheric instability?

Col

A bit more about it here...

http://homepage.ntlworld.com/booty.w...opics.htm#CAPE

--
Keith (Southend)

'Weather Home & Abroad'
http://www.southendweather.net