"Dylan Smith" wrote in message
...
OK, I've never seen this before.

Take a look at the synoptic chart I've saved at
http://www.alioth.net/tmp/fronts.gif

There is a cold front, just south west of Ireland. The 'sharks teeth'
are outlines, rather than filled in. The other week I saw a warm front
drawn like this. What's the difference between this and a 'normal' cold
front?


Hmmm, do a google for "occluded front" and see if that answers your
question.