On Jun 6, 9:33 pm, wrote:
Extra-tropical cyclones: severe cyclonic storm that tracks across the
North Atlantic towards northwestern Europe in the winter months.

However, I'm not looking to do anything very complicated.....just want
to have a simple model (maybe non-homogenous Poisson) which reflects
the fact that these storms tend to occur in clusters.

There is an archive of sea level pressure maps on WetterZentrale.
It's a pain in the bum to read. It could do with a batch file or
whatever they call them to open a set of them -say a weeks worth, at a
time.

No link, sorry. If I could read German I'd be there now.
They also do a DVD of upper atmosphere stuff. I wonder if they do one
for the sea levels.