Dear All,

Does anybody know the most rapid recorded pressure rise during the
passage of an extratropical system? I just tried googling with little
success, I'm sure we've talked about it before on here.

"Lothar" in France had rises of 27mb/3hr - but this appears to be
surpassed by the "Greenhouse Low" - an extraordinary low that hit
Iceland in 1991 with sustained winds of 57m/s recorded and pressure
rises of 30.4mb/3hrs. I'd doubt the validity of those gusts!!

Anyhow - does anybody know of 3-hour pressure rises bigger than these?

Cheers,
Richard

p.s. If anyone wants to read more about this:

http://cat.inist.fr/?aModele=afficheN&cpsidt=2917156 - abstract but no
content
http://folk.uio.no/jegill/publications.html - "Potential
vorticity-based interpretation of the evolution of 'The Greenhouse
Low', 2-3 February 1991" - probably a bit more technical !