On Sep 14, 5:17*pm, Paul Hyett wrote:

Makes you wonder just what it would take for a Red warning, though!

The last time I saw a red warning was one morning before Christmas
where it snowed very heavily for 1-2 hours in London - really rapid
accumulating stuff - I think it must have snowed about 4 inches in an
hour IIRC. It made for a wonderful pub crawl round Hampstead that
afternoon but snow was settling readily on even main roads. I recall
hearing sirens everywhere at one point dealing with crashes and
thinking that the "red" was merited and the travelling only if
necessary mantra probably held true this time around.

Going back to ex-Katia, it turned out a surprisingly predictable event
in the end. Maybe the added resolution of global models these days
copes well the extra-tropical transition process.

Richard