On Aug 24, 6:40*pm, Weatherlawyer wrote:
On Aug 24, 6:51*am, wrote:



*What is Vorticity and why it is a factor when considering a forecast?

It's the amount of cuclonic behaviour or for that matter
anticycloninc. Vortexes define the degree of positivity of the North
Atlantic for one thing. It is pretty negative at the moment with weak
KLows and Highs.

You will notice the 1016 Mb line at sea level is elliptical on
occasions when there is little or no vorticity.

My opinion of course is not worth as much as you paid for it.

And I don't know what I am talking about.

When that 1016 mb at surface level is an elipse, be sure there are
tropical storms or tornadoes in the USA brewing. And the met men will
be looking at upper air develpments to see it first.

I think it can give nearly a week's warning. Not that I know how.