On Monday, 23 March 2015 08:48:43 UTC, wrote:

I'm sure that all your advice is well intentioned but I fail to see how a North Atlantic surface pressure chart can help you forecast tornado's.

You asked me how I could possibly link world patterns with tornadoes. Sorry about the delay. I have yet to find the 2009 run of tornadoes/North Atlantic charts that will demonstrate the answer perfectly.

Improbable as it seemed a few weeks ago, the fact is that someone was already doing it in the 1920's. In fact the Norwegians were working on it at least a century before anyone gave Rossby any money to look the other way:

https://en.wikipedia.org/wiki/Carl_Anton_Bjerknes

To date I have not seen the evolution of gravity/planetary waves demonstrated at sea level; yet computer models demonstrate very clearly that they do exist:

https://weatherlawyer.files.wordpres...precip-120.png

The problem is that in acceptable circles it is not fashionable to look closely at the wrong sort of things. You can't really blame experts. If they wanted to wash they heads in **** they could read dawlish stuff all day long and never get anywhere.

(That is the problem with information. The WWW. is an honey pot for the secret police, thank goodness but it will give rise to WW terror before anyone stops them getting out of it.)

So at the moment we are stuck with whatever choices we chose to choose:
https://en.wikipedia.org/wiki/File:Airmassesorigin.png
I don't want to keep banging a stable door that is already wide open and I have no idea if that will wake up the donkeys but one has to try:

This set-up took place with the equinox and such events are precursors to tornadoes in the USA:
https://weatherlawyer.wordpress.com/.../encapsulated/