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?

More help here if I am right. (Negative impact if I am wrong but it will only be wrong if something else occurs too.)

Time of writing: 27 March 2015.

There are three cyclones in a row across the bottom right hand quadrant of the first chart on he
http://www.bom.gov.au/australia/char...Refresh+ View

Such a system indicates either tornadoes or volcanoes. There are two immediate differences that are striking.
1. There is an air gap between the cyclones and the coast of Antarctica.
2. They are in the wrong quadrant for volcanic excesses.

The runs normally start out as small and (for all I know) intense cyclones (the equivalent of white squalls in equatorial regions.) And of course they are accompanied by reports of very cold weather. But I don't recall incidents of cold weather occurring with tornado spells. Except that they did for that system a few days back, didn't they.

I have no idea why a col separates the system when tornadoes are involved/don't when there are volcanic eruptions. And I don't know what the reason is for the choice of quadrant. (I am not even sure that last subtlety exists outside my tiny.)

How hard is all that to grasp I wonder?
And can I choose my words more carefully without resorting to babyspeak?