What are regions in .weather?

[Tom Cantine]

The command .weather gives a succinct summary of the current weather, but it gives four of them, labelled TR, TL, BR and BL. That sure sounds like abbreviations for Top Right, Top Left, etc. but I'm not certain. And also, I don't know how these regions are defined; are they fixed weather cells tied to the map, a weather pattern that moves ACROSS the map, or just a derived summary generated around the player's position?

Or is this the sort of thing an in-game scientist should explore empirically?

 

[Professor Dragon]

I think they are the four weather regions on the block surrounding the player.
I have had a search around and can't find a good explanation.

The best post I've found is this one, where we can see that the ".weather" command USED to also include things which MIGHT be co-ordinates (?) such as the "@975/976" (???).
So the command has changed in five years

 

The help gives no further command options for ".weather". So they are not something you can plug into that command.
The command "/weather" has a lot of options, but nothing that clearly matches up to the "tl tr bl br" annotation. I'm not sure what to read into that.

Maybe, it as you say, as simple as "Top Right", but "tr" is used in other commands such as World Edit for something completely different.
And the original language of the authors is not English, so who knows what it is abbrieviating?

I went into Creative and tried issuing different weather commands and . . . yup, the results of ".weather" change as well.

6 hours ago, Tom Cantine said:

Or is this the sort of thing an in-game scientist should explore empirically?

 

So, yeah. I think you might be a trail blazer here if you want to go and find out exactly what that information is telling us! 
I'd start by screenshotting the result where you are, and then fly (Creative) North, South, East and West and check that.

Professor Dragon.

EDIT
Actually, reading that other thread further, it looks like the Mechanical Power page has been edited. It was referring to possibly four adjoining regions for windspeed.

 

Edited October 28, 2025 by Professor Dragon

[Tom Cantine]

I suppose this would be another good science project in game. Thank you, the older thread contains some clues that might be useful, too. 

I won't tag this as a solution yet, because the mystery remains, but it is at least a resolution, for I can go on with resolve, knowing what I must do.

[Maelstrom]

If at first you can't fricasee, fry fry again.

Or in this case solve and re-solve.  

[Tom Cantine]

So far what I have discovered empirically, by moving about and taking .weather readings at various times and places, is that the tl, tr, bl and br percentages do indeed seem to be fixed to map coordinates. I have also noticed that the percentages always seem to add up to 100, allowing for rounding errors. (I have reached a point on my solo world where one of them is 99% and the others are all zero, but I haven't been able to get the one to 100%.)

Science marches on...