Why does shifting the DS clock and catching a Pokemon remove overworld weather in Black/White?

Question

I found out this trick to remove weather:
You save the game in the grass where you can catch a Pokémon.
You set the clock to one month later.
After that you load the game and then you catch a Pokémon in the area you saved in.
And…Presto! The weather is gone!
This trick works with all the weather you can't use sweet scent with, and it is not permanent and the weather comes back once you capture a Pokémon or leave the area. After that you must do it again.
I use this trick so I can sweet scent. I would like to know how this trick works. I would like to know so because I wouldn't like to do something I don't understand. And please make the explanation as simple as possible.

Thanks! I appreciate your help.

Comments

yeah xD

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Did you find out anything else yet? Because now I believe your answer isn't really correct.

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I tested this on Giant Chasm in my game -- to my surprise, it's legit. This process does cause the weather to go away. It only worked after I caught a Pokemon (after moving the clock forward and loading the save file).
Seasons are out of the question, because time-based events ignore changes in the DS clock for 24 hours (and sure enough, my game loaded with Autumn both times). I also think RNG is out of the question because this works for the Giant Chasm, where fog is permanent. I think it's unlikely we'll find a confident answer to this question without knowing source code.

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It's not a bug, it's a feature.

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Its called date-skipping I don't know anything about it exept it works... But it changes weather in Sword and Shield too so it must have been around when B/W came out...

Answer 1

In Generation V, it is possible to temporarily remove overworld weather by saving the game, setting the DS's clock to one month later (to change the season), loading the save file, and catching a Pokémon without leaving the area. This works even if the area always has the same weather regardless of the season.

Source

This is a documented "feature" of Pokemon B/W games. However, no one has determined this to be intentional. Bulbapedia lists it in it's Gen V glitch list, so it's safe to assume its a glitch. It also doesn't occur in the game's sequels, which further backs that argument.

Hope I could help!

Comments

You sure this answers the question? It just documents the mechanic without explaining it. Then again, the question is also very vague about what kind of information it wants in an explanation.

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Are you gonna tell him that quote only exists on Bulbapedia because of this question?

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@Fizz, I'm not entirely sure what you mean by that. Surely this wasn't put on Bulbapedia simply because of this question? This post was made in mid-2013, and the game had already been out for two years.

To quote OP, "I would like to know how this trick works. I would like to know so because I wouldn't like to do something I don't understand. And please make the explanation as simple as possible."

Simply, it is an unintentional glitch that happens when changing seasons artificially. We can verily assume it is a glitch because it is not a feature in B2W2.

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https://bulbapedia.bulbagarden.net/w/index.php?title=Weather&diff=3383979&oldid=3367664
Sorry for telling on you sumwun, I just think this is very funny.

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LOL it is very funny. but on topic, i think this is the best answer this question is going to get.

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@Fizz, Haha I tried earlier to find when it was added to that page but couldn't seem to locate it.

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Honestly I didn't expect that paragraph to still be there (and to be backed by a different Bulbapedia page). Other Bulbapedia editors have undone a bunch of my other edits for citing unreliable sources like this one. Here's a mildly relevant xkcd: https://xkcd.com/978/