Hi! I'm really interested in this mod specifically but I have yet to download. I host a modded server (around 110 mods) with a group of friends and plan on having a "Winter Update" with quests and whatnot for the holiday season when it rolls around every year. I only ask this question because I would like to remove it after the real-life winter season is over and have the landscape in the world return to normal. Is this what happens without the mod? And/or will this cause any lasting issues for the world or for other mods that you know of? I looked at a couple other winter mods before this one and I think this looks the best, plus having the fog and snowy mobs everywhere. Please let me know!

Well yes,

• This mod will not apply retroactively. Already generated chunks will only have the various snowy effects, none of the snowy blocks.
• Any blocks added by this mod and placed in new chunks (snowy dirt, snowy logs, snowy leaves, etc.) are going to be removed when you remove this mod.

If you still want to use it, then you could do a "find / replace" both before and after as all this mods blocks (e.g. "Snowy Birch Log") are 1-1 mappable to vanilla blocks.

But that sounds like a lot of work and I generally wouldn't recommend using this for this purpose, no.

Okay thank you for the response. Just a couple more questions. Will the "snowy effects" that happen in generated chunks still accumulate surface snow on the ground like a normal vanilla snowstorm/blizzard? And then let's say if I wanted the block replacements from the mod to not happen but still get the snowy effects, would that be possible via a config or something or no?

Primal Winter does the equivalent of /gamerule doWeatherCycle false and /weather thunder to enable storms. Everything related to that (fog, snow accumulation) is predicate on the (vanilla) weather handling.

And then let's say if I wanted the block replacements from the mod to not happen but still get the snowy effects, would that be possible

Don't generate any new chunks with this mod. (pre generate + world border). Otherwise No.

Thanks for the information and help!