i downloaded the mod, and nothing is showing up. no tornadoes, and it completely got rid of rain. there is no weather.

If this issue is resolved you may close it^^

oh and, if i join my friends server, on his it works, except for both of us the clouds are realistic pictures of cooked chickens and tornadoes are realistic potatoes that fly around, and it's just weird.

You might have aesthetic mode on, and, you and your friend were probably playing in april fools day, when clouds are chickens and potatoes. I actually couldn't find a way to disable the potatoes and chickens but I replaced the texture files. Hope this helps.