OK I actually just got a bit too into this and made something that basically (I presume) uses the same techniques. It’s still not as awesome as I couldn’t afford to waste too much time, but you can use this preview link to look at the interactions I used to achieve it.
(Hover over the cloud!)
https://preview.webflow.com/preview/rainingallday?preview=3885b41650a48ab9e069cc0fd4138a27