Before the storm started she'd convince herself that charms in transfig were a bad idea but see, now there was a puddle of water beneath her feet and her desk was soaked too. A little further over and she'd have gotten her bag soaked too. This was officially one of those desperate times call for desperate measures kinda moment that had the Gryffindor tergeo-ing the floor, her desk and even her robes for as much as that could do. Had to feel comfy while casting otherwise you'd be distracted and these types of spells called for all kinds of concentration.

Once again she fixed her attention on the cloud. It'd gone back to its original colour and she was sure she was back at square 1.

"Stiricidium Nubila!"

Aaaand the swishing motion too. Something had to give. Lex watched the cloud, noted the way the colour started blending and changing again until it'd gone grey once more. Was it darker than the first cloud? She couldn't really tell but there was no thunder so she was willing to cut her losses, even if nothing more happened--

THWACK!

"Ow!" What the kneazle was that? Lex blinked, looking to see what'd just bounced off her and hit the ground. Just then there was another thunk, this one hitting her head. Owowowowowowwow. This wasn't snow either. NOPE. "Finite! Stop! Enough!"