Get it? Thunderstorms come from nimbus clouds.
 
But yeah, the whole idea for her came from seeing Caring Hearts and thinking that, while her design was pretty reminiscent of Rumble, Thunderlane got the shaft, so I figured I may as well give it a gander myself, also the fact that “big titty mommy gf” is kind of a played trope if you ask me, so I decided to defy everything the fandom stands for and make a flat smol tomboy mommy gf, because I’m spiteful like that.
 
Also, bonus empty space because I couldn’t come up with a third picture that involved her, Rumble, and Thunderlane.
 
Bit of extra trivia:  
. Her coat was black until she started doing her weather keeping job, since she spent basically all day over the cloud cover she was constantly under the sun, like what happens with certain breeds of black horses. Horse trivia!  
. The reason her tail is like that is because it kept getting singed in the clouds, so she just did what Thunderlane does and shaved it short.  
. She’s the one that did Rumble’s hair when he was younger. Hard to believe, I know.  
. For you folks in the >no hooves side, she was pancake flat before Thunderlane was born, but all that did was make them A cups