Sun Mote Copse Plasma storm.

Bronco, distracted by the heavy drops of rain that spattered down- very slowly at first, like little angry fists- didn't pick up on Towhee's discomfort and naturally settled in where he was, squinting against the flashes of light. The thunder's rumbles made his hackles lift, and he began to notice then that the sliver of time between flash and rumble had become smaller and smaller, and the rain had begun to spatter down upon them. He looked up for a moment, as though to beg the skies to hold back in their wrath, but could only catch a glimpse of the twisted burls of grey clouds above the canopy. 

He missed half of Towhee's question, but was able to figure out what she was asking, and he snorted. "Nah." He said. "I don't think I could, so I think-" He said, pausing as a flash of lightning highlighted the ebony fur of his Regent, and a rumble of thunder caused the ground beneath them to vibrate, before he continued. "You're stuck with me." As if to articulate his point, an arc of light stripped across the sky with a deafening crack and it felt as if a seam in the clouds had been split, as the rain fell suddenly and heavily.