I may have been wrong about Renopila not having a practical use. Earlier today, my furry new companion started bouncing around so excitedly that I couldn't calm her down, and then soon enough it started raining.
I brushed that off as a coincidence, but soon after filling my waterskins and setting off once more, she started acting skittish. I decided to find shelter just in case, and within minutes light rainfall had turned into an electrical storm.
I'll need more evidence to draw any firm conclusions of course, but I wouldn't mind having a fuzzy little weather radar with me.
You know... It's a little on the nose, but Radar's not a bad name.