[moate]

Good point, but OP didn't mention if this was an isolated incident (the hot summer that burns off more cap snow which will never get replenished) or a sustained thing (this used to be a 4 foot stream, but for the last 5 years it's been 100 feet wide instead). Who knows what's actually going on in this story.

I'm not saying it's anything one way or the other since this is a hyper-empirical piece of data to be working off of. Based on context I'm assuming OP meant to imply that this is a sign of rising water levels, but I was just posting some alternate theories.

[zachrose]

Yes, hyper-empirical is exactly right. I totally don't know what caused the bigger creek in Big Bend or how that relates to the larger climate. I was hoping Hacker News would chime in with exactly this kind of analysis.