Don’t worry too much, spring rains in TX can be torrential and fill up everything in just a few days! It will happen.
I remember back in 2009 Lake Travis was at 60% and a big tropical storm settled over us for 3 days and dumped 10-12 inches. The lake came back up to pool within a week and has been going down every since.
You don’t remember some three years ago when we didn’t have a drop of rain for 3 months? The hills here are still nothing but dead brush where it’d take a tossed cigarette to cause a wildfire.
The science being settled, the drop in Texas lake levels can only be the direct result of global warming. That's why it's such a great theory: it explains everything.