When Hurricane Beryl struck Texas last week it left nearly 2 million Houston area residents and businesses without power. Local power company Center Point Energy's online power outage map has been unavailable since May. Social media user BBQBryan noted that Texas based Whataburger's app could be used as a de-facto power outage tracker.
https://twitter.com/BBQBryan/status/1810509150842974308
The orange W's indicate an open location while a gray W means closed. Whataburger is open 24 hours so gray means a likely power outage. Here is a more complete area map from July 9th via KERA.
I'm a little late to the game here so when I checked their web site a week later (I don't have the app because I live in a Whataburger desert) the Houston area looked completely open.
Remind me of the Waffle House Index, which observes that Waffle House has really solid emergency preparedness planning, and that their status can be used to gauge the severity of a natural disaster in a specific area! https://en.wikipedia.org/wiki/Waffle_House_Index