Texans use whataburger app to track power outages

Reminds me of https://en.m.wikipedia.org/wiki/Waffle_House_Index

> The Waffle House Index is a metric named after the ubiquitous Southern US restaurant chain Waffle House known for its 24-hour, 365-day service. Since this restaurant always remains open, it has given rise to an informal but useful metric to determine the severity of a storm and the likely scale of assistance required for disaster recovery.[1][2] It was coined by former administrator Craig Fugate of the Federal Emergency Management Agency (FEMA).[3] The metric is unofficially[1][4] used by FEMA to inform disaster response

A bit like hedge funds using parking lot imagery and the line to estimate demand.