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.[1] Since this restaurant always remains open (except in extreme circumstances), 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.[2][3] It was coined by former administrator Craig Fugate of the Federal Emergency Management Agency (FEMA).[4] The metric is unofficially[2][5] used by FEMA to inform disaster response.[6][7]