The Memphis ARTCC went to ATC 0 (no service) for a short time this afternoon for a COVID-related cleaning. Here, we view the impact on traffic above FL180 from 18:00-20:00 UTC. https://t.co/oXnYAOI5K5 h/t @ethanklapper pic.twitter.com/tcKGkxYbE7
— Flightradar24 (@flightradar24) December 21, 2020
