I could imagine that the power outage would also have taken out the cell repeaters and Wi-Fi routers inside the Superdome. Everyone there must have been frantically trying to get information from the outside, placing a strain on the nearest tower.
said by Ars :When the lights went off at the Super Bowl during the big game's infamous power outage, not everything went offline.
The stadium-wide Wi-Fi network kept workingor at least it did in some areas and for part of the outage. But it was a very old-school technologya landline phonethat saved the day for Andrew Stern, a broadcast engineer for a San Francisco radio station.