A lightning strike hit Duquesne Light’s power distribution infrastructure around 3:30 p.m. on Thursday, causing a power outage at Pittsburgh International Airport. The airport’s microgrid helped restore power more quickly and potentially prevented a significantly longer outage. Power was partially restored within an hour. The air traffic control tower maintained power throughout the incident, and planes were able to take off and land without any cancellations, though some flights were delayed. According to wpxi.com, the checkpoint at the airport was briefly closed during the outage, and travelers reported an alarm notification with flashing lights. Airport officials said systems were back to normal after 5:40 p.m., according to wpxi.com. Triblive.com reported that the lightning strike caused a power surge that disabled both the airport’s main electrical supply and its backup microgrid, and airport spokesman Bob Kerlik said systems are coming back online and flights are departing and arriving. CBS News reported that full power was restored in under 90 minutes. A wind gust of 66 mph was recorded at Pittsburgh International Airport on Friday, and the storm peaked that evening. Tens of thousands of residents remained without power as of Sunday morning, according to pennwatch.org.