Delta Air Lines Inc. said late Saturday it was resuming normal operations at its Atlanta hub, after a snowstorm forced it to cancel about 375 flights in and out of there earlier in the day. The cancellations came on top of more than 1,000 flights scrubbed on Friday because of the early-season snowstorm. The airline said winter weather in the south was tapering off, but that de-icing was underway in the Northeast, where additional snowstorms were settling in. To minimize delays, Delta said it would restrict unaccompanied minors from connecting to other flights in Atlanta through Saturday, and at Boston and New York-area airports through Sunday. The airline said it was issuing waivers for customers ticketed to, from or through Atlanta through Sunday, and directed them to delta.com to change travel plans. The waivers allow a one-time change to itineraries with no fee. Refunds may also be requested.  Atlanta’s Hartsfield-Jackson International Airport was experiencing the highest number of cancellations in the U.S. on Saturday, followed by Baltimore/Washington International, Newark Liberty International and Boston Logan International, according to tracking service FlightAware.com. Southwest Airlines Co. canceled 146 flights, saying on its website that the storm is affecting service at airports across the Northeast. The storm packed a wallop in the Deep South from Mississippi to northern Florida, and even caused flurries in New Orleans. More than a quarter-million electrical customers across the South lacked power, the Associated Press reported. Up to six inches (15 centimeters) of snow was expected in the New York area, falling into early Sunday morning.