Pilots from Southwest Airlines have warned that additional flight problems could occur as the company faces fatigue and other struggles among its staff members. Southwest Airlines canceled more than 1,800 flights over the weekend. The Southwest Airlines Pilots Association, representing the company’s 9,000 pilots, blamed company management concerning the issues. “We’re going to see it next weekend or the holidays or whenever a thunderstorm pops up in Mexico,” Capt. Casey Murray told The Wall Street Journal in a Monday interview. On Saturday, the company announced on Twitter, “ATC issues and disruptive weather have resulted in a high volume of cancellations throughout the weekend while we work to recover our operation. We appreciate your patience as we accommodate affected Customers, and Customer Service wait times are longer than usual.” Airlines cancellations continued Monday and Tuesday, with the airline releasing an update statement on Tuesday to address the ongoing problems. “As we complete efforts …