Computer issues caused widespread flight delays and disruptions for Southwest Airlines in the Southland and beyond for the second consecutive day.

“We are in the process of resuming normal operations after a system issue this afternoon that created flight disruptions throughout our network,” Southwest Airlines posted on Twitter shortly before 1 p.m. “We know many customers still require assistance and are working to address those concerns as quickly as possible.”

The trouble began Monday night with issues with the company’s third-party weather data provider, prompting the airline to ground its jets for several hours before some flights resumed. Tuesday’s technical issue, which also briefly grounded the airline, was being investigated, according to Southwest officials.

Southwest Airlines operates in Long Beach, Burbank, Los Angeles, Orange County, Ontario, Palm Springs, San Diego and Santa Barbara within Southern California.

Kate Kuykendall, a Long Beach Airport spokeswoman, said the system outage did affect Southwest’s operations at LGB.

More than a dozen flights were disrupted as of Tuesday, Kuykendall said.

Sebastian Echeverry contributed to this report.