We were stuck in MCO last week due to the winter storm that hit Philly. W were supposed to fly out late Weds. nite but Southwest had called and told us that our late flight was going to be canceled and asked if we wanted to move up to an earlier flight to try and beat the storm. We took a 3:30pm flight. Got to the airport and tried to curbside check-in and as they were printing our boarding passes that flight got canceled. We rebooked for the next morning, got to the airport, got checked in, got in line for "A" boarding, only to get told that that flight, too, was canceled. UGH! So anyway, southwest was great, they gave us a voucher to use for 40% off certain hotels and rebooked us for the next day out.
Southwest will work with you to get you out as soon as possible! Hopefully it works out!