A number of extra flights to/from Modlin have been scheduled over the next few days to accommodate those who have been effected by the weather over the past few days as there was not enough free space on existing flights to get everyone on a flight before Christmas.
Amongst others, it means in the morning from Dub there will be two flights to Modlin leaving within 10 minutes of each other.
THe extra DUB ones were planned weeks before any issues with weather, just usual extra Christmas flights by FR just happens they are so close together with the way the shcedule worked out.