Looks to be quite a few delays and cancellations of flights at BFS today /this evening.
There has been a lightning strike on ATC control systems at Luton, during a period of severe weather,moving NW across the country.
https://www.bbc.co.uk/news/articles/c5y4mxy3xlpo https://www.belfastairport.com/flights/arrivals
https://www.belfastairport.com/flights/departures