SWBKCB
Unless I'm mistaken Flybe diversions landed in cat 2 conditions recently at Bournemouth!
That is 350m RVR or above,Unless I'm mistaken the minima at Southampton is 800 mtrs RVR,which isn't even Cat 1 minima(550 RVR) this due to local restrictions including buildings.Runway approach lighting falls short of cat 1, improvement s here and tree/building removal would improve minima.