Late on Tuesday evening the Cork RVR went down below CATII minima to 250 metres. Two Aer Arann flights, the RE637 from Dublin and the RE304 from Belfast both had to divert to Shannon. Two Aer Lingus flights that took up the hold at Cork both ended up also diverting to Shannon but, thankfully, after going to snn the Cork RVR went back up to 400 metres and after refuelling both Cork bound flights returned once more to Cork.
Some time after the Cork RVR went back down to 250 metres again! Got to get CATIIIA for Cork Airport, just got to!