EGPH - Wednesday 19th December

[Munnyspinner]

What was going on yesterday at Edinburgh?
About lunchtime there was a EZ A 319 and BMI Embraer 145 Holding over the city.
Initially this looked like a missed approach on RW06 but that would have resulted normally in a left tun over the forth to rejoin from the west.
Can anyone tell me what was up?

[Bagheera]

Aircraft were holding at the EDN whilst the runway was switched to facilitate IRVR touchdown improvement.

[TheFox]

If it was before two it was more likely that it was because the runway was closed due FOD.