I'm sorry but IST is a joke when it comes to snow. Doing an approach a couple of years ago, they declared braking action poor; I said I couldn't land in that; then they said - 'sorry - mistake, actually its medium poor'; so I landed and it was like a bloody skating rink with minimal, if any snow clearance, and the taxiways were almost indiscernable.
Then on the taxi in they asked me to tell them what the braking action was!
