Rapid icing on the pavement one would have thought rather than deep cover, thats far more treacherous and more difficult to deals with .
Airport now open again most diverts have returned , however some short hauls cancelled and Swiss going from Birmingham straight back to Zurich empty as I type this.
The Singapore flight that went down to Roissy was the inbound from Houston whilst the inbound from Singapore dashed and splashed at Heathrow
Both flew over my house in North West London a few minutes apart one at 7000 feet turning base leg and the other at about 31000 feet about to start descent towards the coast and Rouen