When LHR obliges airlines to cancel flights on
forecast, rather than actual weather, the airline should contact all affected passengers in sufficient time for them to consider all alternative options.
Today germanwings cancelled its afternoon flight 4U464 to LHR - but I gather it did so yesterday! I was on that flight, but didn't find out until I arrived at the airport - it was then too late to find any alternative except a thoroughly inconvenient 3.5 hours delay. I wasn't even offered a meal voucher, let alone any more tangible compensation.
Heathrow isn't closed - it's just that some passengers are clearly more important than others
I do wish germanwings / eurowings / Lufthansa would offer a direct Birmingham to Köln service and avoid that wretched place west of Hounslow!