Continuous snow showers until 1300h
Unable to keep runway clear of contamination due to continuous snow showers
Contaminated runway (10mm of slush) which affects take off performance
Strong, gusting northerly crosswind which, combined with contaminated runway meant take-off and landings were out of limits for much of the morning due reduced crosswind limits for, in particular, departing aircraft.
A simplified explanation - does that answer your criticism?