Chief forecasters statement in the warning....
Details remain uncertain regarding the extent and amount of snowfall, in particular the northward extent of snowfall into northern England (indeed some areas may miss the snow altogether). Therefore it is likely that this warning will be updated in the light of new information and may be upgraded to Amber should confidence increase sufficiently.
In other words some people will get a snowfest, but east Manchester will miss out.
Don't be greedy, I have no snow forecast, just dark clouds. JEALOUS!