The snow is set to make a comeback, but there is lots of uncertainty as to how much, where and when.
Where does the snow come from?
The cold air has been with us all week, with weak weather fronts making progress, bringing patchy rain, sleet and snow.
Today and tomorrow we will see much the same. with a change on Sunday, as a southeasterly wind drags cold air from the near continent.
This will be followed by a deepening low pressure with an active weather front arriving from the west, which will collide into the cold air, creating a recipe for snowfall.
The weather change is currently balanced on a knife edge, if the low is further south, the easterly undercut will increase and the precipitation will turn to snow more readily, vice versa if the low is further north.
The closer we get, the warning areas will shrink and are likely to be upgraded.
What can we expect this weekend?
A cloudy and dull day.
A weather front moves in from the west, spreading to everyone throughout the day, bringing outbreaks of rain.
Heavier bursts from the midlands into northern England will see it turning to sleet and hill snow.
For most of us there will be a risk of snow, through the early hours a more significant weather front arrives from the west, so for western areas we start with rain and hill snow.
Through the morning as the front progresses northeast and bumps into the cold air, snow develops over much of Scotland, northern and eastern England with rain elsewhere.
By the afternoon the front covers most of the UK and the cold undercut causes the rain to turn to snow for the Midland and Wales.
Up to ten centimetres is forecast.
Western areas (Northern Ireland, SW England, W Wales and NW Scotland) are most likely to stay as rain, until overnight.
The winds will pickup giving a marked wind chill.
Sunday night and Monday morning, will see the worst of the snow, as it becomes concentrated to the southern half of the UK, including London where we are exposedto the driving winds.
Potentially making for a horrendous morning rush hour.
Tuesday and Wednesday, high pressure builds in, meaning the weather settles down.
The snow eases and clears, the winds fall light.
Sunnydays and frosty nights return.
Thereafter more unsettled and less cold.