A wintry blast brought a dusting of snow to many parts of the UK on Saturday morning but forecasters have warned more substantial falls are on their way for northern parts, including blizzards.
Rain showers turned to snow in parts of the North West, the West Midlands and Scotland.
Met Office forecasters said it had been difficult to predict where the rain would turn into snow, especially as there was also hail among the precipitation mix in many locations.
And they said most of the accumulations were likely to disappear during the day as the temperatures rise to a maximum of around 7C (44.6F) in some places.
But Kirk Waite, from the Met Office, warned of freezing temperatures tonight followed by snow tomorrow morning on higher ground in Scotland and along the Pennines.
And the Environment Agency issued flood alerts for parts of Lancashire on Saturday, including the coast at Sunderland and Overton and the Wyre estuary at Hambleton.