There's potential for some disruption on Sunday, with some difficult driving conditions for a time from surface spray, ice and maybe some snow.
A widespread frost will form during the evening and overnight with largely clear skies and winds falling light. A few wintry showers may persist over the Pennines. Lows -4°C.
Largely dry and cold weather is forecast with prolonged sunny periods into the afternoon. Remaining frosty over hills. Highs 4°C.
An area of rain will move eastwards, turning to snow as it hits the cold and frosty air from the previous night and early Sunday morning.
The snow is more likely to affect higher routes with lower levels only affected more locally.
Rain could fall onto frozen surfaces for a time with icy patches on some untreated roads, pavements and cycle paths.
The snow is expected to become confined to northeast Scotland later in the day as it progressively turns to rain.
This is an early warning for 6am - 6pm Sunday and is likely to change as we get closer to the event. Click here for the latest Met Office Warnings