Drivers are being urged to take extra care in Calderdale after heavy snow overnight.
Up to 10cm is understood to have fallen, causing hazardous driving conditions on some roads.
Difficult driving conditions are being reported on the M62, especially around junction 22 at Rishworth.
A car lost control in the snow there at around 7.30pm last night. No one is thought to have been seriously injured.
Lorries are understood to have been abandoned on the motorway because of the snow last night.
Sergeant Adrian Newman, from the Western Area Roads Policing Team which covers Calderdale, said: “We’d ask drivers to make sure their vehicles are clear of any snow and ice before they set off, to allow extra time for their journeys, take extra care and be aware that stopping distances will be greater so to leave bigger gaps.”
The Met Office has issued a yellow warning for ice in Calderdale this morning but later today the snow is expected to start to thaw as temperatures reach around 3 degrees celsius.
It will become cloudier during the afternoon, with rain arriving in the evening.
Tomorrow heavy rain and strong winds are forecast.