A yellow weather warning has been issued for ice and freezing temperatures across Yorkshire.
The Met Office has warned that ice, sleet and snow showers will move through the area tonight (Friday) and into Saturday.
Ice patches are likely to form on ungritted surfaces, as temperatures fall.
A spokesman for the Met Office said: "A band of rain, sleet and snow showers will move from the northwest to southeast across the yellow area through Friday, clearing during the early hours of Saturday, followed by further wintry showers.
"Icy patches are likely to form on untreated surfaces as temperatures fall. 1-2 cm snow may accumulate above about 200 m by Saturday morning with with 2-5 cm possible above 300m.
"Small amounts of snow are possible at low levels inland, mostly in the north."