A weather warning has been issued this morning, with snow forecast for South Yorkshire.
The Met Office is warning that heavy rain this morning is likely to turn to snow in places.
Snowfall of 2 - 5cm could occur in places, with as much as 10cm on higher ground.
A Met Office spokesman said: "This will bring a risk of difficult travel conditions for the morning peak travel period including slower than normal journey times, particularly for some cross-Pennine routes. Surface water and slush may cause problems elsewhere
"The snow should ease from the south during the morning."