Heavy snowfall in parts of Merseyside led to transport services being delayed and cancelled on Friday evening.
A severe weather warning was been put in place for Merseyside and Cheshire by The Highways Agency.
Merseytravel said there were 30-minute delays on rail services between Bidston and Wrexham, and several bus services were cancelled.
Some Merseyrail services were affected with delays possible on the Wirral Line, a spokesman said.
More snow is forecast for the rest of the region overnight.
The Met Office forecast snow showers would develop through the evening and continue into Saturday morning.
The Highways Agency is advising drivers to check road conditions before they travel.