Overnight snowfall is causing minor traffic disruption in Bradford today.
Bradford Council said its gritters had been out on primary routes in the city from around 3.30am this morning as rain and sleet turned to snow.
So far, no major incidents have been reported, but visability is reduced on the M62 due to fog.
Passengers at Leeds Bradford Airport are being warned to allow extra time for their journeys and to check the status of their flight with their airline or tour operator before travelling to the airport.
No school closures have been reported in the Bradford area.
The Met Office has upgraded its “cold weather action” warning to level three - one underneath a national emergency - for all of England, warning winter weather could increase the health risks to vulnerable patients and disrupt the delivery of services.
Andy Page, Met Office chief forecaster, said: “We expect rain, sleet and snow to affect many parts of the UK over the next day or so, with eastern areas of Britain seeing the most snowfall. With some very low temperatures overnight we expect ice to cause some impacts too and people should be aware that there is likely to be some travel disruption.”