A Met Office weather warning for snow and ice in Lincoln this weekend has been increased in severity from yellow to amber.
As well as a yellow warning for sleet and snow showers from around 6pm on Friday, March 16 through to Sunday, amber warnings have now been issued for Saturday and Sunday.
The amber alert which covers Lincolnshire and parts of Yorkshire, is in place from 4pm on Saturday, March 17 until 9am on Sunday.
Met Office forecasters said: “Snow showers are expected to become more frequent through Saturday evening and night with icy patches also developing on some untreated roads, pavements and cycle paths.
“Strong easterly winds will lead to some temporary blizzard conditions and drifting snow.
“Travel delays on roads are likely, stranding some vehicles and passengers.
“Some cancellations to rail and air travel are likely.
“There is a chance some rural communities will be cut off. Some injuries from slips and falls on icy surfaces are expected.”
Lincoln 10K latest
Organisers of this weekend’s Lincoln 10K road race have said they are monitoring the forecast and will be notifying participants of any changes to the event.