Network Rail is restricting trains operating north of Royston this evening due to a forecast for heavy snow.

The changes to Great Northern services will see trains north of Royston towards Cambridge and King’s Lynn finishing early this evening and starting up later than usual tomorrow morning.

Fewer trains will run between King’s Lynn and Cambridge in the morning and evening peaks.

There will be a reduction of two trains per hour between King’s Cross and Ely via Cambridge throughout Tuesday.

This could all have a knock-on effect of delays and cancellations on other parts of the network as trains and drivers will be out of position.

A spokesperson for Great Northern said: “We urge passengers travelling to and from stations north of Royston on our Cambridge and King’s Lynn routes to check before they travel and start their journeys earlier. Do not rely on the last trains home to this area which will leave earlier and will be very busy.

“The Peterborough route and Hertford suburban services are unaffected but there are also likely to be short notice alterations and cancellations due to drivers and trains being out of position for the normal service.”

For more information, visit www.greatnorthernrail.com.

This evening:

Late night trains from King’s Cross to stations north of Royston towards Cambridge and King’s Lynn will be altered as follows:

22:14 King’s Cross to King’s Lynn: this is the last train to King’s Lynn

22:44 King’s Cross to Ely: terminates early, at Cambridge (this is a non-stopping service)

22:52 King’s Cross to Cambridge will run as normal – this will be the last direct stopping service of the evening north of Royston

23:04 King’s Cross to Cambridge: terminates early, at Royston

23:14 King’s Cross to King’s Lynn: terminates early, at Cambridge.

23:44 King’s Cross to Cambridge: terminates early, at Royston

00:04 King’s Cross – Cambridge: terminates early, at Royston

Tuesday:

Great Northern will not be allowed to run passenger services north of Royston until 6am.

The following changes will apply:

4:54am King’s Lynn to King’s Cross: cancelled

4:54am Greater Anglia service from King’s Lynn: cancelled

5:51 King’s Lynn to King’s Cross: will run at 6am

5:14 Cambridge to King’s Cross: starts from Royston

5:35 Cambridge to King’s Cross: starts from Royston

6:14 Cambridge to King’s Cross: cancelled

Other services in the peak between King’s Lynn and Cambridge will run hourly instead of half hourly.

Throughout the day, the Cambridge Flyers between King’s Cross and Ely (XX14 from KGX and XX58 from Ely) will be cancelled.

There is likely to be an early close-down of services north of Royston on Tuesday, possibly earlier than Monday. Great Northern will update its website tomorrow.