Rail passengers are experiencing delays of up to 25 minutes on journeys between Carlisle and Lancaster this morning.
Virgin Trains and TransPennine Express are having to run at reduced speeds on the line between Oxenholme Lake District and Penrith North Lakes.
Disruption is expected until 12pm today.
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Trains are at a standstill on the Cumbrian Coast line while safety checks are carried out on the track.
Train operator Northern Rail says delays are expected along the length of the line between Carlisle and Barrow until around 1pm.
There are major delays to trains arriving and departing Carlisle station due to signalling problems between Glasgow and Lockerbie.
Virgin trains say they have requested coaches to replace services.
Rail services between Carlisle and Lockerbie are delayed, because of a fault with the signalling system between Carstairs and Lockerbie.
The fault is thought to have been caused by the bad weather sweeping through the region.
Disruption is expected to continue until around 12pm.
People travelling south of Cumbria by train are facing delays of up to an hour.
It's due to a train fault between Lancaster and Preston, and southbound services are expected to be affected until around 12pm.
Replacement buses are conveying passengers between Preston and Lancaster in both directions until further notice.
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