High winds

Strong winds can blow trees into infrastructure, damaging the overhead lines that power electric trains. The winds can mean it’s unsafe to carry out repairs at height – or with certain machinery until the winds have dropped. This could mean we won’t complete repairs in time for a normal morning service.

Flooding

Water blocking the lines – debris, silt and mud making its way onto the track – are only part of it. The lasting damage flood water can cause to infrastructure can lead to ongoing repair work that takes days, weeks or even months. Washed away ballast – the stones that support the track – can make the line unsafe until it’s re-laid.

Click here for full article:https://www.networkrail.co.uk/running-the-railway/looking-after-the-railway/delays-explained/storms/