Delays of up to 45 minutes on First Great Western between London Paddington and Reading, and between London Paddington and Greenford due to safety checks of the line being made at West Drayton.
London Underground are accepting tickets for reasonable routes. There is currently no estimate for when a normal service will resume. Some Heathrow Express and Heathrow Connect services may be delayed due to congestion in the area.
More top news
Parents fear council plans to expand Aldryngton Primary School in Wokingham will make an already dangerous traffic problem, even worse.
Simon's Blog - Winter Wonderland
Tuesday night's weather for the west of the region