The Met Office has issued an amber 'be prepared' warning for Scotland for Wednesday and early on Thursday.

On Wednesday, December 10, trains between Helensburgh Central and Edinburgh will be started from Dumbarton Central and will no longer call at Helensburgh Central, Craigendoran, Cardross and Dalreoch.This is due to poor weather conditions.

ScotRail's website states: "Replacement road transport will convey passengers between Helensburgh Central and Dumbarton Central in both directions. Journey times will be extended. "

This service is scheduled to run as outlined above for the duration of the day.

The Met Office also forecast westerly winds will gust 70mph to 80 mph at times and will be combined with 'exceptionally' high waves.

The public have been advised to be prepared for dangerous conditions, especially along causeways and coastal roads exposed to the west.

Chief Forecaster's assessment stated: "Very strong winds are likely to affect northern and central parts of the UK from early Wednesday and last through until early Thursday as a very deep low pressure system moves slowly eastwards between Scotland and Iceland.

"There remains some uncertainty in the precise depth of this low and therefore in the exact wind strengths and timings. However a period of severe gales is likely over northern and central Britain, as well as the potential for storm force winds over the Amber area.

"Very large swell generated over the Atlantic to the south of the very deep depression will lead to exceptionally large waves affecting west coasts."

Visit http://www.journeycheck.com/firstscotrail/ for details of the train routes.