Calmac said the Ardmhor to Eriskay route is on yellow alert and liable to cancellation or disruption.

A yellow alert - the second of the four weather tiers - is in place in the capital, with an orange alert in Bordeaux and Lyon.

It has now issued a yellow alert for England for a further week, warning of an increased use of health care services by vulnerable populations and an increase in risk to health for people aged 65 years and over, those with pre-existing health conditions, and some other vulnerable groups, such as those sleeping rough.

A yellow alert is in place from 18:00 in the Highlands, Perth and Kinross, Stirling and Argyll and Bute.

Italy’s civil protection agency has maintained a yellow alert on the site, denoting caution but not imminent danger.