* Largs High Tides: Wednesday 1.30am and 2pm, Thursday 2.34am and 2.52pm * Trains off from Largs-Kilwinning cancelled on Wednesday * more ferry cancellations expected * SEPA have issued coastal flooding warning * MET office offer yellow 'Be Aware' warning Largs and Millport, and surrounding areas are preparing for 'Black Wednesday' with severe winds and unusually high waves forecast.

As a result of an Atlantic storm, a number of precautions and warnings are in place.

With cancellations already throughout Tuesday, ferry operator Caledonian MacBrayne has warned of disruption to its services.

A spokesman for Cal Mac said: "Severe weather warnings have been issued across Scotland, with strong gales and gusts of up to 80mph likely to bring disruption to services across the Calmac ferry network from Monday night through until Thursday.

"Forecast high winds and storm conditions will impact on the normal scheduled sailings."

The RNLI said some of those involved in maritime activities have coined the phrase "Black Wednesday" because of harsh conditions which have been predicted.

Scotrail have taken the unusal step of announcing that all their train services from Largs to Kilwinning on Wednesday have been cancelled.

An updated flood alert has been issued by the Scottish Environment Protection Agency for Ayrshire and Arran.

This alert is for coastal flooding. Very high waves and a surge are expected to affect the area from Tuesday until Thursday. Exposed coastal areas including roads and low lying properties may be at risk from flooding due to wave overtopping particularly during periods of high tide. For information high tides at Millport are at approximately and 2am and 2pm on Wednesday.

A SEPA spokesman said: "Remain vigilant and remember, it is your responsibility to take actions which help protect yourself and your property." Advice and information is also available through Floodline on 0345 9881188. If you haven't already signed up to receive free flood messages, register online at sepa.org.uk/floodingsignup.