A 19-metre wave miles off the Outer Hebrides has been recorded as the highest-ever detected by a buoy.

Initially recorded in the North Atlantic on February 4 2013, the wave has now been analysed by an expert committee of the World Meteorological Organisation (WMO) and marked as a new world record.

It followed the passage of a very strong cold front, which produced winds of more than 50mph in the area between the UK and Iceland.

The buoy that recorded the wave is a part of the Met Office's network of marine automatic weather stations.

The WMO commission for climatology's extremes evaluation committee - made up of scientists from the UK, US, Canada and Spain - classified it as 'the highest significant wave height as measured by a buoy'.

The previous record of 18.275m was measured on December 8 2007, also in the North Atlantic.