Portugal winter atlantic storm. Was caught in one of these in the third ship of my carrier and I was only a senior cadet at that time. Keel Plate of the ship was so badly dented that nearly the whole keel plate had to be changed at Bremerhaven, MV Warsak was only 3 months old and under Warranty.
Leon Brown, forecaster for The Weather Channel, blamed a ferocious jet stream for dragging relentless Atlantic storms into the UK. Description from express.co.uk. I searched for this on bing.com/images