Xaver (also named Berit by the Norwegian Weather Service) was a strong European windstorm that formed near the Azores on November 22, 2011. The storm began producing heavy rain and snow over Northern Europe on November 24 and 25. Scotland saw its first snowfall since March, earlier in the year. The Faroe Islands also reported winds up to 200 kilometres per hour (120 mph) and excessive damage. On November 25, the Norwegian Weather Service named the storm 'Berit'. Another storm, called Yoda, hit Scotland just a day after Xaver.
A low pressure area formed south of the Azores on November 21, and by the next day, was named Xaver by the Free University of Berlin. On November 23, the storm passed north-east of the United Kingdom and to the south of the Faroe Islands with a strong central pressure of 980 millibars. Xaver rapidly strengthened during the early hours of November 24, and had also developed an eye. During the late hours of November 25, Xaver began weakening as it approached the coast of Norway.
The storm brought heavy snow over the mountains and large waves to the coastline of Scotland. The UK Met Office issued severe weather warnings for strong winds and heavy rain for the end of November. One woman died after her car got swept into a loch in Harris on November 25. A class II warning for Norway was issued by SMHI, which means there is a danger to the public. On November 26, Statoil was forced to close three platforms due to high waves. Waves were expected to reach 15 meters along the Norwegian coastline. Twelve Caledonian MacBrayne ferries were cancelled from the Western Isles. Staff members had to move below 2,000ft on Ben Nevis as gale force winds forced the gondolas to close. Schools were closed on November 25 due to high winds. The Forth, Skye, Tay, Erskine, Friarton and the Clackmannanshire Bridge had speed restrictions on November 25.