A warning sign is seen on top of the Rosa Khutor Alpine Resort in the western Caucasian mountains near Krasnaya Polyana some 40 km outside of the Black Sea city of Sochi February 7, 2012. Rosa Khutor is hosting men's and women's downhill and super combined Alpine Skiing World Cup races over the next two weekend in preparation for the 2014 Sochi Winter Olympic Games. The weather conditions of the Olympic skiing venues are maritime and very likely to be similar to the 2010 Vancouver Olympics in the Whistler mountains. REUTERS/Wolfgang Rattay (RUSSIA - Tags: SPORT SKIING ENVIRONMENT)