Blue skies but freezing temperatures and gusty winds await athletes at the mountain clusters of the Beijing Olympics which get under way on Friday. Some may feel reminded of the Pyeongchang 2018 Games where conditions were similar at the mountain venues and the wind chill saw temperatures even drop below minus 20 degrees Celsius. Minus 20 is the official cut-off point but organizers can start considering delays or cancellations from minus 15 onwards, depending on the wind. “It is quite dangerous for the health with minus 20 or 18 with wind. But we have a competition jury which will make the ri…