Shanghai’s Bizarre Weather

Above is a screenshot (taken at the weekend) of the weather forecast for Shanghai over the next few days. According to this forecast it’s going to go from +15C to -6C plus snow some time on Wednesday or Thursday. That’s quite a jump! Today the forecast is merely from +18C to 0C - no snow. Still a big drop in temperatures. One day of sun bathing followed by a day of artic weather. Global warming in action?