After the mudslide that tore along their border, China's meteorological authority has stepped in to support rescue operations in Nepal. It has shared Fengyun satellite data, high-resolution weather products and lightning monitoring information to help teams on the ground. China has also rolled out a Nepal-customized version of its "Mazu" weather system to deliver accurate, seamless forecasts up to 30 days ahead. For rescue teams racing against time, knowing the weather in advance can make all the difference.