The China State Meteorology Bureau is forecasting a continuous freeze in the ten days to come.
The National Disaster Relief Committee and the Ministry of Civil Affairs have directed governments at all levels to take action.
Staff and instructions for disaster relief are to be prepared in regions likely to be affected. The central government says basic supplies in affected areas, especially remote areas, must be guaranteed.
Departments of public security and transport are to coordinate to ensure emergency aid for stranded passengers.