SHANGHAI/BEIJING (Reuters) - China warned of a second wave of snow and sleet hitting northern, central and eastern parts on Friday after record snowfall paralyzed parts of the country in the most severe weather this winter.

Heavy snowfall has wreaked havoc in central and eastern China since Tuesday, killing 10 people and disrupting the lives of more than half a million people in five provinces, according to the official Xinhua news agency.

Agriculture has also been hit, with economic losses amounting to 510 million yuan ($79 million) so far.

The National Meteorological Centre lifted a blizzard alert, but said light to moderate snowfall was expected to sweep across much of the north between Friday and Sunday.

Snow has disrupted public transport and energy supplies, damaged power lines and shut roads, airports and schools in parts of central China.

All power in Suizhou, a small city of 2.5 million people in the north of central Hubei province, was down due to heavy snow, state broadcaster China Central Television reported.

Temperatures in Suizhou are expected to plunge as low as minus 5 degrees Celsius (23 degrees Fahrenheit) on Friday.

Hubei, which does not have central heating infrastructure unlike northern provinces, has seen a spike in electricity consumption for heating, according to CCTV.

On Thursday, at least three airports were shut and nine were experiencing extensive delays because of heavy snowfall.

As of 0630 GMT on Friday, all airports in China were open, and only three airports faced delays, according to Chinese aviation data provider VariFlight.

Several high-speed trains from Shanghai and Beijing were also delayed or canceled on Thursday, and highways in the provinces of Jiangsu, Henan, Shaanxi and Hubei have also been closed off, the China Daily reported.

The ceilings of several bus stations in Hefei, the capital of Anhui province, had collapsed as a result of snow, resulting in at least one death, the newspaper said. The province saw a record 30 cm (12 inches) of snow on Thursday.

The roof of a factory in Xiangyang, also in Hubei province, collapsed, trapping five people, and traffic in the city ground to a halt, according to the state broadcaster, China National Radio.

CCTV footage on Friday also showed collapsed roofs of factories in Henan and Anhui provinces.

By contrast, Beijing has been dry, with many parts of northern China experiencing little to no snowfall.