BEIJING - China's national observatory raised the weather warning level from yellow to orange on Saturday morning as much of the country braced for the worst cold in 30 years.

北京消息-周六上午，全国多地迎来30年来最冷天气，国家气象台发布黄色预警转橙色预警。

According to the National Meteorological Center (NMC), temperatures dropped 6 to 10 degrees Celsius on Saturday morning in parts of northwest China, north China and the Huanghuai area.

根据国家气象中心（NMC）消息，星期六上午在中国西北地区，华北和黄淮地区，气温下降6到10摄氏度。

China has a four-tier warning system for severe weather, with red being the most serious, followed by orange, yellow and blue.

对于恶劣天气，中国分为四个级别预警，红色预警是最严重的，其次是橙色、黄色和蓝色预警。

In the worst-affected areas such as eastern Hebei province, northern Shandong province and eastern Qinghai province, the cold front brought down temperatures by 11 to 16 degrees Celsius, the NMC said.

据国家气象中心消息，受冷空气影响最严重的地区，如河北省东部，山东北部，青海省东部，冷锋致使气温下降11到16度。

In Beijing, temperatures dropped to under minus 10 degrees Celsius on Friday and will hit a 30-year low of minus 16 degrees Celsius from Saturday through Sunday, the Beijing meteorological station said.

气象台表示，本周五北京气温下降至零下10度，周六和周末气温下降至零下16度，达到30年以来最低温。

At 7:00 am Beijing Time on Saturday, all regions north of the Yangtze River, except eastern Sichuan province and Chongqing, saw temperatures drop to below zero degrees Celsius, according to the NMC.

根据气象台消息，北京时间周六早上7点，除四川东部和重庆地区，长江以北所有地区温度都下降至零度以下。

The NMC also expected temperatures in South China and Southeast China to drop by 6 to 10 degrees Celsius from Saturday to Monday.

气象台预计说，本周六到下周周一，中国南部和东南部地区气温将下降6到10度。

Temperatures in central and eastern regions of China were 6 to 8 degrees Celsius lower than the average historical level.

中国中部和东部地区气温比历史平均气温下降6到8度。

Temperatures in parts of Anhui, Zhejiang, Fujian and Guangdong are forecast to approach or even drop below the lowest levels on record, it said.

气象台表示，在安徽省、浙江省、福建省和广东省部分地区气温将打破最低温记录。

The NMC issued a yellow alert for the cold weather on Thursday.

周四，气象台发布过冷空气的黄色预警。