A pre-warning map for winter clothing in China was released at Weather China's website Tuesday.

The map shows people are suggested to wear long johns, woolen trousers, and cotton-padded trousers to defend against the cold air since a new cold front has come in this week, following another at the beginning of the month.

The first district affected by the cold front is Northeast China, starting at the end of last week. The temperature of some areas in Heilongjiang province has been minus 45 degrees Celsius. The lowest temperatures in most parts of Northeast China, northern Xinjiang Uygur autonomous region, and Inner Mongolia's central and east parts are all below minus 28 degrees Celsius.

Therefore, people in the above-mentioned districts have to wear as many layers as they can, including warm trousers and down jackets. If not enough warm clothes are worn, then body fat has to be used to keep warm.

The temperature in Beijing fell to minus 12.3 degrees Celsius this morning, the lowest so far this winter. The lowest temperatures in the east parts of Northwest China and the Beijing-Tianjin-Hebei area will both be below minus 10 degrees Celsius for the next three days, as well as temperatures in Shandong and Henan's north section dropping on Jan 24 and 25.

Though mothers always urge their children to wear cotton-padded trousers, and children resist due to the garment’s ugliness, people in these areas are encouraged to wear them as soon as possible.