Core Points - A new cold air mass will affect China's central and eastern regions starting January 25, bringing temperature drops of 3 to 6°C, with local decreases exceeding 8°C [1] - Snowfall is expected in North China, southern Northeast China, and northern Huanghuai, primarily characterized as "return flow snow" [1][3] Summary by Sections Weather Forecast - The chief forecaster from the Central Meteorological Observatory explained that "return flow snow" occurs when cold air from the north moves southward, encountering geographical barriers that cause it to gain moisture and subsequently cool and condense into snow [3] - The forecast indicates that from January 25 to early January 26, Beijing will experience light snow, with most areas expecting snow accumulation of less than 1 cm, while mountainous regions may see 1 to 4 cm [3][4] Impact of Snowfall - The snowfall is expected to start in the early morning of January 25, with intermittent light snow throughout the day, leading to slippery roads and reduced visibility [4] - The maximum temperature in Beijing on January 25 is forecasted to drop to -2°C, with a wind chill effect making it feel colder [5] Comparison with Previous Weather Events - This cold air event is noted to have a rain-snow line significantly further north compared to the previous cold air event from January 17 to 21, with reduced snowfall intensity and coverage [5] - A new cold air mass is anticipated from January 29 to 31, expected to bring temperature drops of 4 to 8°C, with local areas experiencing drops of around 10°C and stronger precipitation than the current event [7]