中东部大部降水稀少 冷空气活动较频繁

Core Points - The central meteorological station has issued a medium-term weather forecast indicating that most regions in China have experienced less precipitation over the past ten days, with significant temperature fluctuations due to cold air activity [1][3] - The forecast for the next ten days suggests frequent cold air activities, with little precipitation expected in the central and eastern regions of China [1][3] Summary by Sections Recent Weather Conditions - Over the past ten days (November 9-18), areas such as eastern Sichuan Basin, northern Hunan, southeastern Zhejiang, northern Fujian, and parts of Yunnan and Guizhou received 20-40 mm of rainfall, while southeastern Hainan and some areas in Zhejiang and Fujian saw 50-70 mm, which is 50% to 100% above the normal levels for this time of year [1] - Most other regions in China experienced below-normal precipitation during this period [1] Upcoming Weather Forecast - For the next ten days (November 19-28), regions including northern Xinjiang, the Tibetan Plateau, eastern Northwest China, northern North China, and Northeast China are expected to receive 1-5 mm of precipitation, with localized areas exceeding 10 mm. Southwestern regions may see 10-20 mm, while most of the central and eastern regions will have little to no precipitation [1][2] - Average temperatures in northern Xinjiang, most of North China, and Northeast China are projected to be 2-3°C higher than the same period in previous years, while other regions will experience temperatures 1-3°C lower than normal [2] Significant Weather Events - A strong cold air mass is expected to impact most of China from November 22-24, leading to a temperature drop of 6-8°C in most areas north of the Yangtze River, with localized drops of 10-12°C and winds of 4-6 levels [3] - Another strong cold air mass will affect the central and eastern regions around November 26, with similar temperature drops and potential for light to moderate snow in parts of Northwest China, northern North China, and Northeast China [3] Long-term Weather Outlook - For the 11-14 day forecast (November 29-December 2), areas in northeastern Inner Mongolia, Northeast China, and eastern Southwest China are expected to receive 1-5 mm of precipitation, while most other regions will see little to no precipitation [3] - Except for northern Xinjiang and Tibet, where temperatures are expected to be 1-2°C higher than normal, most other regions will experience temperatures 1-2°C lower than the historical average [3]