Group 1 - The article discusses the weather conditions in Henan province, highlighting a temporary calm before a new round of rain and snow expected on Sunday, January 25 [1][5] - A yellow warning for road icing is in effect due to temperatures below 0°C, causing slippery road conditions that could severely impact traffic [3][5] - The minimum temperatures in eastern regions have dropped to -9°C, with most areas experiencing temperatures between -7°C and -5°C, emphasizing the need for caution and warmth [3][5] Group 2 - The forecast indicates that light rain may begin in the central and southern parts of the province on Saturday night, with rain and snow spreading across the province on Sunday [9] - Specific weather conditions include light snow in the north and west, rain or sleet in the southeast, and potential freezing rain in some areas, along with winds of 3 to 4 levels from the north [9] - The article references a historical poem to illustrate the current weather situation, indicating that true warmth is still awaited despite the temporary sunshine [9]

Core Viewpoint - The recent cold wave in Shandong province has led to significant drops in temperature, with warnings issued for both cold waves and low temperatures, impacting daily life, agriculture, and energy supply [1][2][3]. Summary by Sections Cold Wave Severity - The cold wave has resulted in temperatures dropping below -10°C across most of the province, with specific areas experiencing even lower temperatures [2][4]. - The cold wave is characterized by a prolonged duration and significant temperature drops, with the lowest temperatures expected between January 21 and 22 [4]. Nature of Warnings - The simultaneous issuance of cold wave and low temperature warnings indicates both a sharp drop in temperature and a sustained period of low temperatures, increasing the risk of adverse effects [3]. Duration of Low Temperatures - The cold wave is expected to last longer than typical events, with temperatures remaining low through January 22, particularly during the "Four Nines" period, which is historically cold for the region [4][6]. Causes of Temperature Drop - The severe drop in temperature is attributed to a prolonged cold air mass and a significant temperature contrast following a period of unusually warm weather, where temperatures reached up to 17°C prior to the cold wave [5]. Future Temperature Predictions - Following the current cold wave, average temperatures in Shandong are expected to be slightly below normal from January 26 to February 10, with increased precipitation anticipated [6][7].

Group 1 - A cold wave is affecting China, with a blue alert issued by the Central Meteorological Observatory, leading to a temperature drop of 6-12°C across central and eastern regions from the 18th to the 21st [1] - Some areas in the Huanghuai South, Jianghuai West, Jianghan East, Jiangnan Central and Western, eastern Guizhou, and northern Guangxi may experience temperature drops of 12-14°C, with localized drops exceeding 16°C [1] Group 2 - The cold wave is causing the most extensive rain, snow, and freezing weather process this winter in central and eastern regions, with light snow or sleet expected in various areas including Tibet, Inner Mongolia, Heilongjiang, Jilin, Beijing, Tianjin, Shandong, Henan, and Shaanxi [2] - In Beijing, snowfall began yesterday, with an average accumulation of 0.6 mm and a maximum of 6 mm in Fangshan District, expected to weaken and end by this afternoon [3] - Tianjin experienced its first snowfall of the year, with the city issuing a yellow alert for road icing, and snow levels reaching small to moderate [4][8] Group 3 - In Hebei, most areas are experiencing snowfall, with temperatures dropping to -11°C, and significant accumulation reported in Zhuozhou with 3.1 mm of precipitation and 4 cm of snow depth [9] - The Jinggang'ao Expressway in Zhuozhou has restricted certain vehicles due to snow, and multiple highways are facing traffic disruptions due to the weather [11]

Group 1 - The core weather event affecting Shandong province includes a strong cold air mass leading to a significant drop in temperatures, with forecasts indicating a temperature decrease of 10℃ to 12℃, and in some areas exceeding 14℃ [1][2] - A series of weather warnings have been issued, including a blue snow warning, orange road icing warning, yellow cold wave warning, and yellow low-temperature warning, indicating severe weather conditions expected from January 17 to January 19 [1][2] - The expected minimum temperatures for various regions include -16℃ to -14℃ in the northwest and central mountainous areas, with coastal regions experiencing lows of -8℃ to -6℃, and other areas ranging from -10℃ to -8℃ [1] Group 2 - The precipitation forecast indicates an average accumulation of 8mm to 15mm, with snow depth reaching 3cm to 8cm, and potentially exceeding 12cm in some areas, which may significantly impact transportation due to road icing [2] - The weather conditions are expected to improve soil moisture and reduce forest fire risks, but the prolonged low temperatures and snow accumulation could adversely affect transportation, urban operations, and agricultural facilities [2] - The north winds are anticipated to negatively impact maritime transportation and coastal aquaculture, necessitating enhanced preventive measures [2]

Weather Conditions - On January 2nd to 3rd, a dry northerly airflow dominated, leading to a return of sunshine in most parts of central and eastern China [1] - The temperature in southern China continued to drop on January 2nd, while other central and eastern regions experienced a slow temperature rise, but overall remained low [1] - The lowest temperature line of 0°C moved further south to southern Jiangnan on January 3rd, marking the southernmost point this winter [1] Forecast - Short-term weather in Suzhou will feature cloud changes, with temperatures remaining low, except for some precipitation expected on the night of January 4th [1] - Due to the influence of cold air, temperatures in Suzhou are expected to continue to decline, with the lowest temperature around -2°C on the morning of January 3rd, and around -3°C in the northern areas along the river, indicating freezing conditions [1] - The Suzhou Meteorological Station issued a low-temperature report on January 2nd, forecasting light rain or rain mixed with snow in the western and northern regions on January 4th, with temperatures ranging from 0°C to 9°C [1]