今年三伏，会更热吗？

Core Viewpoint - The upcoming summer heat during the Sanfu period is expected to be intense, with predictions of extreme weather events, including both droughts and floods, particularly in eastern China [2][4]. Group 1: Weather Predictions - The National Climate Center forecasts an increase in extreme weather events during this period, with a notable distribution pattern of rainfall being more abundant in the north and less in the middle regions [2]. - Jiangsu Provincial Climate Center predicts that the Sanfu period will be characterized by high temperatures, with the onset of high heat becoming increasingly delayed into late summer [2][4]. Group 2: Causes of Early Heat - The early onset of high temperatures this year is attributed to an abnormal northward shift of the Western Pacific Subtropical High and an early end to the plum rain season, leading to hot and dry conditions in the Jianghuai region [3]. - The current high temperatures are expected to rebound after the influence of Typhoon Danas subsides, particularly in the Jianghuai area [3]. Group 3: Long-term Trends - Over the past decade, there has been a significant increase in the frequency and intensity of high-temperature days in China, with a trend of earlier starts and later ends to the high-temperature season [4]. - The Long Triangle region has seen record-breaking summer heat since 2010, with a notable increase in the number of high-temperature days [4]. Group 4: Public Safety Measures - The China Meteorological Administration emphasizes the importance of monitoring local weather forecasts, especially for vulnerable populations such as the elderly, children, and those with chronic illnesses [5]. - It is advised to arrange work schedules to avoid high-temperature periods and implement effective heat prevention measures in various industries [5].