南北方强降雨与高温并存 加强极端天气风险防范

Weather Patterns and Impacts - The article discusses the complex and variable weather patterns in China, with both high temperatures and heavy rainfall occurring simultaneously in different regions [1][2] - The Central Meteorological Administration has issued multiple weather warnings, including orange alerts for heavy rain and high temperatures [1] Rainfall Forecast - Significant rainfall is expected in North and South China, with the potential for heavy downpours in regions like Huabei and Huadong, where accumulated rainfall could reach 300 to 500 millimeters [1][2] - The rainfall is anticipated to alleviate drought conditions in some areas, with a notable shift in rain bands expected from August 5 to 6 [1] Temperature Forecast - High temperatures ranging from 35°C to 41°C are forecasted for several regions, including southern Huabei and parts of Jiangnan, which may impact agricultural activities [2][3] - The article highlights the critical flood prevention period in China, where rainfall during this time accounts for about one-third of the annual total [2] Agricultural Impact - High temperatures are expected to significantly affect agriculture, particularly in regions where crops are at critical growth stages, such as the southeast Sichuan basin and parts of Henan and Hubei [3] - Experts recommend measures like deep watering and foliar fertilization to mitigate the effects of high temperatures on crops [3] Transportation and Energy Concerns - The article notes that high temperatures will also impact transportation, with road surface temperatures potentially reaching 62°C to 74°C in certain areas, necessitating caution for drivers [3] - There is a warning regarding increased electricity demand due to high temperatures, alongside concerns about reduced efficiency in photovoltaic power generation [3]