广西气象干旱有望5月中旬末解除

Core Viewpoint - Guangxi is experiencing significant meteorological drought, impacting water supply for residents, livestock, and agricultural production, with the fire risk level in forest areas elevated [1] Group 1: Current Drought Situation - From November 1, 2024, to April 26, 2025, Guangxi's average precipitation was 142.8 mm, which is over 60% less than the normal level, marking the lowest since 1961 for the same period [1] - The drought began to develop at the start of the year, with some alleviation in February and March due to natural rainfall and artificial precipitation efforts, but it intensified again in April [1] - Between April 19 and 25, Guangxi experienced three instances of moderate rain accompanied by severe convective weather, which provided varying degrees of relief from the drought, although some areas remain severely affected due to uneven rainfall distribution [1] Group 2: Causes of Drought - The ongoing La Niña phenomenon in the equatorial central Pacific from December 2024 to February 2025 is contributing to the drought conditions, as historically, La Niña years have led to consecutive dry seasons in Guangxi [1] - The strong East Asian trough during La Niña years results in abnormal northerly winds over Guangxi, leading to high temperatures, low rainfall, and increased evaporation [2] Group 3: Future Weather Predictions - The meteorological department forecasts three instances of moderate rain before May 10, with localized heavy rain and severe convective weather expected on specific dates [2] - By the end of early May, the meteorological drought is expected to significantly ease, with a potential complete resolution by mid-May [3]