WMO预计2026年第一季度弱拉尼娜概率达55%

世界气象组织报告称,未来三个月出现弱拉尼娜影响天气和气候模式的概率为55%。尽管它对全球气温有暂时冷却作用,但许多地区仍预计将出现高于正常水平的温暖。这一评估源于2025年11月中旬观察到的边缘拉尼娜条件。

世界气象组织(WMO),联合国气象机构,指出截至2025年11月中旬,海洋和大气指标显示出边缘拉尼娜条件。对于2026年1月至3月和2月至4月期间,返回ENSO中性条件的概率预计将从约65%逐渐增加至75%。

拉尼娜涉及中东赤道太平洋海表面温度的周期性大规模冷却,伴随热带大气环流的变化,包括风、气压和降雨模式。尽管它对全球平均气温产生暂时冷却影响,但WMO指出,在人类诱发气候变化的更广泛背景下,许多地区很可能仍将保持高于正常温度。

厄尔尼诺事件的可能性很小,该事件通常产生相反效应。厄尔尼诺和拉尼娜的季节性预报是气候敏感部门如农业、能源、健康和交通的重要规划工具。这些自然发生的大规模气候现象发生在人为气候变化的持续背景下。

对于经常受此类事件影响的菲律宾,这一预报促使其为潜在的降雨和温度模式变化做好准备。

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