Predicted El Niño Conditions and Their Global Weather Impacts

Apr 27, 2026, 08:53

Introduction

Weather organizations are monitoring the likely development of an El Niño event. This phenomenon is expected to begin between May and July of this year and could continue to strengthen through late 2026.

Main Body

El Niño occurs when trade winds in the tropical Pacific weaken or reverse, causing warm surface waters to move eastward. The World Meteorological Organization (WMO) and agencies from Japan, China, and the U.S. report a high probability of this change. For instance, the U.S. Climate Prediction Center estimates a 61% chance of it starting between May and July, while Japan's weather bureau suggests a 70% likelihood during the northern summer. Regional forecasts show different results. Asia, particularly India and Southeast Asia, is expected to face drier conditions and higher temperatures, with Indian officials warning of lower-than-average monsoon rains. In contrast, North and South America are projected to see more rain. In the U.S., this could help crops grow in the Midwest, although too much rain during the harvest remains a concern. In Europe, increased summer rainfall might help corn production, whereas wheat harvests should be finished before the event peaks. In Australia, the Bureau of Meteorology predicts lower rainfall and higher temperatures for eastern farming regions from May to August. Experts emphasize that the strength of El Niño does not always directly determine the severity of local droughts. Furthermore, cooling temperatures in the Indian Ocean may further reduce the chance of rain. Analysts also warn that these weather changes, combined with high fertilizer costs due to geopolitical instability, could lead to significant crop losses. Past events in 1997-1998 and 2015-2016 caused major drops in grain and oil production in Asia and flooding in South American soybean fields.

Conclusion

Global weather agencies agree that El Niño is likely to occur. This will change precipitation and temperature patterns worldwide, creating both risks and opportunities for the international agricultural sector.

Vocabulary Learning

instability (n.)

lack of stability, frequent changes不穩定

Example:High fertilizer costs due to geopolitical instability could lead to significant crop losses.

monitoring (v.)

keep track of / watch closely監測、監視

Example:Weather organizations are monitoring the likely development of an El Niño event.

precipitation (n.)

rain, snow, or other water falling from the sky降水

Example:El Niño will change precipitation and temperature patterns worldwide.

probability (n.)

chance that something will happen可能性

Example:The U.S. Climate Prediction Center estimates a 61% probability of it starting between May and July.

severity (n.)

seriousness of a situation嚴重程度

Example:The strength of El Niño does not always directly determine the severity of local droughts.

Sentence Learning

Experts emphasize that the strength of El Niño does not always directly determine the severity of local droughts.

Relative Clause: The clause "that the strength of El Niño does not always directly determine the severity of local droughts" adds essential information about the strength of El Niño.關係子句: 這個子句「that the strength of El Niño does not always directly determine the severity of local droughts」為強化對 El Niño 強度的說明，提供必要的補充資訊。

In the U.S., this could help crops grow in the Midwest, although too much rain during the harvest remains a concern.

Contrast (although): The word "although" introduces a contrast between the potential benefit for crops and the concern of excessive rain.對比（although）: 「although」引入對比，說明雖然可能對作物有利，但過量雨水仍是擔憂。

In Europe, increased summer rainfall might help corn production, whereas wheat harvests should be finished before the event peaks.

Contrast (whereas): The word "whereas" sets up a comparison between increased rainfall helping corn and the need to finish wheat harvests before the event peaks.對比（whereas）: 「whereas」用於比較，說明在夏季降雨有利於玉米，但小麥收成必須在 El Niño 高峰前完成。

Analysts also warn that these weather changes, combined with high fertilizer costs due to geopolitical instability, could lead to significant crop losses.

Complex Clause (combined with): The phrase "combined with" links high fertilizer costs to the risk of crop losses, showing cause and effect.複合子句（combined with）: 「combined with」將高肥料成本與作物損失風險連結，顯示因果關係。