UN: La Nina weather phenomenon expected to arrive later this year and bring cooler temperatures, after extreme heat records around the world

HIBAPRESS-RABAT-OMM

The 2023/2024 La Nina weather phenomenon is expected to arrive later this year and bring cooler temperatures, after extreme heat records around the world have been broken month after month for the past year.

La Nina refers to the large-scale cooling of ocean surface temperatures in the central and eastern equatorial Pacific. It is associated with changes in tropical atmospheric circulation: winds, pressure and precipitation.

The precise effects of the phenomenon vary depending on the intensity, duration but also the time of year at which the phenomenon occurs and the interaction with other climatic phenomena.

The phenomenon has a 60% chance of appearing during the July-September period and increasing to 70% in August-November, the risk of a reappearance of El Nino is unlikely during this period.

Furthermore, over the June-August period, there is an equal chance (50%) that conditions will be neutral – neither Nino nor Nina – or a transition to La Nina.

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