According to a new update from the World Meteorological Organization, there is a 90% probability of the El Niño event continuing during the second half of 2023. It is expected to be at least of moderate strength.
WMO Secretary-General Prof. Petteri Taalas: “The onset of El Niño will greatly increase the likelihood of breaking temperature records and triggering more extreme heat in many parts of the world and in the ocean. The declaration of an El Niño by WMO is the signal to governments around the world to mobilize preparations to limit the impacts on our health, our ecosystems and our economies,” he said. “Early warnings and anticipatory action of extreme weather events associated with this major climate phenomenon are vital to save lives and livelihoods.”
The El Niño event occurs on average every 2 to 7 years, and episodes typically last 9 to 12 months. It is a naturally occurring climate pattern associated with warming of the ocean surface temperatures in the central and eastern tropical Pacific Ocean. But it takes place in the context of a climate changed by human activities.
A WMO report released in May predicted that there is a 98% likelihood that at least one of next five years, and the five-year period as a whole, will be warmest on record, beating the record set in 2016 when there was an exceptionally strong El Niño.
Source: public.wmo.int