70% probability of La Niña growing in October-December 2025

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The Philippines’ climate bureau raises its La Niña Alert on Monday, September 15, citing an elevated chance of La Niña within the fourth quarter

MANILA, Philippines – The climate bureau raised its warning standing from La Niña Watch to La Niña Alert on Monday, September 15, saying that there’s already a 70% probability of the climate phenomenon growing within the fourth quarter of 2025.

The Philippine Atmospheric, Geophysical, and Astronomical Providers Administration (PAGASA) famous that there was “additional cooling of sea floor temperatures throughout the central and japanese equatorial Pacific.”

La Niña might start throughout the October-December 2025 season, and would possibly persist till the December 2025-February 2026 season.

“When situations are favorable for the event of La Niña throughout the subsequent two months and the chance is 70% or extra, a La Niña Alert is issued,” PAGASA defined.

Within the Philippines, La Niña often causes an “above-average” variety of tropical cyclones and “increased possibilities of above-normal rainfall situations” in most areas.

“These may very well be led to by a number of rain-bearing climate programs comparable to monsoons, extreme thunderstorms, low stress areas, easterlies, shear traces, and [the] intertropical convergence zone,” PAGASA mentioned.

Extra rainfall would imply a better threat of floods and landslides.

“All involved companies and the general public are inspired to proceed monitoring and take precautionary measures,” the climate bureau mentioned.

PAGASA had raised La Niña Watch final August 26. On the time, there was not less than a 55% probability of La Niña growing within the tropical Pacific inside six months.

For now, “cool ENSO-neutral situations are nonetheless current within the tropical Pacific,” in line with the climate bureau.

ENSO refers to El Niño Southern Oscillation, which the World Meteorological Group defines as “a recurring pure phenomenon characterised by fluctuating ocean temperatures within the equatorial Pacific, coupled with adjustments within the ambiance.”

ENSO has three phases: El Niño or the nice and cozy part, La Niña or the cool part, and impartial.

In 2025, there was a weak La Niña within the first quarter, adopted by a shift to ENSO-neutral. – Rappler.com

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