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Climate Phenomena

El Niño La Niña La Nina El Nino El Niño-Southern Oscillation El Niño Southern Oscillation Canícula Seasonal Weather Patterns Oceanic Phenomena

El Niño Declared in Tropical Pacific, Forecasts Point to Very Strong Event

Models now give high odds that the developing El Niño will boost global temperatures and shift regional rainfall and storm tracks.

NOAA Says El Niño Is Underway and Could Become Very Strong by Winter

Santa Catarina Issues Climate Alert as Agencies Warn of Developing 'Super El Niño'

NOAA and WMO Flag High Odds of 2026 El Niño With Potential for a Very Strong Event

Models Point to Strong 2026 El Niño as Pacific Ocean Heat Surges

WMO Sees El Niño Likely to Begin in May After Rapid Pacific Warming

Forecasters Say El Niño Is Likely Within Months, Strength Uncertain

El Niño Likely in 2026 as Pacific Signals Strengthen

NOAA Puts El Niño on Watch With 61% Odds for May–July, Flags 25% ‘Very Strong’ Risk

Forecasts Point to El Niño’s Return in 2026 as Record Heat Risk Rises

NOAA Issues El Niño Watch for 2026 as Models Flag Rising Odds of a Strong Event

Leading Models Raise Odds of a Significant El Niño by Late Summer

Rapid El Niño Build Puts 2027 on Track for Record Heat, With 2026 at Risk

La Niña Weakens With ENSO‑Neutral Likely Soon, El Niño Odds Rise for Late 2026

Forecasters Raise El Niño Odds for 2026 as La Niña Fades

CPC Says La Niña Likely to Fade by Spring as El Niño Odds Build for Late 2026

NOAA Confirms Weak La Niña to Guide Early U.S. Winter, With Neutral Likely by Late Winter

Old Farmer’s Almanac Sees Wet West for Thanksgiving, Snow Risks in Northeast by Christmas

NOAA Confirms La Niña, Calling It a Weak Event With Uncertain Winter Impacts

La Niña Watch in Effect as Warm Pacific Clouds U.S. Winter Outlook