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Rare 'Super El Nino' Forming: 90% Chance of Record Strength
21 Jul
Summary
- A rare 'Super El Nino' is highly likely to form.
- Water temperatures may exceed 2.5 degrees Celsius above average.
- Connecticut anticipates a milder, warmer than average winter.

AccuWeather meteorologists indicate a high probability, reaching 90%, for the formation of a rare "Super El Nino" by the end of August. This event is projected to be one of the strongest in nearly 50 years, with water temperatures in the Pacific expected to be over 2.5 degrees Celsius above historical averages. Such a powerful El Nino could disrupt global weather patterns, likely resulting in milder winters for the northern United States, including New England.
For Connecticut, this translates to a forecast of warmer-than-average winter temperatures, though precipitation may still be significant. Despite a potential decrease in the number of named Atlantic hurricanes due to increased wind shear, the risk of powerful storms and hurricanes persists. Historically, even in El Nino years with fewer storms, significant events like Hurricane Andrew in 1992 have occurred, underscoring the need for continued preparedness.
El Nino is a periodic warming of equatorial Pacific waters that influences weather globally. While typically occurring every three to four years, "Super El Nino" events are exceptionally rare, with only five documented since 1950. The impacts are most pronounced near the equator, but global weather systems are significantly affected, leading to varied conditions like wetter winters in southern U.S. states.