El Niño officially began on June 11, 2026 [1], with forecasts suggesting it will intensify into a very strong or “Super” El Niño.
This shift in Pacific Ocean temperatures alters atmospheric circulation on a global scale. Such events typically disrupt established weather patterns, affecting agriculture, water supplies, and temperature norms across multiple continents.
According to the CNN Weather Team, the event is forecast to bring major shifts in global weather patterns. The onset of this phenomenon marks the beginning of a cycle that can lead to extreme weather anomalies, ranging from severe droughts in some regions to heavy flooding in others.
In the U.S., the impacts are expected to be particularly evident in the Rocky Mountain region. Senior meteorologist Chris Bianchi said a strong El Niño typically brings warmer, wetter winters to the northern Rockies. He said these conditions can increase snowfall odds in the higher elevations of Colorado.
While warmer-than-average winter temperatures are anticipated for the region, the increased moisture often associated with El Niño can lead to higher snow accumulation in mountainous areas. This creates a complex balance for state water managers who monitor snowpack levels to predict spring runoff.
Meteorologists continue to track sea-surface temperature anomalies to determine the exact strength of the event. The official declaration on June 11 [1] allows climate agencies to begin refining their seasonal outlooks for the coming months.
“El Niño has officially begun, and it is forecast to intensify into a very strong or “Super” El Niño”
The transition to a 'Super' El Niño suggests a high-amplitude climate event that could override typical seasonal trends. For regions like Colorado, this creates a paradox of warmer overall temperatures coupled with an increased probability of heavy snowfall in high altitudes, which directly impacts winter tourism and long-term water security.
