El Nino Update

90 Day Forecast Map

The big weather story continues to be the strengthening El Niño across the Pacific. As we move through the summer months, El Niño is expected to continue intensifying and likely reach its peak sometime during the fall.

What's interesting is that despite all the headlines surrounding this event, we really haven't seen widespread extreme weather that can be directly attributed to El Niño just yet. Yes, we've seen periods of heavy rainfall across portions of the nation's midsection and the usual rounds of severe weather during the spring season, but overall, the atmosphere has behaved fairly close to what we would normally expect.

The biggest question now is just how strong this El Niño becomes.

Some forecasts suggest it could approach a value near 3.5, while others keep it somewhat lower. For perspective, the strongest El Niño events on record have generally peaked around the mid-2 range. If we were to see a 3.5 event, we would be entering territory that has little historical precedent.

That's what makes forecasting the long-term impacts so challenging. When you're dealing with something that may exceed anything we've observed before, there simply isn't a perfect analog to compare it against. At that point, meteorologists can only use historical guidance, model projections, and their best judgment.

Looking ahead to winter, I'm not making any major changes to the forecast at this time. Most indications suggest El Niño will begin weakening as we move through the winter months, likely settling into a more moderate event by January. If that occurs, the heart of winter may actually arrive during January, February, and March rather than early in the season.

That doesn't mean winter can't make an appearance before then. If we see strong coastal storms develop during November or late fall, some of the higher elevations across the Northeast could certainly see snowfall. But at this point, there is no strong signal suggesting an early start to winter like we experienced in some previous years.

For now, the forecast really comes down to two questions: How strong will this El Niño ultimately become, and what are the real-world impacts of an event that may be stronger than anything we've observed in the modern record?

Those are the questions we'll continue to watch as we head deeper into summer and toward the fall season.