This year's weather predictions are calling for a strong to very strong El Niño (also known as a "Super" El Niño), which could bring fast-changing conditions that strain power lines, local utilities, and the grid.
According to the National Oceanic and Atmospheric Administration (NOAA), El Niño continues to strengthen, with a strong-to-very strong event likely through January–March 2027. NOAA also reports an 83% chance it could reach historic strength from October through December.
The 2026 El Nino winter is expected to impact all regions of the US. Learn how your region might be impacted and how a whole home generator can help keep you prepared.
Nearly a quarter of all power outages are due to winter storms.
Backup power can help prevent food spoilage, maintain heating and cooling systems, reduce the risk of frozen pipes, ensure personal devices stay charged, and keep security systems operational.
El Niño starts with unusually warm water in the Pacific Ocean, but its effects don’t stop at the West Coast. Those warmer waters can change weather patterns across the country, influencing where rain, snow, wind and severe weather show up. That can bring disruptive conditions closer to home and increase the potential for outages across all regions of the country.
Not every region within the United States will experience the same El Niño weather pattern. Based on meteorologist predictions, here's what you can expect this winter in your region.
A warmer winter outlook can sound reassuring, but it doesn’t rule out disruptive weather. Snowfall may be less consistent, temperatures can change quickly and fast-moving storms can still bring snow, ice and damaging winds.
Those conditions can weigh down trees and power lines, increasing the potential for outages. That’s why winter storm preparation still matters, even when the winter forecast appears milder than what you’re used to.
El Niño across this region can mean wetter, stormier conditions instead of deep snow. Heavy rain, flooding and severe weather can cause problems on their own. Add a short period of freezing rain, snow or ice, and roads, trees, power lines and local infrastructure can quickly feel the impact.
Bottom line: It doesn’t take record snowfall to cause a disruptive outage. Making preparation part of your winter plan can help you stay ready.
When winter El Niño weather threatens your power, you can do more than hope it stays on. You can have a plan: an automatic whole home backup generator.
From extreme cold and snow to heat and heavy rain, Generac home standby generators are engineered to perform. A durable, corrosion-resistant enclosure, improved cold-weather starting and design features that help limit snow, ice and water intrusion provide dependable backup power when you need it most.
Founded in 1959, Generac was the first to engineer affordable home standby generators, along with the first engine developed specifically for the rigors of generator use, and is now the #1 manufacturer of home backup generators.
