The Midwest is having a 'non-winter.' El Niño is only partially to blame

Record ocean temperatures likely to blame for Minnesota's weird non-winter

MRCC - ENSO Impacts

Why Is Record Cold and Epic Snow Hitting U.S. So Early?

Severe weather across US impacts travel at nation's largest hubs

The swings between El Niño and La Niña - NOAA Climate.Gov

Meteorologists say this year's warm winter provided key ingredient for Midwest killer tornadoes

The Extreme Weather Isn't Ending With Summer - The Atlantic

An El Niño winter is likely and that could mean big weather changes – NBC Chicago

El Niño and its Effect on the Southeast U.S.

Study offers conflicting theory as to trigger of exceptional South American drought

Spring snowfall in parts of northern US follows mild winter of canceled ski trips and festivals, Illinois News

It's Florida's Cloudiest Winter In More Than 80 Years. El Niño Is A Factor.

Deadly cold overspreads US with freezing temperatures felt from border to border