Weather forecasts for the past several years always seem to come with the subtitle, "Where is El Nino?"
This year, the infamous El Nino, a mass of warm water in the Pacific Ocean that creates sufficient atmospheric turbulence to move the jet stream, dominated the winter and spring, but has taken a break this summer. And it won’t likely be seen the rest of the year, experts say.
In its place is La Nina, characterized by below-average sea-surface temperatures. But that is showing itself slow to emerge, leaving what Chris Anderson, assistant director of Iowa State University’s Climate Science Program, calls "typical conditions."