<p>Warmer waters building in the tropical Pacific Ocean are suggesting an El Nino event developing late this year. Forecasts predict an event range from a moderate El Nino, to a so-called Super El Nino event, which could have dramatic effects on weather in Minnesota, the U.S. and the world.</p><br/><p>MPR News chief meteorologist Paul Huttner spoke with Andrew Freedman, a Senior Reporter for Climate &amp; Weather at CNN, who has reported on the event.</p>