September 30, 2015 6:40 pm What Brings El Ñino Rain Chief Meteorologist Jeff Ranieri examines one of the main factors that helps to bring major rain potential during El Ñino. US & World Videos 2:48 Jeff's Forecast: Dry Friday; rain returns this weekend 3:48 Jeff's Forecast: Weekend rain timeline 2:42 Forecast: Warm day, Saturday rain 1:43 Kari's forecast: Warm day, Saturday rain 2:04 Jeff's Forecast: Weekend rain update