I wouldn't place any stock in forecasts based on the current El Nino. This year's version has not behaved like prior El Nino events. For example, in a typical El Nino year, California is supposed to get lots of rain and the midwest and northeast are supposed to be mild and dry. Actually, the opposite has occurred. California has been hot and dry, while areas east of the Rockies are experiencing the snowiest winter in years. IOW, the effects of El nino have been offset by other global influences so far this winter.
El Nino's effect on Florida is normally more pronounced during the winter months. Florida winters are cool and wet during El Nino years. When summer rolls around, El Nino's biggest impact is that there are fewer tropical storms and hurricanes.