I believe the idea that El Niño builds up slowly in summer to full strength in winter is not supported by the long term data, which show that most El Niño events initiate in spring or late in the year and not in the summer. Please check this out. Additionally, I am also eager to know the effects of El Niño little brother in Central America, where El Niño normally brings below average rainfall and La Niña above average. This year, La Niña conditions started in August with the second part of the rainy season, but the precipitation in the Caribbean Coast of Nicaragua did not experienced the expected increase in precipitation. Can we infer that it is possible that El Niño little brother was responsible for this? I ask this question because I noted that the Atlantic water temperature has been above average and therefore it is likely that the El Niño little brother was on. Please verify the latest and comment on this subject.