Strong El Nino Forecast for 2015/16 North American Winter: The International Research Institute of Climate Sociology (IRI) based at Colombia University, NY released their latest El Nino update today and they are calling for a strong El Nino for winter 2015/16. That IRI El Nino update states two important things: A weak to moderate El Nino is currently occurring will continue until July, 2015 A moderate to strong El Nino will develop this summer and continue into 2016. We only have 5 strong El Ninos on record in Northern California and 4 out of 5 of them delivered above average precipitation in California. Once El Nino cools […] Weather SnowBrains | May 21, 2015 7 Comments