Here, I’ll give you a more readable version of the graphic from NOAA:

The chance of an the Pacific ENSO system being neutral, meaning, not adding extra heat to the atmosphere and not removing extra heat form the atmosphere, is about 50% from now through mid 2017.

But, the chance of a la Nina is pretty darn low, and the chance of an El Nino, which would add more heat to the atmosphere than the average year, is not only approaching 40% but it has been growing.

A second El Nino this close on the last one, which was a very severe El Nino, will not be as strong because there is that much heat stored up in the Pacific. A lot of it came out last time. But there is a fair amount left in there, so we could have a real, if not major, El Nino event this summer or fall.

Or not. This is really up in the air, as it were. But it is a little unusual to see a second El Nino this close in time, so I thought you might find this interesting.