We haven't seen many of these Ninos this strong and having this much of an influence on the pattern, so sample size is small. It's a classic split flow pattern that is ripe to produce heavy rain. To blame this on AGW is simply irresponsible. Of course the world has warmed, but attribution to AGW with this specific event is pretty much useless. Split flow Patterns are stubborn to break. The same split flow pattern produced a warm and dry east and far NW.