Summary of Ocean Oscillations:
ENSO, PDO and AMO are the three main ocean oscillations, there are several, less dominant ones, such as the Arctic Oscillation (AO or NAM), Interdecadal Pacific (IPO), Madden-Julian Oscillation (MJO) and the Quasi-biennial Oscillation (QBO).
ENSO is in a neutral phase, tending to La Nina (cooler). The PDO is tending to cooling phase and AMO is about to change to its cool phase. Along with the low solar cycle, it makes for interesting times.