I greatly appreciate the link to Nat's blog post on the effects of a La Nina winter on the CONUS climate. Do you know whether anyone has done any in-depth analysis on switch years and whether these swift transitions from one ENSO state to another has more or less of an impact on US weather patterns than transitions that pause in the ENSO Neutral state? I appreciate your reference to the difficulty of teasing out the ENSO effects from the general climate change signal. With a steady increase in ocean temperatures, ENSO could end up taking a backseat when it comes to weather pattern influence.