40/70 Benchmark

I would like to see the ONI coupled at around 1.7 or lower, and I bet we would see a better winter independent of the Modoki index.

It makes perfect sense to me that if the essence of El Nino is anonymously warm water modulating the Hadley Cell via enhanced convective activity, then warming up the water to the west of ENSO is going to reduce it's ability to do so because the MC is going to rob the ENSO region of some of that convection....ie it's a competing force.

I am willing to bet that if we were to ditch the gap between the RONI and ONI, or even have the ONI lag the RONI, we would get lower heights in the southeast....my guess is in order achieve that we are going continue to have to see that western Pac warmth spread eastward, which would help to reduce that persistent, residual cool ENSO residue. Again, don't mistake me overvaluing the RONI in-and-of-itself....it's what it represents, which is the surplus of western Pacific warmth relative to the eastern Pacific reducing the ability of +ENSO to couple with the atmosphere, and thus modulate the northern Pacific in the manner that we would like.

I was wondering about that...how do we trust such aged data...that said, I am not going to contest the fact that ambient heights were lower back then.

2015 having a weaker se trough relative to 1997 is entirely consistent with what I am proposing, since the RONI lagged the ONI in 2025, and it did not in 1997. I made the same mistake in 2015 that I did in 2023 in mistaking the warmer west Pacific for more of a Modoki signal. I will not do that again.

Makes sense with descending solar....probably more to come next several years.

I'll bet we can salvage that...we just ended an incredible decade of predominately +WPO....it just flipped this past season, so probably due for continued regression there.

I hope so.

Yea, looks like WPO is going to be key to salvage a decent northeast snowfall season...only 1982 wasn't a disaster, which has a -WPO.

Probably, so I am willing to bet it will stink, aside from maybe one great storm. I don't feel as optimistic after seeing that RONI vs ONI relationship, as I was already leery of that after 2023.. Still plenty of time to and data to consider, though. I do wonder if we see that gap begin to close, though with the changes underway in the Pacific..that maybe what we need.

You are misunderstanding me....I know what RONI is...it's not the reading itself that I am concerning myself with. It's what it represents....we WANT the El Niño to correlate to the North Pacific pattern, so having the RONI lag the ONI does not mean that it's a "weaker" El Niño...it means that there is another force, likely of cool ENSO ilk, competing with the El Nino, and it's not forcing the north Pac pattern to a degree commensurate with the ONI intensity. If it were simply a weaker El Niño....it's probably more west-based and the Aleutian low is thus further west, which is favorable....but a lower RONI may mimic a west-based in the SST pattern, but actually has so much warmth in the western Pacific as to introduce more MC forcing than is typical in a potent El Niño. We'll see what happens have a lower RONI again in another strong El Niño.

@Stormchaserchuck1, I agree that the correlation tools have some utility, but I do think that @bluewave is onto something with the lower RONI being reflective of a negative impact for eastern winter enthusiasts....ie cool ENSO residue. Consider several moderate to strong El Nino events that were "good".....ie 1957, 1965, 1986, 2002, and 2009...EVERY ONE OF THEM had a RONI was at least equal to, or GREATER than the ONI.

That's my concern 2023...but then again, I'm not sure winter enthusiasts would feel any better if the RONI and ONI were in lock-step.

It works both ways...we get caught in brutal stretches for extended periods, like these past several years, but we can also go on a run, too....like last decade. Brutal periods are warmer and great periods are warmer and wetter.

That's what I have always maintained...if we hit like 2035 and are still in that pattern, then I'll capitulate....but the tide already seems to be turning. Obviously the world is warming....I'm not disputing that, but I'm just referring to the ability to discern the degree to which these patterns/phenomena are a byproduct of CC versus how much they are attributable to natural variation. The atmosphere is still cyclical...it's just warmer, and some of said cycles are becoming augmented and somewhat increasingly stagnated.