snowman19

We are about to catch up to and surpass 1997 in the eastern ENSO regions: I would echo nearly all of this--the far east Pacific subsurface was warmer in 1997 at the same date, because a huge westerly wind burst occurred late May into early June that year that didn't occur this year until the end of June into July, but that event will more than catch up the signal, because it will engage a 30C isotherm east of the Dateline that was absent in 1997.

@Lakepaste25

The models continue to show the WPAC, CPAC and EPAC waking up with TC’s. This is only going to keep the WWB train going and going….

This +QBO is actually helping to magnify and strengthen this super El Niño. It’s supporting a more robust MJO which enhances the WWBs/westerlies, DWKWs and warming; both surface and subsurface. It’s also helping to support strong ocean-atmosphere coupling (Bjerknes feedback). Once the +IOD gets going, it’s going to constructively interfere with this process even further. A record-breaking historic event is all but guaranteed at this point: “+QBO is not the engine of this chain; it is the stratospheric background modulator that determines under what conditions tropical convection can become more organized and persistent. A favorable vertical phase structure can support the deep convection of the MJO and upper tropospheric divergence by altering the temperature and stability field around the tropopause. The strengthening of the convective core over the Western–Central Equatorial Pacific, in turn, reorganizes the surface pressure gradient, increasing the likelihood of westerly wind anomalies and the development of Westerly Wind Bursts. Sufficiently strong and persistent WWBs transfer eastward momentum to the ocean; downwelling Kelvin waves, which induce downward displacement in the thermocline, transport the warm water volume to the central and eastern Pacific. This deepens the thermocline, paves the way for surface warming, and—if the existing ocean heat content is adequate—can strengthen ENSO coupling through the Bjerknes feedback. However, this process is neither linear nor inevitable; the ultimate response depends far more on the position and amplitude of the MJO, the duration of the WWB, the initial SST pattern, the state of the trade winds, and the preconditioning of the ocean than on the +QBO phase. The schema therefore represents not a definitive cause–effect chain, but a multiscale and state-dependent framework of tropical interactions extending from the stratosphere to the ocean.” ^ https://x.com/atmoslabwx/status/2074977555782996458?s=46&t=NChJQK9_PUjA1K7D2SMojw

“The 2026-27 El Niño is simply astonishing. Tropical Pacific waters are running nearly 7 weeks ahead of where they’ve ever been at this point in an El Niño cycle in modern history. Models now put the peak strength at 3.6°C on the Relative Oceanic Niño Index (RONI), the new standard for measuring El Niño that adjusts for background ocean warming from climate change.”

Last year vs this year at this time, ENSO and the PMM stealing the show….

Since we are very likely going to be in uncharted territory by early November with the warm pool pushed all the way to 140W (along with a record-breaking super El Niño in place for that matter), we aren’t going to know how the atmosphere reacts to that massive change in the global heat budget and the realignment of the ENSO Hadley Cell….where does it put the main forcing/standing wave convection? How far east does it go? We are going to have to wait and see what happens at that point in time….

This event is in runaway strengthening. The subsurface warmth is just as crazy as the surface warmth in regions 3.4, 3 and 1+2. And we are about to see a barrage of TC’s that are just going to keep reinforcing the WWBs/westerlies and DWKWs. That 30C isotherm is going to reach 140W easily this fall… @LakePaste25 30kt westerlies to 120W lol

Region 3.4 record-breaking: Region 1+2 also off the charts, the only El Niño event in history that was warmer in 1+2 at this point in time was 1997 and it wasn’t warmer by much

I don’t see any reason whatsoever to doubt it gets to 120W by November like the Euro seasonal shows, it’s already east of the dateline and still being pushed by the WWBs

100%. The 30C isotherm is already east of the dateline and the EURO seasonal started showing this happening last month, projecting that the 30C isotherm will push all the way to 120W by November, which would be an all time record. I absolutely believe it given the huge WWBs we’ve been seeing since April. This year, unlike 2015, we have a complete trade wind reversal with WWBs/westerlies and DWKWs pushing well east of the dateline with no resistance….that is going to keep pushing the 30C warm pool east. We didn’t see that in 2015, in fact, we actually saw EWBs and the trade winds fighting back even up to this point in time…this year, not even close. The surface from region 3.4 to region 3, to region 1+2 is warmer and the subsurface is warmer than 2015 with more substantial WWBs and DWKWs. Region 4 is actually cooling now, also unlike 2015. The TC/typhoon parade projected to begin this month in the WPAC and the EPAC and the MJO progression is only going to reinforce it (WWBs, DWKWs) Wow:

https://x.com/hombredeltiempo/status/2074089660733661350?s=46&t=NChJQK9_PUjA1K7D2SMojw