2026-2027 El Nino

[snowman19]

[bluewave]

20 hours ago, roardog said:

It’s not just 2023 though. Didn’t Nino years like 1976(or was it 1977) and 2002 do the same? I know 2002 had April heat and a very cool May. Obviously those years didn’t end up being strong Nino. I think it’s more of just a “Nino thing” regardless of eventual strength.

Yes, we have had numerous 90°+ events in the Northeast during developing El Niños in April. But the 500mb forecast most closely matches 2023 with a shift to strong blocking. Makes sense since this one is coupling with the atmosphere and is much stronger early on like 2023.
 

 

[LakePaste25]

Can really see how things start to diverge in terms of position of the warmest SSTa’s after December. With Nino 1+2 warmth (east-based), Jan and Feb are also warm. With Nino 3.4, the correlation starts to break in Feb. With Nino 4 (central to west pacific), it actually correlated to a cold Feb. So while December is universally expected to be mild regardless, whether we get a backloaded winter or near wall to wall torch is based on whether the anomalies are focused on the Eastern Pacific vs Central.

 

[GaWx]

1 hour ago, LakePaste25 said:

 

 

 Based on the above maps for Jan, I’m going to consider renting a place in Anniston, AL, just for that month. 

[roardog]

I see the SOI has gone strongly positive in the last couple of days. I don’t know how long that’ll last though.

[snowman19]

Subsurface anomalies over +5C showing up:

[GaWx]

42 minutes ago, snowman19 said:

Subsurface anomalies over +5C showing up:
 

The 5+ is centered pretty far west (140-160 W, which is west central 3.4. Hoping that’s a sign that El Niño will be center to west based like Cansips suggests and not east based like NMME shows.

[so_whats_happening]

Well this was quite the surprise to see

https://psl.noaa.gov/enso/mei/

Feb/Mar MEI at -1, responses were starting to show in March but I will be curious if Mar/Apr will start to move toward neutral at least. While oceanic response seems to be there atmospherically something is off.