Super El Niño US Winter Forecast 2026–2027
By Sustainability Awakening • Dr. Ahmad Mahmood
PACIFIC
+3.3°C SST Record
Weekly Niño 3.4 sea temperatures hit a record +3.3°C anomaly.
Source: NOAA CPC
JET
Active South Track
Pacific heat fuels winter storms from California to Florida.
Source: NOAA Outlook
WEST
Atmospheric Rivers
California and the Southwest face higher odds of heavy rain.
Source: CW3E Scripps
WATER
Lake Mead Snowpack
Southern Rockies snowpack could bring relief to Lake Mead.
Source: USBR 2026
NORTH
Milder PNW & Lakes
A split jet stream leaves the PNW and Great Lakes warmer.
Source: NOAA CPC
VORTEX
Stratospheric Shift
Sudden stratospheric warming can still unleash Arctic snaps.
Source: Nature / NOAA
GRIDS
ERCOT & PJM Risk
Polar vortex dips test ERCOT and PJM winter reserve margins.
Source: NERC 2026
SB 253
10 Nov CA Deadline
US firms >$1B in California face SB 253 filing on 10 Nov.
Source: CARB 96070
DATA
Track RONI Live
Compare 2026–27 with the 1997 and 2015 Super El Niños live.
Source: SA Tracker
LIVE
Open ENSO Tracker
Explore live Pacific SST anomalies and US winter impacts.
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