Cold North Atlantic Returns as Super El Niño Reshapes Winter 2026/27 Outlook
A renewed cold North Atlantic ‘cold blob’ is reemerging as a very strong Super El Niño develops in the Pacific, with forecasts showing a positive PNA pattern that could yield a mixed but impactful winter for 2026/27: warmth in the Pacific and Gulf Stream area, but persistent cold spells likely across eastern North America and Europe, consistent with past Atlantic–El Niño interactions.