NPI
North Pacific Index
SLP anomaly 30–65°N, 160°E–140°W (Aleutian Low; negative = deep low). — Trenberth & Hurrell 1994
DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC
SLP anomaly 30–65°N, 160°E–140°W (Aleutian Low; negative = deep low). — Trenberth & Hurrell 1994