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FORECAST CONTEXT

DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC

ERA5 + GFS2.5°DAILY
BriefingOfficial indicesOfficial · Oceans & ENSO
PMEL_WWV

Warm Water Volume (PMEL)

Volume above the 20 °C isotherm, 5°N–5°S, 120°E–80°W; ENSO recharge (leads Niño 3.4 by 6–9 months). — Meinen & McPhaden 2000 · base none (total)