MJO amplitude (VPM) — Forecast Context

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FORECASTCONTEXT.COM · THE LARGE-SCALE STATE BEHIND THE FORECAST BRIEFING MOTION OUTLOOK METHODS API ☀ AUTO

FORECAST CONTEXT

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

ERA5 + GFS2.5°DAILY

BriefingTropics & oceansMJO & intraseasonal

VPM_amp

MJO amplitude (VPM)

√(VPM1² + VPM2²). — Ventrice et al. 2013