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Amplitude & phase, last 2 years
Where the Madden-Julian Oscillation is right now, how strong it is, and every past episode since 1979.
ERA5 © ECMWF / C3S · OLR and MJO indices © NOAA PSL
MJO forecasts official model RMM forecasts from NOAA CPC, updated daily · phase diagrams show the last 40 days of observations plus the forecast track
Equatorial OLR anomaly Hovmöller 10°S–10°N, NOAA interpolated OLR, negative = enhanced convection
OLR anomaly map daily, through the selected episode
Daily anomalies at the pin through the episode
Raw daily anomalies vs the 1991–2020 climatology, 7-day running mean overlaid. Set the pin on the Pin & odds page.
Phase climatology share of days in each phase by month, 1979–2025
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