- PSU E-Wall
- Tropical Tidbits
- Hurricane Model Plots
- Metrogram Generator
- Harris WeatherCaster
- ISU Automated Data Plotter
- Experimental NWS Graphics
- NCEP SREF Plume Forecasts
- WPC Short Range Surface Forecast Maps
- Climate Prediction Center - Teleconnections
- NOAA ESRL Historical Temperature Anomalies
- NOAA ESRL Historical Divisional Temp/Preicp Anomalies
So what is the MJO?
For the MJO to be considered active, this dipole of enhanced/suppressed convective phases must be present and shifting eastward with time. An animated illustration that depicts the global scale and eastward propagation of these two phases of the MJO is shown here (Fig. 2: animation).
What’s behind the pattern?
In the suppressed convective phase, winds converge at the top of the atmosphere, forcing air to sink and, later, to diverge at the surface (Rui and Wang, 1990). As air sinks from high altitudes, it warms and dries, which suppresses rainfall.