Stormy Pattern Ahead

The Madden Julian Oscillation (MJO) index is entering phase three – favoring an amplifying trough of low pressure to set up shop across the Mid-Atlantic and New England states.  This trough (broad dip in the jet stream) will produce cooler than average temperatures along with the potential for three major storm systems to impact our area.  In addition to some moderate to heavy rainfall and the potential for some stronger/severe thunderstorms, the Appalachian mountains could receive some heavy, wet snow.

The next image shows the temperature anomalies in April which correlate with the eight phases of the MJO (notice how cold phase 3 is in the next image).

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