NAM forecast sounding valid 20z at BGM

Notes:

This NAM forecast sounding valid at 20z at BGM in central NY indicated the development of substantial instability with MLCAPE values exceeding 2000 J/kg, however the dry mid-level air is also quite evident. A layer of very steep lapse rates can be seen at the bottom of the dry layer around 700 mb, contributing strongly to the instability.

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Slide 7