250 mb

Eta forecast 250 mb heights, wind speed and divergence (red) at 21z on the 11th)

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Speaker Notes:

A large area of upper level divergence can be seen downstream and especially in the left exit region of the speed maximum over the Ohio Valley at 21 UTC on the 11th. This would appear to put all of New York and Pennsylvania in a quadrant favorable for deep large-scale forcing for upward motion.

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