700 mb heights / 850-500 mb frontogenesis

Notes:

At 700 mb, the wave was forecast to move east across southern New York. The wave was forecast to intensify slightly, but remained open through 12z on the 31st. An axis of 850-500 mb frontogenesis was forecast just north of the track of the 700 mb low.

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Valid Wed 0000 UTC 31-Dec-2008

Valid Wed 0600 UTC 31-Dec-2008

Valid Wed 1200 UTC 31-Dec-2008

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