850-700 mb lapse rates

Notes:

At mid-levels, lapse rates over much of New York and Pennsylvania were quite stable through mid-evening, before a surge of unstable air arrived from the southeast late in the evening.

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[2100 UTC 29-Oct-2012]  [0000 UTC 30-Oct-2012]  [0300 UTC 30-Oct-2012]  [0600 UTC 30-Oct-2012] 
slide 32


Slide 32