Eta 6 hour forecast theta-e (red), relative humidity (green) and EPV (negative shaded blue) valid 1/6/05 18 UTC.

banding diagnostic

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Speaker Notes:

The data on this slide is the same as on the previous slide, except that the valid time is 18 UTC on the 6th. Again, note the negative EPV (indicated by the blue shading), located just above sloping frontal zone over eastern Pennsylvania.

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