NAM forecast soundings at SYR - 09z and 12z

Notes:

9 and 12 hour NAM forecast soundings at Syracuse valid at 09z and 12z on the 13th are shown on this slide. The mean flow is forecast from 286 degrees at 09z and 291 degrees at 12z, which often favors heavy lake effect snow just to the north of Syracuse. The boundary layer is moist and well-mixed up to around 650 mb at 09z and about 700 mb by 12z. Both soundings indicate a dendritic snow growth layer from 900 to just above 850 mb.

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Slide 7