Frontogenesis, omega and lapse rate cross-section
Notes:
These cross-sections show frontogenesis, omega and theta-e lapse rate forecasts from the NAM valid at 09z and 12z on the 28th, taken along a southeast-northwest oriented line from near Long Island to western New York. Strong upward motion can be seen near and just to the southeast of the frontal zone, coincident with a region of negative lapse rates. The front appears to become steeper with time. In many ways, this cross-section indicates an atmospheric structure similar to what would be seen in a winter storm, with strong precipitation banding.
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Valid Sun 1200 UTC 28-Aug-2011 Valid Sun 1500 UTC 28-Aug-2011 |
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Slide 14