Cross-sections
Notes:This time loop cross-section of frontogenesis and vertical motion, consisting of 6 and 12 hour forecasts from the NAM, showed a weak area of lift associated with shallow frontogenesis over central New York at 06z, around the time that the isolated storms developed. A deep, much stronger region of frontogenesis can be seem developing southern New York and northern Pennsylvania by 12z, as a deeper, stronger frontal zone approaches from the south. The widespread rain with embedded thunderstorms appeared to be associated with this frontal zone. |
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Valid Wed 0600 UTC 23-Jul-2008 Valid Wed 1200 UTC 23-Jul-2008 |
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Slide 12