8A.6 Using the Downdraft Convective Inhibition (DCIN) to Evaluate Severe Weather Threats from Elevated Convection

Wednesday, 6 June 2018: 9:30 AM
Colorado A (Grand Hyatt Denver)
Kevin Grempler, Univ. of Missouri, Columbia, MO; and P. S. Market, C. B. Henson, and S. Ritter

Several dozen cases of severe weather from elevated convection are evaluated, and compared to cases of non-severe elevated convection. Representative soundings were examined for each of these cases, in particular the downdraft convective available potential energy (DCAPE), the downdraft convective inhibition (DCIN), and the ratio (DCIN/DCAPE) between them. Ongoing analyses support the idea that surface-level winds meeting the severe criterion (>50 kt) are curtailed when DCIN/DCAPE > 1. Although not sufficiently robust to constitute a climatology, the spatial and temporal characteristics of these severe events is also examined.
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