Dual Pol Data - 2349 - 2357 UTC
Notes:
The data on this slide shows 0.5 degree reflectivity (upper left), storm relative motion (upper right), ZDR (lower left) and KDP (lower right) around the time of tornado touchdown. The sequence on these slides shows a maximum of ZDR, associated with large rain drops, wrapping into the hook echo around the time of tornado touchdown, while the maxima of KDP, associated with heavier rain and smaller drops, pulls north of the hook. This separation of maxima of ZDR and KDP has been observed in other tornadic events, and is believed to be caused by drop size sorting associated with strong, localized low-level shear.Switch images by moving your mouse pointer over numbered buttons...
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Slide 23