#OMAHA RADAR IN MOTION VERIFICATION#
Observed magnitude of the right-moving supercell motion deviation from the 0–6-km mean wind (m s −1) vs the (a) 0–6-km shear magnitude (m s −1), (b) 0–3-km SRH (m 2 s −2), and (c) 0–6-km mean wind (m s −1) for the 260 right-moving supercells.īox-and-whiskers plots for the absolute errors in predicting right-moving supercell motion using the methods discussed in the text for (a) the 130 hodographs from the verification dataset, (b) the 95 typical hodographs, and (c) the 35 atypical hodographs. The short-dashed lines represent the 0–6-km vertical wind shear, and the long-dashed lines are oriented perpendicular to the shear (discussed further in the text). The 0–6-km non-pressure-weighted mean wind is given as V 0–6km the observed supercell motion is given as V OBS the proposed method for predicting right-moving (left moving) supercells is given as V RM ( V LM)-see text for details and DJ93’s method for predicting right-moving supercells is given as either V 20R85 or V 30R75. Observed 0–8-km hodographs (m s −1) for (a) LIT, 0000 UTC (b) CRP, 0000 UTC (c) UNR, 0000 UTC (d) UNR, 0000 UTC and (e) Sidney, Australia, 0500 UTC.
See section 1a for definition of supercells, and section 1b for discussion of Galilean invariance. The cyclonic, right-moving (R) and anticyclonic, left-moving (L) supercell motions are noted for each of the three profiles with triangles M denotes the 0–6-km mean wind. Idealized 0–6-km hodographs (m s −1) demonstrating the Galilean invariance relationship between supercell motion and the vertical wind shear for three unidirectional wind shear profiles.
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