Discussion
Which curve on a hodograph indicates high streamwise vorticity?
Answer: B
Curvature of the hodograph means the shear vector turns with height, which produces vorticity aligned with the storm relative flow and hence large helicity. A straight hodograph gives crosswise vorticity and split storms rather than a dominant rotating updraught. A hodograph of zero length means no shear at all, and a closed hodograph implies no net shear across the layer.
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