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| Fig. 5. Storm relative motion (SRM) and base velocity four panel from the Sioux Falls WSR-88D at 1231 UTC 2 August 2001. The image is centered west of Sioux City Iowa. The elevation angles shown are as follows: upper left - 0.5 degrees SRM, upper right -1.5 degree SRM, lower left - 3.4 degrees SRM - and lower right, 0.5 degrees base velocity. |
