I see your point, but there are other issues to consider. The beam width for the WSR-88D may not allow a tilt to go that low without a significant amount of its radiated power hitting the ground. Consequently ground clutter will also increase. And don’t TWDRs emit less power than the WSR-88Ds do? (250 kW vs. 750 kW?)
Unfortunately the laws of physics may be a worse enemy than the weak hit-and-run tornado!
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