Unformatted text preview: mesocyclone appears as a hook on radar imagery)-wall cloud-the base of the cloud appears lower than the rest of the cloud, signals potential tornado; how does speed shear cause tornado genesis near the mesocyclone? stronger winds pass over weaker winds, creating horizontal spinning, which leads to convective thermal rising that shifts the horizontal spinning vertically (this vertical column becomes the mesocyclone)-advantage to using Doppler-able to measure velocity of precipitation (also tells if precipitation is rotating in cloud); Tornado Vortex Signature (TVS, where outbound and inbound velocities meet, indicating wind rotation; this indicates location of mesocyclone)-the Atlanta Tornado (March 14, 2008)-unusual track (northwest to southeast), occurred in unusual place relative to cold front; happened during SEC basketball tournament in the Georgia Dome...
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- Spring '08
- Thunderstorm, Strong Rotating Winds, signals potential tornado, cause tornado genesis, Tornado Vortex Signature