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THUNDERSTORMS AND TORNADOES. by Ernest M. Agee. An aerial view of a classic supercell thunderstorm above southern Maryland on 29 April 2002. At the time this photograph was taken this storm was producing twin tornadoes. Two mini-tornado cyclones and associated
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THUNDERSTORMS AND TORNADOES by Ernest M. Agee
An aerial view of a classic supercell thunderstorm above southern Maryland on 29 April 2002. At the time this photograph was taken this storm was producing twin tornadoes.
Two mini-tornado cyclones and associated wall clouds in Fort Cobb, Oklahoma.
Two mini-tornado cyclones each producing a single vortex tornado near Canadian, Texas (7 May 1986).
Multiple vortex tornado, Tm, near Friendship, Oklahoma (May 1982).
Multiple vortex columns in the formative stages of the Jarrell, Texas tornado of 27 May 1997.
Left: Radar image from the Quad Cities containing two supercells with well defined hook echoes (5:00 pm; 4/30/03). Right: Radar image from Tulsa, OK containing a squall line with embedded supercells ( 6:25 pm; 5/6/03).
Left: Radar image from San Angelo of squall line with bow echo and embedded supercells (4:30 pm; 4/7/02). Right: Radar image from Freederick, OK containing a supercell well defined hook echo (3:00 pm: 3/17/03).
Left: Radar image from Dallas/Forth Worth containing three supercells all with well defined hook echoes (9:20 pm; 4/5/03). Right: Radar image from Frederick, OK containing a supercell with a well defined hook echo (5:08 pm; 4/5/03).
A Doppler radar image of a supercell thunderstorm near Oklahoma City on 3 May 1999. The image on the left shows a nice example of a hook echo radar feature that sometimes accompanies the mesocyclone. The image on the right shows the indication of the TVS, identified by ▼.
Horizontal flow relative to moving storm at 6.4 km above ground. Lengths of arrows are proportional to relative wind speed.