3-D Radar Images From Dallas Tornado
Two tornadoes struck the Dallas area last night and were widely captured on video. The first one on the northwest side of town is shown in the radar images below (#1 on the map). I believe the one in the video at the bottom of this page is from the twister that was to the southeast of Dallas (the reports at #2; Dallas Metro area highlighted on the map below). You can read more about the storms and see pictures on Meteorological Musings.
In this 3-D visualization (images by GRAnalyst) the storm's core is shown at right with the hook echo producing the tornado at left.

With this cross-section we are looking the opposite direction with the hook echo and tornado on the right side of the image:

Here is the "classic" radar reflectivity image showing the hook echo. I also captured a storm-relative velocity image where you can see the couplet of red & green indicating rotation, and If you zoom out and go back in time a little, you can see the hook echo from the second tornado as well.

Here is the video of Tornado #2:
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