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Steve Horstmeyer's - Inside The Forecast: Moore, OK May 20, 2013 Tornado Hook Echo (Annotated)
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Classic “Hook Echo” radar signature moments ago on this tornado producing supercell near Vancourt, Texas! 🌪🌵 | By Meteorologist Nash Rhodes WINK | Facebook
Radar Signatures for Severe Convective Weather: Hook Echo, Print Version
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Locating Tornadoes: hook echoes and velocity couplets
Locating Tornadoes: hook echoes and velocity couplets
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Radar Signatures for Severe Convective Weather: Hook Echo, Print Version
Stu Ostro on Twitter: "Extreme hook echo, debris ball, & 3-D rotation of the #Moore #Oklahoma #tornado My thoughts r w/those affected :( http://t.co/mkswNlSGIL" / Twitter
Hook echo - Wikipedia
Radar Signatures for Severe Convective Weather: Hook Echo, Print Version