Hook echo facts for kids
A hook echo on the radar image of the May 3, 1999 supercell thunderstorm that produced an F5 tornado in Moore, Oklahoma.
A hook echo is a hook shape seen on a weather radar of some supercell thunderstorms. It is produced by rain, hail, or even debris wrapping around the thunderstorm. A hook echo is a sign that a tornado has formed or is forming. If a hook echo is seen on radar, the National Weather Service may issue a tornado warning.
Images for kids
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Images of Doppler velocities on the left. Around these reflectivities on the right in a thunderstorm during the VORTEX2 project in Goshen County, Wyoming. Data comes from a Doppler on Wheels radar. A hook echo is seen as the appendage on the bottom-left on the reflectivity image.
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Hook echo Facts for Kids. Kiddle Encyclopedia.