noun (plural derechos)US
A storm system that moves a long distance rapidly and brings winds which can devastate an area several miles wide.
- I would like to know what scientific writings about bow echoes and derechos have been published.
- When the bow echo bulge reaches 80-320 km wide, the derecho has been born.
- View a radar animation of the derecho as it passed through the area.
Late 19th century: Spanish, literally 'direct, straight'.
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