Derechos Hit Across US Heartland

[Sand_Pebble]

This '18 gcaptain thread does a superior job of describing what a derecho is for any newcomers & those who missed it.

What is a “derecho”?

What is a “derecho”? - NWS [image] Essentially, a “derecho” is a long-lived, rapidly moving line of intense thunderstorms that produces widespread damaging winds in a nearly continuous swath. By definition (according Johns and Hirt, 1987), the term “derecho” applies to a complex line of thunderstorms that travels a minimum distance of 240 miles (~400 km) or more, and produces a nearly continuous and widespread swath of damaging winds over that distance, with concentrated areas of wind speeds …