Thunderstorm Wind — Delta, Colorado

2020-06-06 · near Grand Mesa, Delta, Colorado

Event narrative

Wind gusts estimated to be in the 70 to 75 mph range uprooted some very large trees and caused damage to cabins and vehicles.

Wider weather episode

A negatively tilted trough moved through western Colorado on the morning and afternoon of Saturday, June 6th, causing a widespread severe weather event that would become the first derecho to impact the Western Slope in well over a decade. Severe storms produced wind gusts upwards of 60 to 80 mph on average with some gusts topping 80 to 100 mph in some areas due to strong downburst winds. There were multiple reports of uprooted trees, downed power lines, at least one roof was torn off with others damaged, and several houses/cabins and vehicles were damaged by falling trees and/or large hail. Very heavy rain also fell which led to flash flooding in some areas.

View location on OpenStreetMap → (39.0400, -107.9600)

Source: NOAA Storm Events Database, event_id 888432. Narrative written by the NWS forecast office that issued the report.