Thunderstorm Wind — Grand, Colorado

2011-06-30 · near Granby, Grand, Colorado

Event narrative

Intense straightline winds from a severe thunderstorm knocked a 50-foot tree on to a roof. Fences were also toppled and shingles removed. Several loose objects were lifted and tossed.

Wider weather episode

Severe thunderstorms produced intense straight-line winds in Granby, causing extensive damage. Town officials in Granby estimated at least 30 trees were knocked down from the storm, just within the city limits. At least two roofs were separated from the buildings themselves. The damage to the high school alone was estimated to be at least $200,000. Debris from the wind blew out vehicle windows. Power was knocked out temporarily in several areas throughout Grand County. A hiker near Grand Lake was injured when a falling tree hit struck her and injured her ankle. Very strong thunderstorm winds were also observed across portions of the Urban Corridor and Northeast Plains of Colorado. An intense microburst wind destroyed a ferris wheel in Merino and caused one minor injury. A lightning strike destroyed a home in north Denver.

View location on OpenStreetMap → (40.0900, -105.9400)

Source: NOAA Storm Events Database, event_id 317628. Narrative written by the NWS forecast office that issued the report.