Thunderstorm Wind — Boulder, Colorado

2023-07-31 · near Superior, Boulder, Colorado

Wider weather episode

Severe thunderstorms produced heavy rain, large hail and damaging wind across parts of Boulder, Denver, Elbert, Larimer and Weld counties. One tornado touched down briefly near Carr, but no damage was observed. Hail up to half dollar size was observed, along with peak wind gusts around 60 mph. Heavy rainfall, up to 3.64 inches, produced flooding and flash flooding around Fort Collins and Livermore in Larimer County. Vehicles were stuck in up to 3 feet of standing water. Water from heavy rainfall filled the lagoon and surrounding retaining walls near the Lory Student Center on Colorado State University's main campus in Fort Collins. At least four buildings on campus were damaged by floodwater, university officials said. In the Cameron Peak burn area localized flash flooding was observed. Buckhorn Road was impassable from 1 mile east of Moose Ridge Road to Forest Road 129. In addition, multiple mudslides forced the closure of Highway 126 in Jefferson County.

View location on OpenStreetMap → (39.9700, -105.1900)

Source: NOAA Storm Events Database, event_id 1123521. Narrative written by the NWS forecast office that issued the report.