Hail in Boulder County, Colorado

Hail August 10, 2025 · Boulder County, Colorado

1 in

Hail diameter

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

The report was from mPING.

The wider storm

Strong to severe thunderstorms develop across northeast Colorado. Large hail was the main impact. A brief tornado form east of Denver over the open plains. No damage was reported with the tornado. Numerous photos and reports were passed along to the National Weather Service.

Began near Niwot (40.0600, -105.1600).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

EFU Arapahoe County

Source: NOAA Storm Events Database, event 1272006. Narratives are written by the National Weather Service forecast office that issued the report.

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