Thunderstorm Wind in McCook County, South Dakota

Thunderstorm Wind July 27, 2025 · McCook County, South Dakota

59 mph

Measured gust (51 kt)

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

What the National Weather Service wrote

Thunderstorm wind gusts were measured by a Road Weather Information System sensor near Montrose.

The wider storm

Thunderstorms rapidly developed across northeast South Dakota into west central Minnesota during the early evening of July 27 within a volatile environment (MUCAPE 5000-6000 J/Kg) ahead of a southward moving surface boundary. These thunderstorms expanded into a mesoscale convective system and dropped south across the region through the remainder of the evening into the early overnight hours on July 28. Most reported wind gusts ranged from 55 to 65 mph with one location reporting a gust to 70 mph. Isolated tree damage was also observed across northwest Iowa.

Began near Montrose (43.6700, -97.1500).

Source: NOAA Storm Events Database, event 1288159. Narratives are written by the National Weather Service forecast office that issued the report.

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