Thurman is an unincorporated rural hamlet in Washington County, Colorado, United States.
[5] On Sunday, August 10, 1924, storm clouds were forming after an unusually hot day with temperatures reaching 96 °F (36 °C).
Suddenly things became quiet, but the clouds turned a dark black color; at about 1:00 pm, two local farmers spotted a large 0.5 miles (0.80 km) wide tornado about 3 miles (4.8 km) to the west.
The tornado, which traveled in a north-easterly direction, struck Thurman with winds exceeding 210 mph (340 km/h) and demolished almost every building.
After the tornado, the population declined and many who survived moved to nearby towns and the post office closed.