Thunderstorm Wind — Mills, Iowa

2025-07-10 · near Balfour, Mills, Iowa

Event narrative

Personal weather station measured wind gust of 61 mph.

Wider weather episode

On the evening of July 9th into the early morning hours of July 10th, a large thunderstorm complex tracked south across much of eastern Nebraska and western Iowa. The event began with a few discrete thunderstorms across central Nebraska that quickly congealed into a mesoscale convective system (MCS) pushing into the region. The environment was primed with 2,000'3,000 J/kg of MLCAPE and modest bulk shear, providing ample fuel for storm development.

While no severe reports were noted in northeast Nebraska, the MCS produced stronger impacts farther south overnight. A personal weather station measured a 61 mph wind gust about 3 miles east-southeast of Pacific Junction, Iowa, and a trained spotter reported 4-inch tree limbs down in Malvern, Iowa. In the system's wake, a mesoscale pressure feature known as a wake low developed over southeast Nebraska, where the KLNK ASOS recorded a 63 mph gust.

The storms gradually weakened through the early morning as they moved deeper into Kansas and farther east into Iowa.

View location on OpenStreetMap → (41.0000, -95.7400)

Source: NOAA Storm Events Database, event_id 1278841. Narrative written by the NWS forecast office that issued the report.