Hail in Story County, Iowa
Hail May 19, 2025 · Story County, Iowa
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Delayed report, time estimated by radar.
The wider storm
A warm front lifted out of Missouri and into Iowa in the late afternoon, with convection continuing through the evening. Instability of around 1000 J/kg of MLCAPE and effective shear values of 30-40 kts were sufficient to produce hail up to golf ball sized as they moved north along the I-80 corridor. Later that evening storms grew upscale but diminished in strength. Several personal weather stations then reported gusts of 60-65+ mph on the dry side of stratiform, non thunderstorm, rain areas. This was likely due to evaporative processes along the edge of the precipitation areas.
Began near Nevada (42.0200, -93.4500).
Source: NOAA Storm Events Database, event 1253698. Narratives are written by the National Weather Service forecast office that issued the report.
Tornadoes near your address
See every tornado that passed near a place you know, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.