EFU Tornado — Cass, Iowa
2024-06-28 · near Wiota, Cass, Iowa
0.4 mi
Path length
30 yds
Path width
Event narrative
No damage indicators were impacted, hence the EFU rating as the tornado remained in rural cropland.
Wider weather episode
A cold front moved across the area on the evening of June 28th. Convection developed quickly along the front as the cap eroded, initially discrete but quickly growing upscale. Robust CAPE exceeding 3000 J/kg was in place with good directional shear to support rotating updrafts. This resulted in a handful of weak tornadoes in Cass county at the onset of storm development. After storms grew upscale they remained sub-severe.
View location on OpenStreetMap → (41.3877, -94.9168)
Source: NOAA Storm Events Database, event_id 1190990. Narrative written by the NWS forecast office that issued the report.