Funnel Cloud — Madison, Iowa

2024-06-25 · near Winterset Arpt, Madison, Iowa

Event narrative

Funnel cloud seen looking north from highway 92 west of Winterset.

Wider weather episode

Scattered convection occurred throughout the day across the area as a weak cold front dropped slowly south across the area. By afternoon the front had largely stalled near the I-80 corridor and more vigorous convection developed along the front, fed by high instability exceeding 3000 J/kg and steep mid level lapse rates of 7 to 8 C/km. Storms first began near Newton and then back built towards the west along the boundary through the evening. Storms produced large hail and stretching resulted in a huge number of funnel clouds, including pictures with a least visible at the same time. Later in the evening a wave across Nebraska moved into Iowa, sweeping east along the instability gradient that the earlier evening convection developed on. A few damaging wind gusts occurred with this line of storms, however it remained sub severe most of the night.

View location on OpenStreetMap → (41.3600, -94.0500)

Source: NOAA Storm Events Database, event_id 1190247. Narrative written by the NWS forecast office that issued the report.