Flash Flood in Marion County, Indiana
Flash Flood April 27, 2026 – April 28, 2026 · Marion County, Indiana
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Underpass flooded due to heavy rainfall from thunderstorms.
The wider storm
On April 27, 2026, an upper-level shortwave trough and an associated deepening surface low-pressure system tracked across the Midwest. South of the low's path, a sufficiently unstable warm sector surged into central Indiana, characterized by rich boundary-layer moisture and strong low and deep layer wind shear. This setup supported multiple rounds of severe convection resulting in numerous damaging wind gusts or large hail reports. Three tornadoes also occurred between Jackson and Morgan Counties, along with flash flooding in Knox and Marion Counties.
Began near Ind Shank Arpt (39.8277, -86.2661).
Other tornadoes from the same storm system
2 more tornadoes the National Weather Service filed under this storm episode.
Source: NOAA Storm Events Database, event 1334969. Narratives are written by the National Weather Service forecast office that issued the report.
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