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Flood — Harrison, IN

Mar 25, 2023

During the evening and nighttime hours March 24th into March 25th, a mid-level trough moving from the central Plains into the Mississippi Valley amplified and became negatively tilted as it moved into the lower Ohio Valley. Low-level reflection of mid-level amplification manifested as a 50 knot low-level jet helped higher moisture air surge northward into southern Indiana during the late evening hours on March 24th. While a lack of instability north of a surface warm front limited the threat of

Source: NOAA National Weather Service Storm Events Database (event 1088129). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Harrison, IN

This event is one of many recorded floods in Harrison County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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On March 3rd, 2023, a historically strong low pressure system moved across the lower Ohio Valley, bringing heavy rainfall, severe weather, and most notably, very strong gradient winds as it moved across the region.

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