Flood — Lake, Indiana

2025-08-19 · near Hammond, Lake, Indiana

Event narrative

The Little Calumet River at Munster rose to minor flood stage for about six hours on the night of the 18th, cresting at 12.35 feet.

Wider weather episode

A series of strong thunderstorms brought torrential rain and flooding to portions of far northwestern Indiana during the evening and night of the 18th. Automated rain gauges and Cocorahs reports from northern Lake and Porter Counties generally ranged between two and four inches with isolated reports closer to five inches. Initial estimates have around 1,000 structures flooded in Lake County amounting to near $4 million in damages.

View location on OpenStreetMap → (41.5780, -87.5237)

Source: NOAA Storm Events Database, event_id 1292414. Narrative written by the NWS forecast office that issued the report.