AAA Mattress & Furniture Warehouse

The Fire

A massive fire engulfed the AAA Mattress & Furniture Warehouse during a severe thunderstorm the evening of April 21, 2026. The structure was fully engulfed in approximately two minutes. Mishawaka Fire Department Battalion Chief Josh Courtney and Assistant Chief David Pierce declared the building unsalvageable. The smoke plume triggered a campus-wide alert at the University of Notre Dame.

No injuries were reported — the last employee had left approximately three minutes before the fire started. No dollar-loss figure has been publicly released.

Cause

A lightning strike during the thunderstorm, captured on security video from the nearby Big C Lumber property, is the operative cause. WNDU First Alert Weather confirmed two radar-indicated lightning strikes in the immediate vicinity at the time of ignition. Officials describe the investigation as formally ongoing but have strongly indicated lightning as the cause.

A significant secondary hazard: Battalion Chief Josh Courtney confirmed "quite a few thousand" lithium-ion batteries were stored inside — many held for contractor work on NIPSCO (utility) gas-meter technology. These were the source of the popping/exploding sounds residents reported during active fire operations.

Ownership & Operations

• Tenant/occupant: AAA Mattress & Furniture Warehouse
• Building owner: The Source Company, a floor-covering distributor

No corporate parent for either entity was identified. The building was used for both furniture-warehouse operations and as storage for the NIPSCO-contractor lithium-ion inventory.

Labor Connection

None. This fire is weather-caused, not labor-related. Documented here because it appeared in online roundups circulating after the April 7 Ontario Kimberly-Clark arson, where the combination of a large warehouse fire and lithium-battery explosions drew viral attention. The lightning strike on video firmly excludes intentional-ignition theories.

Social Media Reaction

Some viral-video traction for the lightning-strike footage and the lithium-battery explosion sounds. No meaningful arson or labor-conspiracy chatter surfaced in searches — local media framed the event entirely as weather-caused, and that framing held.