
The U.S. Coast Guard recovered four undetonated military flares from Lake Michigan after one surfaced at a popular Chicago beach, igniting public alarm over training exercises near recreational zones.
At a Glance
- Four military flares were lost during a joint training exercise in Lake Michigan
- One flare was found 90 miles away at Montrose Beach in Chicago
- Flares burn at 2,900°F and remain “armed” if undetonated
- Public warned to avoid touching suspicious objects and call 911
- All four flares were recovered as of Wednesday night
Lethal Drift: Flares Go Missing
During a joint U.S. Air Force and Coast Guard exercise near Milwaukee, four military-grade phosphorus flares failed to activate and disappeared beneath the waters of Lake Michigan. These devices, designed for distress signaling and combat scenarios, are capable of igniting at nearly 2,900 degrees Fahrenheit and were considered armed despite failing to fire.
The alert escalated rapidly when a Chicago lifeguard discovered one of the silver cylinders on Montrose Beach, 90 miles from the drill site. Coast Guard Lt. Joe Neff confirmed the danger: “Now we know we got three out there somewhere that could possibly still be in that armed position.”
Watch a report: Coast Guard warns of armed flares in Lake Michigan.
Public Danger Along the Shoreline
The Coast Guard swiftly issued safety instructions, warning that the pyrotechnics—though designed for military use—pose a serious civilian threat. Each flare emits searing red smoke and fire when activated and could be mistaken for harmless debris by beachgoers.
“These pyrotechnics are still considered armed when they do not activate,” the Coast Guard stressed. Concern grew rapidly among parents and residents near the lakefront, fearful that children or pets might accidentally stumble upon one of the deadly devices.
Officials advised the public not to touch, move, or attempt to inspect any unknown objects along the lakefront, but to immediately notify 911 and maintain a safe distance until authorities could respond.
Rapid Recovery and Lingering Questions
By Wednesday night, the Coast Guard confirmed all four flares had been located. However, they did not disclose the exact recovery locations or methods, citing ongoing investigations into how the devices drifted so far from the original site. The incident has sparked criticism over the proximity of military drills to public beaches and recreational areas.
Though swift action mitigated immediate danger, the episode raises broader concerns about protocol lapses in joint-force exercises and the potential civilian impact. Residents and safety advocates are now calling for stricter oversight and more robust emergency communication systems whenever hazardous military equipment is used near populated zones.
The Lake Michigan scare ends without injury, but it leaves behind a pressing question: how prepared are we for the next time military materials end up where they shouldn’t?