On January 9, 2026, in Palos Heights, Illinois, United States, @MGLStormChasers shared a video of sudden flash flooding near 122nd Street and 71st Court. In the video, real-time flooding overwhelms residential streets under streetlights as a vehicle carefully navigates deep, fast-moving water. Several inches of pooling water submerge intersections and create hidden hazards, underscoring the danger to motorists. The event occurred during a National Weather Service advisory for Cook County, where 1–2 inches of rain fell in under an hour—unusual for mid-winter—exacerbated by recent warm temperatures accelerating snowmelt. An accompanying photo further shows widespread road inundation near a municipal parking lot.