Grand Rapids, MI – A powerful line of storms is expected to sweep through western and central Michigan on Wednesday, bringing a heightened threat of severe weather beginning early in the afternoon.
According to the US National Weather Service in Grand Rapids, the most severe impacts are anticipated between 2 p.m. and 11 p.m. Wednesday, June 18. Forecast models now show the storm system arriving earlier than originally predicted, with the greatest risk focused on the southern half of Michigan’s Lower Peninsula. Areas such as Grand Rapids, Lansing, Kalamazoo, and Ann Arbor fall under an Enhanced to Moderate risk level.
Damaging winds are likely throughout the region, with gusts strong enough to knock down trees and power lines. The threat of large hail has been upgraded to possible, and tornadoes are also being classified as possible—particularly in areas marked Level 3 or Level 4 on the updated storm risk map.
Morning storms may develop, but meteorologists emphasize that the most severe activity is expected in the late afternoon and evening. Residents are urged to stay weather-aware and have multiple ways to receive alerts, especially during the overnight hours.
The National Weather Service advises residents to finalize storm preparedness plans early Wednesday. Those in mobile homes or vulnerable housing should arrange for safer shelter options. Power outages and flash flooding may also occur in localized areas.
Stay tuned to NOAA weather radio, trusted local news sources, and official NWS social media channels for real-time updates as the system develops throughout the day.
