MICHIGAN — A boundary that has been shifting south throughout the last two days will be responsible for very isolated thunderstorm chances south of I-96 today. In this Level 0 zone, only about 20 percent of the area, and possibly less, will even see a storm. An additional 10 percent chance for storms exists along an inland boundary stretching between Lansing and the Atlanta and Hillman area, extending the low-end setup into northeast lower Michigan.
Southern Michigan Faces Only a 20 Percent Storm Chance
The main threat area today covers a corridor stretching from Muskegon and Grand Rapids through Lansing, Jackson, Flint and toward Detroit and St. Clair. Within this Level 0 zone, only around 20 percent of the area, or possibly less, is expected to actually see a storm develop.
Communities including Kalamazoo, Coldwater and Adrian also fall within this low-probability zone as the shifting boundary continues to influence storm chances across the southern Lower Peninsula.
Inland Boundary Adds a Secondary Low-End Chance to the Northeast
A separate 10 percent chance for storms exists along an inland boundary that could fire somewhere between Lansing and the Atlanta and Hillman area in northeast lower Michigan. Forecasters note this is not a likely solution, but it remains a scenario they have been watching closely over recent days.
This secondary chance stretches the overall threat area farther north than the primary Level 0 zone.
Severe Weather Probability Remains Under 1 Percent Statewide
Across all hazards, the probability of severe weather remains under 1 percent today, meaning any storms that do develop are expected to remain non-severe. The greatest likelihood for a storm to form will come at a random time between 3 and 9 p.m. Eastern time. Stay with NapervilleLocal.com for the latest weather updates and local forecast coverage.…