What is the location of the flooding?
On April 15, 2026, intense rainfall on top of saturated snowy grounds has caused extensive flooding across northern and southwestern areas of Michigan. With an earlier onset of spring and warmer weather, previous snowfall melted at quick rates. On top of the rainy conditions, the excess water has caused small dam failures, an overflow of rivers and streams, as well as road closures (1).
Counties across Michigan and neighboring states have received flood watch warnings including eastern Wisconsin, northern Indiana, northwestern Ohio, and northeastern Illinois (2).
Which cities or areas are affected by the flooding?
Most communities experiencing significant flooding are located near riverbanks or streams that have become overflown by flood water, including (3):
- River Oak, near Au Sable River
- Sherman, near Manistee River
- Evart, near Muskegon River
- Newaygo and Bridgeton, near Muskegon River
Excess flooding usually collects and drains into larger bodies of water, creating massive overflow that has caused the damage and breakage of a few small, unregulated dams.
What is the current containment status of the flooding?
On April 15, 2026, the flood is ongoing as rainfall continues to feed into the overflow of water. Michigan has seen up to 2.5 inches of rainfall since Tuesday and is expected to receive an additional 3 inches over the next two days. County officials are preparing structures for impact, stacking sandbags along dams to reinforce the walls containing the excess water. Governor Gretchen Whitmer issued a statewide energy emergency, suspending some regulations to allow for faster response time (4).
Are there any evacuation orders or alerts in place?
County authorities across the state have issued individual warnings to various communities and begun evacuations for flood-prone areas. Almost the entire state has entered a flood watch warning or received evacuation notices. In Cheboygan, Michigan state troopers visited residents door-to-door to warn people and ensure everyone is aware of evacuation orders in place. Cheboygan County is located near Little Black River, which has caused a flooding for residents living in lower regions of the community (5).
How can I protect myself from mold after flooding?
It’s important to take steps to prevent mold after a flood.
- Before entering a flooded area, make sure it is safe and free from electrical hazards or structural damage.
- Use protective gear: wear gloves, goggles, and a KN95/FFP2 mask to minimize exposure to mold spores.
- If there is still standing water, remove it as quickly as possible. Use pumps, wet-dry vacuums, or buckets to extract the water.
- Open windows and doors to facilitate air circulation and use fans, dehumidifiers, and HVAC systems to help dry the space. This step is crucial within the first 24-48 hours after flooding to prevent mold growth.
- Remove and discard any items that have been severely damaged by floodwater and cannot be thoroughly cleaned and dried. This includes carpets, upholstered furniture, mattresses, and any other porous materials.
- Thoroughly clean all hard surfaces with a detergent or cleaner suitable for mold remediation. Use a solution of 1.5 cups of bleach mixed with one gallon of water to disinfect nonporous surfaces. Never mix bleach with ammonia or other cleaning products, as the fumes are toxic.
- Maintain an indoor relative humidity (RH) of 35-50%. High humidity promotes mold growth, so consider using dehumidifiers in damp areas.
- Run a high-performance air purifier for mold, both during and after the mold removal work.
- If the flooding and mold damage are extensive, consider contacting professionals specializing in mold remediation to ensure proper cleanup and restoration.
Remember, mold can pose health risks, so it's important to take these steps promptly and thoroughly. If you experience persistent mold-related health issues or have concerns about extensive mold growth, consult with a medical professional or a mold remediation specialist.
