What to Do Immediately After Storm Flooding

Before you go back inside

Follow instructions from local officials about when it is safe to return. FEMA guidance is specific that you should confirm electricity and gas are shut off to avoid fire or injury, and that a qualified electrician should check the house before power is restored. Avoid entering any building that still has standing water inside or visible structural damage until it has been inspected.

Protect yourself while you work

Wear protective gear: gloves, eye protection, waterproof boots, long sleeves, and respiratory protection. FEMA recommends an N95 mask at minimum when handling debris or mold-affected material. Never touch, cut, or move debris that is on or near a downed power line, even if the power appears to be out; FEMA warns that power can be restored without warning.

Follow the five-step process

FEMA describes flood-damaged item recovery in five steps: air out, move out, tear out, clean out, and dry out. Open windows and doors to ventilate the space, remove damaged belongings, remove and discard materials that absorbed floodwater and can't be cleaned, clean remaining surfaces, and dry everything as fast as possible.

Race the clock on mold

FEMA guidance states mold can begin growing within 24 to 48 hours in damp conditions, which matches EPA's drying-window guidance for any water event. Building owners are encouraged to start cleanup and documentation immediately after floodwater recedes, specifically to get ahead of mold growth rather than behind it.

Document everything before you throw anything away

Photograph and video all damage, inside and outside the home, including the insides of closets and cabinets, before discarding items. Keep every receipt tied to cleanup, since these support both an insurance claim and any disaster assistance application. This documentation step matters even more with flood damage than with a simple pipe break, because flood coverage usually runs through a separate NFIP policy with its own claims process.

Know whether this is a covered loss

Standard Michigan homeowners insurance generally does not cover flood damage from rising water; that coverage requires a separate NFIP flood insurance policy, according to Michigan DIFS. If you don't carry flood insurance and this was rising water rather than, say, a sewer backup, the cleanup cost may not be reimbursed through your homeowners policy. Contact your insurer immediately regardless, since the cause of loss determination affects what's covered.

Michigan's storm pattern

Southeast Michigan's severe weather season runs roughly April through August, with tornado activity peaking in June and the most violent tornadoes historically occurring in April and May, according to the National Weather Service Detroit/Pontiac office. Storm flooding is often tied to these same severe weather events, including heavy rain accompanying thunderstorm systems. Since 1950, the NWS Detroit/Pontiac office records 331 tornadoes in Southeast Lower Michigan, a reminder that the severe weather producing flood conditions in this region is a recurring seasonal pattern, not a rare event.

What to expect from a professional assessment after storm flooding

If the flooding reached a finished living space, a professional assessment typically checks moisture levels behind walls and under flooring with a moisture meter, not just visible surfaces, since the same 24-to-48-hour mold window applies to hidden moisture as much as to what you can see. Ask any contractor performing this assessment to show you the moisture readings, not just a verbal "it's dry," so you have documentation of the actual condition of the structure.

Don't skip the disaster-assistance angle

If the flooding was widespread and tied to a declared disaster, additional resources beyond your insurance policy may be available. Check with local Michigan emergency management officials and FEMA directly for whether a disaster declaration applies to your area, since eligibility and available assistance change based on that declaration.