Michigan Has Declared 11 Federal Disasters Since 2016. Here’s What Detroit Residents Actually Need to Prepare For

Last Updated: March 2025 | Based on FEMA/NOAA/USGS data

Michigan has received 11 federal disaster declarations since 2016, and only one of them was a winter storm. That declaration came in July 2025 for a severe winter storm event, but the broader picture of what FEMA has actually mobilized for in this state tells a more complicated story: three flood events, two dam and levee failures, two biological emergencies, and two severe storm complexes. Detroit sits at the center of that risk profile. Lake-effect snow gets the headlines, but it’s the combined threat of winter cold, flooding infrastructure stress, and power grid vulnerability that leaves residents exposed. Our Winter Storm Preparedness guide covers the cold-weather piece of that risk profile.

This guide is built around that real record, not a generic checklist repackaged for every Great Lakes city.

Winter Storms in Michigan: What the 2025 Declaration Actually Means for Detroit

FEMA’s July 2025 declaration for a “Severe Winter Storm” confirmed what Detroit-area residents already knew: when a major ice or snow event hits southeastern Michigan, the damage goes well beyond inconvenience. Ice accumulation brings down power lines, freezes road salt into uselessness on I-75 and I-96, and overwhelms DTE Energy’s grid, sometimes for days. The National Weather Service Detroit/Pontiac office (weather.gov/dtx) issues winter storm warnings specific to Wayne, Oakland, and Macomb counties. Sign up for those alerts directly; don’t rely on a push notification from a weather app to catch a midnight upgrade from Watch to Warning.

The practical prep steps that actually match this threat:

• ☐ Insulate exposed pipes now, before October. Pipes in garages, crawl spaces, and exterior walls are the first to freeze when temps drop below 20°F, common in Detroit from December through February.
• ☐ Have your furnace serviced before the first cold snap. HVAC technicians book solid once temperatures fall; schedule in September or early October.
• ☐ Clear your gutters in late November. Ice dams form when heat escapes through the roof, melts snow, and refreezes at the eave. A blocked gutter accelerates that cycle and can push water into your walls.
• ☐ Test smoke and carbon monoxide detectors. Every winter, CO poisoning spikes in Michigan when residents fire up generators indoors or run gas stoves for heat. CO is odorless. A working detector is the only warning you get.
• ☐ Keep your gas tank above half from November through March. If DTE shuts down a substation and you need to leave, you will sit in traffic on the Lodge Freeway, sometimes for hours.
• ☐ Seal drafts around windows and doors. Weatherstripping pays back its cost in the first cold week. In a prolonged outage, a well-sealed room holds heat measurably longer than a leaky one.

The Flooding Problem Detroit Doesn’t Talk About Enough

Three of Michigan’s 11 federal disasters since 2016 were flood events, including a June 2026 declaration for severe storms, tornadoes, and flooding, and a February 2024 declaration for the same combination. Detroit’s combined sewer system, portions of which date to the early 1900s, remains one of the city’s most persistent infrastructure vulnerabilities. When heavy rain follows a snowmelt event, basement flooding in older neighborhoods near the Rouge River and Lower Huron corridors is not a freak occurrence, it’s a recurring pattern that FEMA has formally recognized multiple times.

Winter preparedness intersects with flood risk in specific ways Detroit residents should understand:

• Rapid snowmelt is a flood trigger. A warm front moving through in late February or March can melt a foot of accumulated snow in 48 hours. Combined with frozen ground that can’t absorb runoff, that goes straight into storm and sanitary systems simultaneously.
• Know your basement backup risk. If your home has a floor drain, a sump pump, or a utility sink in the basement, check whether you have a backflow preventer installed. The City of Detroit’s Water and Sewerage Department has offered cost-share programs for this, call DWSD or check their website before the spring thaw.
• Document your basement contents now. Photographs and video of anything stored below grade, appliances, HVAC equipment, personal property, create the insurance record you’ll need if a sewer backup happens. Do this today, not after the water is already in.

The Dam Failure Record: A Winter Prep Factor Most Residents Ignore

In May and June of 2020, Michigan received two separate federal disaster declarations for dam and levee failures, both tied to severe storms and flooding. The Edenville and Sanford dam failures on the Tittabawassee River became national news. While those structures are north of Detroit, Wayne County sits downstream of a network of retention and flood control infrastructure that is subject to the same stress conditions: rapid snowmelt, saturated soil, and sustained rain. FEMA’s dam safety resources include guidance on what downstream residents should know, it’s worth 20 minutes of your time to look up whether any water control structures sit upstream of your neighborhood.

The preparedness action here is simple: know your evacuation route before you need it. Wayne County Emergency Management (waynecounty.com) maintains current emergency plans. Save that URL. Know the two roads out of your neighborhood that don’t cross the same low-lying areas that flood first.

Your 72-Hour Kit: Built for What Michigan Actually Throws at You

A Detroit-specific kit isn’t just about water and granola bars. It accounts for extended cold exposure, potential power loss during a DTE grid event, and the possibility that roads stay impassable for 36–48 hours after a major ice storm.

• Water, one gallon per person per day, minimum three-day supply; in winter, store it somewhere that won’t freeze
• Non-perishable food that doesn’t require cooking (power and gas can both go out)
• Battery-powered or hand-crank NOAA Weather Radio, the NWS Detroit/Pontiac office broadcasts continuous updates at 162.400 MHz
• Flashlight and extra batteries; headlamps free your hands for pipe checks or generator work
• Sleeping bags or wool blankets rated to at least 20°F for every household member
• First aid kit including any prescription medications (30-day buffer if your insurance allows it)
• Wrench or pliers to shut off the water main, know where yours is before pipes freeze
• Portable phone charger, fully topped off at the start of each week in winter months
• Cash in small bills. ATMs and card readers go down with the power grid

During a Storm: The Decisions That Actually Cost People

• Don’t drive until Wayne County Road Commission clears primary routes. Detroit’s street grid has a lot of collector roads that sit low. What looks passable at 6 a.m. can have six inches of standing water under a fresh dusting of snow.
• Never run a generator, grill, camp stove, or charcoal burner inside, including the garage. Carbon monoxide travels through door gaps and shared walls. This is the cause of death in Michigan winter emergencies more often than the cold itself.
• Close off unused rooms. One or two rooms heated by body warmth and retained heat from the walls will stay survivable far longer than trying to heat a whole house with a single space heater.
• Check on neighbors who are elderly or live alone. Detroit has a large population of older homeowners who may not have transportation or mobile alerts. A five-minute knock costs nothing.
• Monitor the NWS Detroit/Pontiac office directly at weather.gov/dtx. Local forecast discussions, the text behind the forecast, are written by meteorologists and often contain nuance that the headline forecast drops.

After the Storm Passes

• Check furnace and dryer exhaust vents before restarting heating systems. Snow drifts pack these vents solid. A blocked flue is a CO source the moment the burner fires.
• Inspect your roof and gutters for ice dam formation before interior water damage appears on ceilings.
• Report outages to DTE Energy directly at 800-477-4747, not just through an app. Phone reports log faster into dispatch systems during mass outage events.
• Take shoveling in shifts. Wet, heavy Great Lakes snow is dense. Cardiac events during post-storm cleanup are a documented pattern in southeast Michigan emergency rooms every February.

Frequently Asked Questions

Michigan had two dam failure disasters in 2020, should Detroit residents worry about that risk too?

The 2020 Edenville and Sanford failures were upstream events, but they underscored that Michigan’s aging water control infrastructure is a real liability during heavy rain and snowmelt combinations. Wayne County residents near the Rouge, Ecorse, or Huron river corridors should review their flood zone status on FEMA’s Flood Map Service Center (msc.fema.gov) and confirm whether their homeowner’s or renter’s policy covers flood damage, most standard policies do not.

The 2025 FEMA winter storm declaration was issued in July, what does that mean for the timeline of recovery?

Federal disaster declarations often follow the event by weeks or months as damage assessments are completed and state requests are processed. A July 2025 declaration for a winter storm means the event likely occurred in late winter or early spring 2025. The delay between storm and declaration is normal, it does not affect whether individual assistance or public assistance funds eventually become available. Track open Michigan disaster declarations at fema.gov.

Detroit has a combined sewer system, what does that actually mean for winter preparedness?

A combined sewer carries both stormwater and sanitary sewage in the same pipe. During high-volume events, rapid snowmelt, heavy rain on frozen ground, the system can exceed capacity and back up into basements through floor drains and toilets. This is not a hypothetical: FEMA’s 2024 and 2026 Michigan flood declarations both followed events that stressed exactly this kind of urban drainage infrastructure. A sump pump with a battery backup and a backflow preventer on your basement drain are the two highest-leverage physical investments a Detroit homeowner can make for this specific risk.