Enter any address in Lenawee County, Michigan to see its FEMA flood zone
River overflow and heavy rainfall events characterize flooding in Lenawee County. Recent events include flooding on March 10, 2009, when heavy rain caused moderate to major flooding along the River Raisin, impacting roads and homes, and a flash flood event on May 21, 2010, caused by heavy showers and thunderstorms.
National Flood Insurance Program (NFIP) data shows that properties in Zone A have experienced the most claims, with an average payout of $7,020 and an average water depth of 1.6 feet. While Zone X_SHADED properties have had fewer claims, their average payout was significantly higher at $14,873, despite an average water depth of 0.0 feet. Homeowners in Zone A, as well as those in areas prone to river flooding, should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
6 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Lenawee County, Michigan has recorded 34 flood-related events since 1996 according to NOAA's Storm Events Database, including 10 flash floods and 24 river or area floods. The county has received 6 federal disaster declarations. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Mi - Severe Weather 1/2 /99 | Snowstorm | Jan 2, 1999 |
| Blizzards & Snowstorms | Snowstorm | Jan 27, 1978 |
| Tornadoes & Severe Storms | Tornado | Apr 14, 1965 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Jan 11, 2020 | 0.00K |
| Flood | Jun 27, 2015 | 100.00K |
| Flash Flood | May 21, 2010 | 0.00K |
| Flood | Mar 10, 2009 | 200.00K |
| Flash Flood | Jun 21, 2008 | 100.00K |
| Flash Flood | Jul 2, 2008 | 100.00K |
| Flash Flood | Jun 21, 2006 | 150K |
| Flood | Jan 14, 2005 | — |
| Flood | May 23, 2004 | — |
| Flash Flood | May 21, 2004 | — |
Flood — Jan 11, 2020
A winter storm tracking through southeast Michigan brought heavy rain and freezing rain, with about a quarter of an inch ice from US-10 south to about M-57. Many accidents and spin outs occurred across the Tri-Cities region and Flint vicinity due to the icy roads. In addition, strong northeast winds lead to high water levels and large waves causing significant lakeshore flooding and erosion alo...
Flood — Jun 27, 2015
Two to five inches of rain fell, mainly during the daytime hours of Saturday, June 27. |Here are some storm total rainfall reports received:|Blissfield 3.46 inches.|Tecumseh 3.56 inches.|Adrian 3.90 inches.|Morenci 4.81 inches.
Flash Flood — May 21, 2010
A batch of heavy showers and embedded thunderstorms caused flooding over Lenawee county with isolated wind damage over Livingston county.
Flood — Mar 10, 2009
Heavy rain fell between the 7th and 11th bringing 3 or more inches of rainfall to a good portion of southeast lower Michigan with the River Raisin basin getting hit the worst with 4 to 5 inches in that period. This caused flooding along several rivers with moderate flooding on the Huron at Hamburg and the reach from Blissfield down to Monroe getting moderate to major flooding. Dundee recorded i...
Flash Flood — Jun 21, 2008
A surface trough moving through southeast Michigan during the afternoon hours triggered scattered severe thunderstorms along and near an Adrian to Port Huron line.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Lenawee County, Michigan:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Lenawee County, Michigan that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.