Enter any address in Fond du Lac County, Wisconsin to see its FEMA flood zone
Flash flooding from severe thunderstorms is a primary flood concern in Fond du Lac County. Recent events include flash flooding reported on June 22, 2024, due to severe thunderstorms, and river flooding that extended into July 2024 following heavy rainfall on already high river levels. Additionally, basement flooding occurred on March 5, 2022, due to heavy rainfall on frozen ground.
Homeowners in Zone A and Zone X_SHADED should pay particular attention to flood risk. Zone A has experienced the highest number of NFIP claims, with an average payout of $14,612 and an average water depth of 4.8 feet. Zone X_SHADED, while having fewer claims, has seen significantly higher average payouts ($30,974) and deeper water depths (9.7 feet), indicating potentially more severe inundation when flooding occurs in these areas.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
19 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Fond du Lac County, Wisconsin has recorded 27 flood-related events since 1996 according to NOAA's Storm Events Database, including 12 flash floods and 15 river or area floods. The county has received 12 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1974–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, Straight-line Winds, Flooding, And Landslides | Flood | Aug 17, 2018 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jun 5, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Storms And Flooding | Severe Storm | May 7, 2004 |
| Severe Storms, Flooding And Tornadoes | Flood | Jul 17, 1996 |
| Severe Storms, Tornadoes & Flooding | Severe Storm | Jun 7, 1993 |
| Severe Storms & Flooding | Flood | Sep 10, 1986 |
| Drought | Drought | Jun 17, 1976 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Jul 16, 2025 | 1.00K |
| Flash Flood | Jun 22, 2024 | 30.00K |
| Flood | Jun 22, 2024 | 50.00K |
| Flood | Mar 5, 2022 | 1.00K |
| Flash Flood | Jun 10, 2020 | 20.00K |
| Flood | Mar 14, 2019 | 100.00K |
| Flood | Mar 14, 2019 | 3.00K |
| Flood | Oct 1, 2019 | 3.00K |
| Flash Flood | Oct 1, 2019 | 10.00K |
| Flood | Aug 28, 2018 | 1.00K |
Flood — Jul 16, 2025
Two lines of severe thunderstorms tracked across southern Wisconsin from early afternoon through the early evening hours. Numerous supercell thunderstorms developed, producing a number of wall and funnel clouds as well as a few tornadoes. A secondary line of storms came through which caused sporadic wind damage. The main damage was in Iowa county from the strongest tornado which occurred nea...
Flash Flood — Jun 22, 2024
Severe thunderstorms developed across western Wisconsin and moved eastward across southern Wisconsin through the afternoon and evening hours on June 22nd due to passing low pressure and its approaching cold front. There were supercell thunderstorms along with bowing segments along this line which lead to multiple areas of damage. Two strong tornadoes occurred, which were rated EF-2 near Argyl...
Flood — Jun 22, 2024
Already high river levels, and additional heavy rainfall the evening of June 22nd, led to more river flooding late in June into July over portions of southern WI.
Flood — Mar 5, 2022
A cluster/line of thunderstorms moved across southern Wisconsin the evening of March 5th. Within this line of storms, some briefly intense downburst winds occurred across portions of south central to east central Wisconsin. A brief tornado also occurred in southeast Dane county. Quite a bit of structural damage was noted to a number of farming sheds and buildings in areas of Dane, Rock and F...
Flash Flood — Jun 10, 2020
Low pressure and a slow moving cold front brought isolated flash flooding and severe thunderstorms to southeast and east central WI.
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 Fond du Lac County, Wisconsin:
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 Fond du Lac County, Wisconsin 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.