Enter any address in Dunn County, North Dakota to see its FEMA flood zone
6 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Dunn County, North Dakota has recorded 13 flood-related events since 1996 according to NOAA's Storm Events Database, including 4 flash floods and 9 river or area floods. The county has received 18 federal disaster declarations, 7 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1969–2023)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Flooding | Flood | Apr 10, 2023 |
| Severe Winter Storm And Flooding | Severe Storm | Apr 22, 2022 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Severe Storm | May 17, 2013 |
| Severe Winter Storm | Severe Storm | Apr 29, 2011 |
| Severe Winter Storm | Severe Storm | Jan 20, 2010 |
| Severe Storms And Flooding | Severe Storm | Mar 13, 2009 |
| Severe Winter Storm And Record And/or Near Record Snow | Snowstorm | Oct 4, 2005 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Apr 16, 2023 | 540.00K |
| Flash Flood | Jun 28, 2018 | 10.00K |
| Flood | Aug 15, 2014 | 1.70M |
| Flash Flood | Jul 22, 2011 | 10.00K |
| Flood | May 11, 2011 | 50.00K |
| Flood | Jun 1, 2011 | 0.00K |
| Flood | Jul 1, 2011 | 0.00K |
| Flood | Aug 1, 2011 | 0.00K |
| Flood | Mar 6, 2009 | 70.00K |
| Flash Flood | Jun 29, 2005 | — |
Flood — Apr 16, 2023
The spring snow melt of 2023 saw many areas of flooding over North Dakota due to a record deep snow pack and relatively fast melt. Multiple counties experienced infrastructure damage due to the flooding. In addition, during the morning hours of April 16, a flood death (direct) occurred as a 54 year old female was driving a 2004 Ford Escape along ND Highway 66 near the intersection of 47th Avenu...
Flash Flood — Jun 28, 2018
An extremely unstable atmosphere combined with very strong deep layer wind shear set the stage for intense thunderstorm development. Initially, thunderstorms were supercells, and formed along a warm front that lifted through North Dakota in the afternoon and evening hours. One of the supercell thunderstorms produced flash flooding in Dunn and Mercer counties, while another produced 3.50 inch di...
Flood — Aug 15, 2014
Several waves of heavy rain, with embedded non severe thunderstorms with torrential rain, moved through western and central North Dakota. There was overland, stream, river and flash flooding, mainly over the southern half of the western and central parts of the state. The hardest hit areas were between Williston and Dickinson, and between Bismarck and Jamestown. Up to six inches of rain fell fr...
Flash Flood — Jul 22, 2011
A severe thunderstorm outbreak materialized over west and south central North Dakota in the late afternoon and evening hours of July 22nd, lasting into the early morning hours of the 23rd. Tornado watch numbers 673, 674, and 675 were in effect for this event. A tornadic storm developed over south central North Dakota along a surface warm front. Much of the severe weather for this event originat...
Flood — May 11, 2011
This was part of historic flooding in North Dakota with statewide costs estimated around 1.5 billion dollars. Flooding was the result of significant winter snows and significant spring rains, not only in North Dakota but in Montana as well. Rocky Mountain snowpack was four to six times normal. Flooding was along the Missouri River from the Montana border to Garrison Dam. Dams were overwhelmed b...
Source: NOAA National Weather Service Storm Events Database.
FEMA assigns flood zone designations to areas in Dunn County, North Dakota:
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 Dunn County, North Dakota 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.