7 federal flood & hurricane disasters
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Dunn County, North Dakota. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
6 NOAA storm reports from Dunn County describe what happened, in the words of the forecasters who covered it. Read the North Dakota flood stories →
18 federal disaster declarations since 1969, 7 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Flooding | Apr 10, 2023 |
| Severe Winter Storm And Flooding | Apr 22, 2022 |
| Severe Storms And Flooding | May 17, 2013 |
| Severe Winter Storm | Apr 29, 2011 |
| Severe Winter Storm | Jan 20, 2010 |
| Severe Storms And Flooding | Mar 13, 2009 |
| Severe Winter Storm And Record And/or Near Record Snow | Oct 4, 2005 |
| Hurricane Katrina Evacuation | Aug 29, 2005 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
13 since 1996: 4 flash floods and 9 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flood | Apr 16, 2023 | $540,000 |
| Flash Flood | Jun 28, 2018 | $10,000 |
| Flood | Aug 15, 2014 | $1.7M |
| Flash Flood | Jul 22, 2011 | $10,000 |
| Flood | May 11, 2011 | $50,000 |
| Flood | Jun 1, 2011 | — |
| Flood | Jul 1, 2011 | — |
| Flood | Aug 1, 2011 | — |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
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 Avenue NE, to the northwe…
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 diameter hail over Wel…
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 from Kintyre to Napole…
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 originated over eastern Mont…
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Dunn County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.