Enter any address in Williams County, North Dakota to see its FEMA flood zone
7 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Williams County, North Dakota has recorded 12 flood-related events since 1996 according to NOAA's Storm Events Database, including 4 flash floods and 8 river or area floods. The county has received 19 federal disaster declarations, 8 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1969–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Wildfires And Straight-line Winds | Fire | Oct 5, 2024 |
| Severe Winter Storm And Flooding | Severe Storm | Apr 22, 2022 |
| Severe Storm, Straight-line Winds, And Flooding | Severe Storm | Jun 7, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm | Severe Storm | Apr 29, 2011 |
| Flooding | Flood | Feb 14, 2011 |
| Severe Storms And Flooding | Severe Storm | Mar 13, 2009 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Snow | Snowstorm | Jan 23, 2004 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 10, 2021 | 800.00K |
| Flash Flood | Jun 25, 2015 | 500.00K |
| Flood | Jun 28, 2014 | 25.00K |
| Flood | Jun 1, 2014 | 100.00K |
| Flood | May 11, 2011 | 250.00K |
| Flood | Jun 1, 2011 | 0.00K |
| Flood | Jul 1, 2011 | 0.00K |
| Flood | Aug 1, 2011 | 0.00K |
| Flash Flood | May 29, 2010 | 20.00K |
| Flash Flood | May 29, 2010 | 45.00K |
Flash Flood — Jun 10, 2021
A strong short-wave trough moved into the Northern Plains as a slow moving warm front lifted through North Dakota. Very strong instability developed by afternoon, along with increased deep layer shear. The initial storms occurred over west-central and northwest North Dakota. The main concern with these storms was large hail and tornadoes. Multiple tornadoes occurred over western McKenzie County...
Flash Flood — Jun 25, 2015
A variety of weak short waves moving through the region resulted in multiple thunderstorms developing. Initial storms in the mid-afternoon produced multiple funnel clouds, with large hail developing by late afternoon. The largest hail was quarter size, and reported in Ward and Dunn counties. Flooding started to become a concern in the evening as the slow moving storms became prolific rain produ...
Flood — Jun 28, 2014
Very heavy rain continued over several days at the end of June. Three to five inches of rain fell from Minot through Sherwood, and from Crosby through Lignite to Stanley. The highest rain amount was seven inches from Renville County. Another high amount was 4.50 inches from Ward County. Damage was extensive. The state of North Dakota requested and was granted a Federal Disaster Declaration as a...
Flood — Jun 1, 2014
Slow moving non-severe thunderstorms moved into western North Dakota late on May 31 and continued on June first. Thunderstorms were training and slow moving and resulted in flooding in northwest North Dakota, especially Divide and Williams counties, on June first.
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.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Williams 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 Williams 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.