Enter any address in Hyde County, South Dakota to see its FEMA flood zone
Flash flooding from slow-moving thunderstorms is a primary flood concern in Hyde County. Over the last 30 years, NOAA Storm Events data shows 10 flash flood events and 12 flood events. For example, widespread thunderstorms brought heavy rain to central South Dakota on August 21, 2024, causing significant rainfall in the area. Earlier, on April 9, 2023, unusually cold spring conditions led to a deep snowpack that eventually melted, contributing to flooding.
Additionally, heavy rains combined with snowmelt and ice jams have caused flooding in the region. A March 25, 2019 event resulted in flooded rivers, creeks, fields, and roads, damaging infrastructure and some structures. Another flood event on April 1, 2019, caused by continued snowmelt and a mid-April blizzard, led to widespread flooding of roads, cropland, and affected homes and businesses.
While the National Flood Insurance Program has recorded only one claim in Hyde County with an unknown zone and no payout, residents in areas prone to river and creek overflow, as well as those in low-lying areas susceptible to heavy rainfall, should remain aware of flood risks.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
7 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Hyde County, South Dakota has recorded 22 flood-related events since 1996 according to NOAA's Storm Events Database, including 10 flash floods and 12 river or area floods. The county has received 28 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 (1969–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm, Snowstorm, And Flooding | Flood | Mar 13, 2019 |
| Flooding | Flood | Mar 11, 2011 |
| Flooding | Flood | Mar 10, 2010 |
| Severe Winter Storm | Severe Storm | Jan 20, 2010 |
| Hurricane Katrina Evacuation | Coastal Storm | Sep 6, 2005 |
| Severe Storm | Severe Storm | Jun 7, 2005 |
| Severe Flooding, Sever Winter Storms,heavy Rains High Winds | Flood | Feb 3, 1997 |
| Severe Winter Storms And Blizzard Conditions | Severe Storm | Jan 3, 1997 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 22, 2024 | 0.00K |
| Flood | Apr 9, 2023 | 0.00K |
| Flood | Mar 25, 2019 | 0.00K |
| Flood | May 1, 2019 | 0.00K |
| Flood | Jun 1, 2019 | 0.00K |
| Flood | Apr 1, 2019 | 177.80K |
| Flood | Jun 19, 2015 | 0.00K |
| Flash Flood | Jun 19, 2015 | 0.00K |
| Flash Flood | May 30, 2014 | 0.00K |
| Flood | Jun 20, 2011 | 0.00K |
Flash Flood — Aug 22, 2024
Widespread, slow moving thunderstorms brought hail, gusty wnds and heavy rain to portions of central South Dakota on the afternoon and evening of August 21st. Hail to the size of tennis balls was observed by a trained spotter 4 miles northwest of Murdo. A peak wind speed of 65 mph was observed at a weather station 13 miles north northwest of Sansarc while the ASOS in Pierre peaked at 59 mph. E...
Flood — Apr 9, 2023
The snowfall during the season in northeast and central South Dakota exceeded normal levels, with many locations ranking among the top 10 for the snowiest seasons. Additionally, the late spring conditions were unusually cold, resulting in a persistent and exceptionally deep snowpack until early April. The depth of the snowpack ranged from 15 to 30 plus inches, containing approximately 4 to 8 in...
Flood — Mar 25, 2019
Much above normal winter snowfall and melt water/ice jams along with heavy rains in the middle of March brought flooding across parts of central and northeast South Dakota for late March. Rivers and creeks flooded across much of the area along with many fields and roads. The flooding damaged many of the roads and culverts across the region. Some structures were also flooded. Lake levels also ro...
Flood — May 1, 2019
March and April snowmelt and heavy rain flooding along with above normal May precipitation resulted in hundreds of thousands of acres of crops damaged or delayed/unplanted across central and northeast South Dakota. The widespread flooding continued into June with millions of dollars of loss.
Flood — Jun 1, 2019
Spring snowmelt and heavy rain flooding from March, April, and May continued into June. This combined with above normal June rainfall resulted in hundreds of thousands of acres of crops damaged or unplanted across central and northeast South Dakota. For the entire state of South Dakota, nearly 4 million acres of crops were left unplanted as a result of the flooding. Total damaged or unplanted c...
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 Hyde County, South 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 Hyde County, South 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.