Disaster Data / States / South Dakota / Lake Traverse (Sisseton) Indian Reservation
Tribal nationLake Traverse (Sisseton) Indian Reservation, South Dakota
Lake Traverse (Sisseton) Indian Reservation recorded 10 federal disaster and emergency declarations since FY2000 (through FY2025): 8 major disasters, 2 emergencies, and 0 fire-management declarations. Its most common hazard is severe storm.
The federal disaster record for Lake Traverse (Sisseton) Indian Reservation runs between 2007 and 2025, covering 10 declarations in all. Its most recent major disaster declaration was Severe Storm And Flooding in 2025. The hazards behind these declarations were most often severe storm, flood, and biological.
Most common hazards
- Severe Storm 4
- Flood 3
- Biological 3
Previous occurrences, for your mitigation plan
Every local hazard mitigation plan must document previous occurrences of each hazard. Here is that record for Lake Traverse (Sisseton) Indian Reservation, sourced to OpenFEMA and refreshed weekly. Copy it straight into your plan.
| Hazard | Date | FEMA declaration | Type |
|---|---|---|---|
| Flood | Sep 11, 2025 | DR-4890-SD | DR |
| Flood | Jul 6, 2023 | DR-4718-SD | DR |
| Severe Storm | Jun 29, 2022 | DR-4656-SD | DR |
| Biological | Apr 5, 2020 | DR-4527-SD | DR |
| Biological | Mar 13, 2020 | EM-3475-SD | EM |
| Biological | Mar 13, 2020 | EM-3526-SD | EM |
| Flood | Jun 7, 2019 | DR-4440-SD | DR |
| Severe Storm | Feb 1, 2017 | DR-4298-SD | DR |
| Severe Storm | Mar 10, 2010 | DR-1887-SD | DR |
| Severe Storm | May 22, 2007 | DR-1702-SD | DR |
Every declaration on record
DR = Major disaster (Stafford Act) · EM = Emergency declaration · FM = Fire management assistance
Showing 10 declarations
| Date | Number | Type | Hazard | Title |
|---|---|---|---|---|
| Sep 11, 2025 | DR-4890-SD | DR | Flood | Severe Storm And Flooding |
| Jul 6, 2023 | DR-4718-SD | DR | Flood | Flooding |
| Jun 29, 2022 | DR-4656-SD | DR | Severe Storm | Severe Storm, Straight-Line Winds, Tornadoes, And Flooding |
| Apr 5, 2020 | DR-4527-SD | DR | Biological | Covid-19 Pandemic |
| Mar 13, 2020 | EM-3475-SD | EM | Biological | Covid-19 |
| Mar 13, 2020 | EM-3526-SD | EM | Biological | Covid-19 |
| Jun 7, 2019 | DR-4440-SD | DR | Flood | Severe Winter Storm, Snowstorm, And Flooding |
| Feb 1, 2017 | DR-4298-SD | DR | Severe Storm | Severe Winter Storm |
| Mar 10, 2010 | DR-1887-SD | DR | Severe Storm | Severe Winter Storm |
| May 22, 2007 | DR-1702-SD | DR | Severe Storm | Severe Storms, Tornadoes, And Flooding |
How these numbers are built
Drawn from FEMA's OpenFEMA Disaster Declarations Summaries, rebuilt each week. A declaration is counted here once for each designated area it names, so a single disaster covering many localities is counted in each one. For that reason these jurisdiction counts do not sum to South Dakota's statewide total. Tribal areas are counted as their own jurisdictions, separate from the counties they sit within. Totals cover complete fiscal years (Oct 1 to Sep 30); the in-progress year may appear in the most-recent list but is not counted in the totals. Uses OpenFEMA data but is not endorsed by or affiliated with FEMA.