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Flood Warning issued July 30 at 5:35PM CDT until July 30 at 11:30PM CDT by NWS Aberdeen SD

7.0

45.0757° N, 99.1843° W·US-SD

Started 2h ago

Event Details

Typeflood

Severity7.0

Statusactive

Location45.0757°N, 99.1843°W (US-SD)

Started2026-07-30T22:35:00+00:00

Last Updated2026-07-31T00:40:36.479+00:00

Sourcenoaa_ahps

Source URLapi.weather.gov

Confidence1.00

Impact Zones

Catastrophic Impact Zone

Flash flooding or major flood stage. Immediate danger to life and property.

NWS polygon

Zone estimates are based on scientific models and may differ from actual local conditions.

Impact Analysis

Note: Zone 1 uses NWS polygon geometry. Exposure for this zone is pending polygon-based computation — totals reflect outer zones only.

Population from ACS 5-Year 2022 tract sampling; structure counts from Microsoft Building Footprints or Census ACS housing data, capped by USGS NLCD 2021 developed land. Estimates for situational awareness — not for actuarial, regulatory, or underwriting use.

Historical Comparison

2019 HAND County, SOUTH DAKOTA Flood (2019)71% match

Flood in SOUTH DAKOTA, 23km from current event, $830K in recorded damage

HAND County, SOUTH DAKOTADamage: $830K

2023 HAND County, SOUTH DAKOTA Flood (2023)70% match

Flood in SOUTH DAKOTA, 23km from current event, $150K in recorded damage

HAND County, SOUTH DAKOTADamage: $150K

2019 SPINK County, SOUTH DAKOTA Flood (2019)67% match

Flood in SOUTH DAKOTA, 41km from current event, $1M in recorded damage

SPINK County, SOUTH DAKOTADamage: $1.3M

Historical comparison based on peril type, geography, and severity. Past events do not predict future outcomes.

View on Live Map

US-SD flood hazard profile All US hazard profiles Scoring methodology

Zone estimates are based on scientific models and may differ from actual local conditions.