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Flood Warning issued July 31 at 9:10AM CDT until August 1 at 2:00PM CDT by NWS Aberdeen SD

7.0

45.6133° N, 96.8683° W·US-SD

Started 4h ago

Event Details

Typeflood

Severity7.0

Statusactive

Location45.6133°N, 96.8683°W (US-SD)

Started2026-07-31T14:33:00+00:00

Last Updated2026-07-31T19:10:07.798+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

2007 TRAVERSE County, MINNESOTA Flash Flood (2007)78% match

Flash Flood in MINNESOTA, 2km from current event, $5M in recorded damage

TRAVERSE County, MINNESOTADamage: $5.0M

2008 BIG STONE County, MINNESOTA Flash Flood (2008)69% match

Flash Flood in MINNESOTA, 6km from current event, $50K in recorded damage

BIG STONE County, MINNESOTADamage: $50K

2008 ROBERTS County, SOUTH DAKOTA Flash Flood (2008)64% match

Flash Flood in SOUTH DAKOTA, 27km from current event, $100K in recorded damage

ROBERTS County, SOUTH DAKOTADamage: $100K

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.