Union County, SD — Threat Level Today
As of Aug 29, 02:13 PM ET, Union County, South Dakota is at WATCH (20/100 on the GridWatch threat index). The primary driver is Thunderstorms expected Monday.
Updated Aug 29, 02:13 PM ET · 14 federal data sources
20 /100
WATCH
Conditions worth monitoring.
- ▸ Thunderstorms expected Monday
Current Signals
| Signal | Status |
|---|---|
| WEATHER ALERTS | No active NWS alerts |
| ACTIVE WILDFIRES | None within 100 miles |
| RIVER FLOODING | All nearby gauges normal |
| AIR QUALITY | AQI 38 (Good) |
| EARTHQUAKES (30D) | M2.6 strongest in region |
| POWER GRID | Central at 82.2% of 7-day peak · 0% of South Dakota customers out |
| FEMA DECLARATIONS (90D) | None in South Dakota |
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