| Event | Dense Fog Advisory |
| Severity | Moderate |
| Urgency | Expected |
| Certainty | Likely |
| Area | Bon Homme; Yankton |
| Effective | 8/20/2026, 5:54:00 AM CDT |
| Expires | 8/20/2026, 9:00:00 AM CDT |
Dense Fog Advisory issued August 20 at 5:54AM CDT until August 20 at 9:00AM CDT by NWS Sioux Falls SD
Details
* WHAT…Visibility below one half a mile in dense fog.
* WHERE…Bon Homme and Yankton Counties.
* WHEN…Until 9 AM CDT this morning.
* IMPACTS…Low visibility could make driving conditions hazardous.
Instructions
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
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