| Event | Heat Advisory |
| Severity | Moderate |
| Urgency | Expected |
| Certainty | Likely |
| Area | Lyon; Osceola; Dickinson; Sioux; O’Brien; Clay; Gregory; Charles Mix; Douglas; Hutchinson; Turner; Lincoln; Bon Homme; Yankton |
| Effective | 7/20/2026, 7:49:00 PM CDT |
| Expires | 7/20/2026, 9:00:00 PM CDT |
Heat Advisory issued July 20 at 7:49PM CDT until July 20 at 8:00PM CDT by NWS Sioux Falls SD
Details
Decreasing humidity has allowed heat indices to drop below 100
degrees. Therefore, the Heat Advisory will be allowed to expire.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
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