Right now
The most recent data we hold from NOAA arrived 29 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 20 km from here.
This alert expired on 5 July 2026 at 02:15 UTC. It is kept here as a record.
No stronger detection stands among the 32 recorded within 20 km of this point since 12 May 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 8:27PM CDT until July 4 at 9:15PM CDT by NWS Aberdeen SD
Nearby, since 12 May 2026
- September 5, 2026 · score 16 · 20.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 69% |
| Coordinates | 44.6033, -99.6733 |
| Nearest City | Aberdeen (133 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-05T01:27:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.67ef1ac9d9a036d2046961a615a9343e78f80e19.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hughes, SD; Hyde, SD; Sully, SD |
| Headline | Severe Thunderstorm Warning issued July 4 at 8:27PM CDT until July 4 at 9:15PM CDT by NWS Aberdeen SD |
| Expires | 2026-07-04T21:15:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 14 SSE Seneca |
| Iem County | Hyde |
| Iem State | SD |
| Iem Wfo | ABR |
| Iem Remark | still hailing at the time of report. |
| MergedSources | [{"id":"iem_H_44.790_-99.660_1783212720000","source":"iem","severity":"low","severityValue":25,"timestamp":1783212720000,"latitude":44.79,"longitude":-99.66},{"id":"iem_H_44.870_-99.400_1783207920000","source":"iem","severity":"low","severityValue":25,"timestamp":1783207920000,"latitude":44.87,"longitude":-99.4}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.