Right now
The most recent data we hold from NOAA arrived 16 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 4 June 2026 at 00:45 UTC. It is kept here as a record.
It is the 15th strongest of the 36 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 3 June 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 3 at 7:01PM CDT until June 3 at 7:45PM CDT by NWS Aberdeen SD
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % 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) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 44.6105, -98.9609 |
| Nearest City | Aberdeen (101 km) |
| Impact Tier | minor |
| Date | 2026-06-04 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.cf1b03edfb8d24c718f4f49c36d40a92 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Brown, SD; Marshall, SD; Beadle, SD; Jones, SD; Lyman, SD and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 3 at 7:01PM CDT until June 3 at 7:45PM CDT by NWS Aberdeen SD |
| Expires | 2026-06-03T19:45:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cf1b03edfb8d24c718f4f49c36d40a92423f7564.001.1","noaa_urn:oid:2.49.0.1.840.0.300816a60ae6849e1ab40f0208f443e6fd12e145.001.1","noaa_urn:oid:2.49.0.1.840.0.58c3f9f9ce2042798ac94e8d3f5fd1c69420a79a.001.1","noaa_urn:oid:2.49.0.1.840.0.3d2e39ab89e59f7f5bf0c366b3075035b86f6b61.001.1","noaa_urn:oid:2.49.0.1.840.0.9ef80b575e5d73d33fdeeac7af2c435030c9c71c.001.1","noaa_urn:oid:2.49.0.1.840.0.d781a83717c506979cf8b152f2b4fa47624fe6f2.001.1"] |
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.
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