Right now
The most recent data we hold from NOAA arrived 9 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 03:33 UTC. It is kept here as a record.
It is the 24th strongest of the 42 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 3 at 10:24PM CDT until June 3 at 10:30PM CDT by NWS Sioux Falls SD
An estimated 23,657 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 12, 2026 · score 34 · 9.6 km
- July 11, 2026 · score 34 · 9.6 km
- June 8, 2026 · score 34 · 9.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 81 % 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) | 28 / 100 |
| Our confidence | 81% |
| Coordinates | 44.3567, -96.8241 |
| Nearest City | Brookings (6 km) |
| Population Exposed | 23.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-04T03:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.24cb38cb7a5f7544f863ae63814e96b4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hanson, SD; Lake, SD; McCook, SD; Miner, SD; Sanborn, SD; Lac qui Parle, MN; Yellow Medicine, MN |
| Headline | Severe Thunderstorm Warning issued June 3 at 10:24PM CDT until June 3 at 10:30PM CDT by NWS Sioux Falls SD |
| Expires | 2026-06-03T22:33:00-05:00 |
| SenderName | NWS Sioux Falls SD |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.24cb38cb7a5f7544f863ae63814e96b43cf99900.001.1","noaa_urn:oid:2.49.0.1.840.0.3081ea465693f6d95aff9a1a6547bbeaa7954009.001.1"] |
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.
Want to know when something happens near Brookings?