Right now
The most recent data we hold from NOAA arrived 6 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 03:45 UTC. It is kept here as a record.
It is the 23rd strongest of the 40 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 16 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 3 at 10:00PM CDT until June 3 at 10:45PM CDT by NWS Twin Cities/Chanhassen MN
An estimated 23,657 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 12, 2026 · score 34 · 7.3 km
- July 11, 2026 · score 34 · 7.3 km
- June 8, 2026 · score 34 · 8.0 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 | 44.3660, -96.9226 |
| Nearest City | Brookings (12 km) |
| Population Exposed | 23.7K within 50 km |
| Impact Tier | significant |
| 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.d63fb62ff7d06771a33795e58c9eac12 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lac qui Parle, MN; Yellow Medicine, MN; Davison, SD; Hanson, SD; Lake, SD; McCook, SD; Miner, SD; Sanborn, SD |
| Headline | Severe Thunderstorm Warning issued June 3 at 10:00PM CDT until June 3 at 10:45PM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-06-03T22:45:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d63fb62ff7d06771a33795e58c9eac12c2c67562.001.1","noaa_urn:oid:2.49.0.1.840.0.38a59c33680e3606393b9fefb8e4174636f3008a.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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