This alert expired on 5 June 2026 at 21:45 UTC. It is kept here as a record.
No stronger detection stands among the 7 recorded within 20 km of this point since 3 April 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 5 at 4:20PM CDT until June 5 at 4:45PM CDT by NWS Twin Cities/Chanhassen MN
An estimated 19,638 people live within 50 km of this point.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Our confidence | 81% |
| Coordinates | 45.4479, -95.2913 |
| Nearest City | Willmar (41 km) |
| Population Exposed | 19.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-05T21:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c2f69509c81fbebe522ec5a6aaeb8a97 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Swift, MN; Pope, MN; Stearns, MN |
| Headline | Severe Thunderstorm Warning issued June 5 at 4:20PM CDT until June 5 at 4:45PM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-06-05T16:45:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c2f69509c81fbebe522ec5a6aaeb8a97f0f3333a.001.1","noaa_urn:oid:2.49.0.1.840.0.c0297df32652fd6b7bd8fd3aff89a9f737efed11.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.