Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest 11 km from here.
This alert expired on 12 September 2026 at 01:45 UTC. It is kept here as a record.
It is the 106th strongest of the 125 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 7 September 2026. 105 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 11 at 7:43PM CDT until September 11 at 8:45PM CDT by NWS Duluth MN
Nearby, since 15 March 2026
- June 9, 2026 · score 16 · 16.8 km
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 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. 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 | 60% |
| Coordinates | 46.1978, -95.2555 |
| Nearest City | Sartell (103 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-12T00:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.3650a755f42c34cd45b0fed71c94ad5fbb37182b.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cass, MN; Stevens, MN; Wadena, MN and 2 more areas |
| Headline | Severe Thunderstorm Warning issued September 11 at 7:43PM CDT until September 11 at 8:45PM CDT by NWS Duluth MN |
| Expires | 2026-09-11T20:45:00-05:00 |
| SenderName | NWS Duluth MN |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3650a755f42c34cd45b0fed71c94ad5fbb37182b.001.1","noaa_urn:oid:2.49.0.1.840.0.db46bc78ad1aed0bcb659fe71f1b7e2081fc44b4.001.1","noaa_urn:oid:2.49.0.1.840.0.473f39f46c20e69193dbb76b8d6be59011206210.001.1","noaa_urn:oid:2.49.0.1.840.0.c0ae325a2f28ee2c5b2bd42f2ddee604b9c0c6b6.001.1","noaa_urn:oid:2.49.0.1.840.0.fae8a742571a492b93285d51e7f064970ae2d94f.002.1","noaa_urn:oid:2.49.0.1.840.0.18ecf0dc786e667fca8c2820804997c249c2d94b.001.1","noaa_urn:oid:2.49.0.1.840.0.609284745c7b4fdc44dd552fbf407fafecb4953f.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?