This alert expired on 2 September 2026 at 10:00 UTC. It is kept here as a record.
It is the 5th strongest of the 33 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 9 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 2 at 4:18AM CDT until September 2 at 5:00AM CDT by NWS La Crosse WI
An estimated 154,462 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 26, 2026 · score 34 · 5.7 km
- July 9, 2026 · score 43 · 8.5 km
- July 1, 2026 · score 43 · 15.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 37 out of 100, at 91 % 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) | 37 / 100 |
| Our confidence | 91% |
| Coordinates | 43.6571, -92.7957 |
| Nearest City | Austin (14 km) |
| Population Exposed | 154.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T09:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.24452abb77cb7c9fee8461c014d9f4bfdda58232.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Mower, MN |
| Headline | Severe Thunderstorm Warning issued September 2 at 4:18AM CDT until September 2 at 5:00AM CDT by NWS La Crosse WI |
| Expires | 2026-09-02T05:00:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | 63 |
| Spc Location | Saint Charles |
| Spc County | Winona |
| Spc State | MN |
| Spc Comments | Personal Weather Station. (ARX) |
| Iem TypeSummary | G |
| Iem Magnitude | 62 |
| Iem Unit | MPH |
| Iem City | 2 E Kasson |
| Iem County | Dodge |
| Iem State | MN |
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 Austin?
Calamity.live data shows a weather event with CalamityScore 37/100, near Austin (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.