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 18 May 2026 at 04:00 UTC. It is kept here as a record.
It is the 8th strongest of the 35 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 4 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 10:50PM CDT until May 17 at 11:00PM CDT by NWS Twin Cities/Chanhassen MN
An estimated 24,563 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 26, 2026 · score 34 · 3.3 km
- July 8, 2026 · score 58 · 7.9 km
- September 2, 2026 · score 37 · 16.5 km
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 80 % 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 | 80% |
| Coordinates | 43.5915, -92.7329 |
| Nearest City | Austin (21 km) |
| Population Exposed | 24.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T03:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ed2b4de5583dfa36804ad710974b6c67 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Freeborn, MN; Chickasaw, IA; Howard, IA; Dodge, MN; Fillmore, MN; Olmsted, MN and 2 more areas |
| Headline | Severe Thunderstorm Warning issued May 17 at 10:50PM CDT until May 17 at 11:00PM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-05-17T23:00:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ed2b4de5583dfa36804ad710974b6c676a90f473.001.1","noaa_urn:oid:2.49.0.1.840.0.e23510cadd6979d4c33e14fcc035f3179a1fb296.001.1","noaa_urn:oid:2.49.0.1.840.0.0176f424a22b9f392d998a312180fe0b84b1b70c.001.1","noaa_urn:oid:2.49.0.1.840.0.84c2ca7427059cfeff6481e37c48958461fe3dd7.001.1","noaa_urn:oid:2.49.0.1.840.0.f1af1734a4735db4f286ec7f02fcb045bc84660e.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 Austin?
Calamity.live data shows a weather event with CalamityScore 34/100, near Austin (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.