This alert expired on 20 July 2026 at 12:45 UTC. It is kept here as a record.
No stronger detection stands among the 14 recorded within 20 km of this point since 15 March 2026 — 5 others scored the same. The last comparable one was on 8 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 20 at 7:00AM CDT until July 20 at 7:45AM CDT by NWS Twin Cities/Chanhassen MN
An estimated 67,962 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 30, 2026 · score 32 · 9.7 km
- June 30, 2026 · score 32 · 12.8 km
- June 7, 2026 · score 39 · 12.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 43.8300, -93.3243 |
| Nearest City | Albert Lea (20 km) |
| Population Exposed | 68.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T12:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.31ae74aeba47c8d34f5d9a2755a0ca3af4fd0f7a.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Freeborn, MN; Steele, MN; Waseca, MN |
| Headline | Severe Thunderstorm Warning issued July 20 at 7:00AM CDT until July 20 at 7:45AM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-07-20T07:45:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
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 10 February 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 Albert Lea?
Calamity.live data shows a weather event with CalamityScore 39/100, near Albert Lea (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.