This alert expired on 6 June 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 30 recorded within 20 km of this point since 17 April 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 5 at 10:37PM CDT until June 5 at 11:15PM CDT by NWS Des Moines IA
An estimated 462,966 people live within 50 km of this point.
Nearby, since 17 April 2026
- July 4, 2026 · score 43 · 9.6 km
- July 21, 2026 · score 37 · 16.4 km
- July 21, 2026 · score 37 · 25.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Our confidence | 81% |
| Coordinates | 41.3880, -93.2740 |
| Nearest City | Indianola (24 km) |
| Population Exposed | 463.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-06T03:37:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.59869068d27ff95880ac0357d9385e1ed66e36cb.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marion, IA; Warren, IA |
| Headline | Tornado Warning issued June 5 at 10:37PM CDT until June 5 at 11:15PM CDT by NWS Des Moines IA |
| Expires | 2026-06-05T23:15:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 Indianola?
Calamity.live data shows a weather event with CalamityScore 67/100, near Indianola (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.