This alert expired on 13 June 2026 at 15:00 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 16 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 13 at 9:13AM CDT until June 13 at 10:00AM CDT by NWS Des Moines IA
An estimated 604,158 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 1, 2026 · score 48 · 12.0 km
- April 23, 2026 · score 48 · 21.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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 | Medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 41.1809, -95.3590 |
| Nearest City | Council Bluffs (43 km) |
| Population Exposed | 604.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-13T14:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3addbdb5f346ae94c4508ee77763ee82 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, IA; Cass, IA; Mills, IA; Pottawattamie, IA; Mills, IA; Montgomery, IA; Pottawattamie, IA |
| Headline | Severe Thunderstorm Warning issued June 13 at 9:13AM CDT until June 13 at 10:00AM CDT by NWS Des Moines IA |
| Expires | 2026-06-13T10:00:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3addbdb5f346ae94c4508ee77763ee8274107d23.001.1","noaa_urn:oid:2.49.0.1.840.0.0048857a7a05c562a8f994d145aadb5cbb40b19c.002.1","noaa_urn:oid:2.49.0.1.840.0.3b50f04036ff46e91496231431b97e2fa73088f2.001.1"] |
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?
Calamity.live data shows a weather event with CalamityScore 48/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.