Right now
The most recent data we hold from NOAA arrived 2 hours 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 11 June 2026 at 00:30 UTC. It is kept here as a record.
It is the 7th strongest of the 29 detections recorded within 20 km of this point since 15 April 2026. The last comparable one was on 6 June 2026. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 7:00PM CDT until June 10 at 7:30PM CDT by NWS Des Moines IA
An estimated 15,467 people live within 50 km of this point.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 79 % 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) | 28 / 100 |
| Our confidence | 79% |
| Coordinates | 40.9582, -93.3002 |
| Nearest City | Indianola (50 km) |
| Population Exposed | 15.5K within 50 km |
| Impact Tier | significant |
| Date | 2026-06-11 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3f331ed7aaf926b2c33dc998f255c7a3 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jasper, IA; Marion, IA; Polk, IA; Grundy, MO; Mercer, MO; Putnam, MO; Sullivan, MO |
| Headline | Severe Thunderstorm Warning issued June 10 at 7:00PM CDT until June 10 at 7:30PM CDT by NWS Des Moines IA |
| Expires | 2026-06-10T19:30:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3f331ed7aaf926b2c33dc998f255c7a3cf967239.001.1","noaa_urn:oid:2.49.0.1.840.0.38899f3fe451634ebaa2a66359a5974f23347fa1.001.1"] |
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.
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