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 11 June 2026 at 12:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 16 detections recorded within 20 km of this point since 15 April 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 6:52AM CDT until June 11 at 7:15AM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 15 April 2026
- September 2, 2026 · score 16 · 21.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 16 / 100 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 41.2211, -94.4686 |
| Nearest City | Waukee (65 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-11T11:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.71ae182e339f7409fd72d12a6c276e4d |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-11T11:52:00.000Z.
First archived: 2026-06-11T11:53:58.377Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Nodaway, MO; Worth, MO; Audubon, IA; Boone, IA; Carroll, IA; Greene, IA; Guthrie, IA; Adair, IA; Audubon, IA; Cass, IA; Dallas, IA; Guthrie, IA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 6:52AM CDT until June 11 at 7:15AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-06-11T07:15:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.71ae182e339f7409fd72d12a6c276e4dc9f35ba4.001.1","noaa_urn:oid:2.49.0.1.840.0.515ff7abbaf6d36e27d296ec60b55fc1f8a0ee6e.001.1","noaa_urn:oid:2.49.0.1.840.0.3471f2711857c0059636a15ec6252cfe2169cc87.001.1","noaa_urn:oid:2.49.0.1.840.0.27c9a34602e14049c3314bfbd8a4aab50f319ca3.001.1","noaa_urn:oid:2.49.0.1.840.0.880f23f28f4f79fe9cb0e9752b9d59403e341701.001.1"] |
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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