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 01:45 UTC. It is kept here as a record.
It is the 23rd strongest of the 37 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 10 June 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 7:56PM CDT until June 10 at 8:45PM CDT by NWS Quad Cities IA IL
Nearby, since 16 March 2026
- June 11, 2026 · score 16 · 6.7 km
- May 18, 2026 · score 22 · 11.1 km
- May 17, 2026 · score 22 · 19.0 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 | 0.59/1 |
| Coordinates | 39.8828, -93.8662 |
| Nearest City | Liberty (85 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-11T00:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d307420271bda64b4be9a32e5ad284ae |
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: 2026-06-11T00:56:00.000Z.
First archived: 2026-06-11T00:57:31.248Z. 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 | Hancock, IL; Lee, IA; Clark, MO; Lewis, MO; Knox, IL; Marshall, IL; Peoria, IL; Stark, IL and 14 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 7:56PM CDT until June 10 at 8:45PM CDT by NWS Quad Cities IA IL |
| Expires | 2026-06-10T20:45:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d307420271bda64b4be9a32e5ad284aeb27a0702.001.1","noaa_urn:oid:2.49.0.1.840.0.a4d3a7a345bcb7c8f14ba85f631d7171014dd0c0.001.1","noaa_urn:oid:2.49.0.1.840.0.8a357ab6d21abe3554f043b1a86955633a5d3314.001.1","noaa_urn:oid:2.49.0.1.840.0.66c2bfb2311ccfeb1c9d23d4d8f867e8f8135df6.001.1","noaa_urn:oid:2.49.0.1.840.0.cbb89e82332f17c6e38f3aeb743462b9643afaa9.002.1","noaa_urn:oid:2.49.0.1.840.0.0d3a08e06ca1290b80dd070cc683278c1a25e524.002.1","noaa_urn:oid:2.49.0.1.840.0.e27267a5cf6ade75e12ff1a46c26e0ea0e12d7c2.001.1","noaa_urn:oid:2.49.0.1.840.0.47669a94cb3fc848b9e2ccae3d8df31537f63a8e.001.1","noaa_urn:oid:2.49.0.1.840.0.de2c1c97ce79441a789358ff708e73be422e4493.001.1","noaa_urn:oid:2.49.0.1.840.0.32bfa1d28b6dbbac9c873c4a173e7abdc0814b25.002.1","noaa_urn:oid:2.49.0.1.840.0.a104b27ce3637f1db02984df070425b299bc603e.001.1","noaa_urn:oid:2.49.0.1.840.0.fff138e8a9892998d80fddd37d8108c578728d70.001.1","noaa_urn:oid:2.49.0.1.840.0.0908b440930827ba5ca2f9019fad7ee47f0f1583.001.1","noaa_urn:oid:2.49.0.1.840.0.07c35966e6e6ba489efad3075a1bc3372910001e.001.1","noaa_urn:oid:2.49.0.1.840.0.f2dfaf3eebadf4ca626d573a4cabe305c160808a.001.1","noaa_urn:oid:2.49.0.1.840.0.85710c8fda6502492426d51ffa8717a99f97760c.001.1","noaa_urn:oid:2.49.0.1.840.0.bb4d368eec9b7f352c7bb78fc83e623a0fffe264.001.1","noaa_urn:oid:2.49.0.1.840.0.185d1bfd13d43bd2ae70aee67db0e7e1dfb328ac.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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