Right now
The most recent data we hold from NOAA arrived 28 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 09:45 UTC. It is kept here as a record.
It is the 10th strongest of the 60 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 8 June 2026. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 3:59AM CDT until June 11 at 4:45AM CDT by NWS Omaha/Valley NE
Nearby, since 16 March 2026
- May 16, 2026 · score 43 · 10.1 km
- June 8, 2026 · score 22 · 13.5 km
- May 31, 2026 · score 49 · 23.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 40.7375, -97.3532 |
| Nearest City | Lincoln (58 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-11T08:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a32e43cb587c51bf56b280132e142a09 |
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: 2026-06-11T08:59:00.000Z.
First archived: 2026-06-11T09:04:46.682Z. 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 | Lancaster, NE; Saline, NE; Seward, NE; Clay, NE; Fillmore, NE; Hamilton, NE; York, NE; Cass, NE; Lancaster, NE; Otoe, NE and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 3:59AM CDT until June 11 at 4:45AM CDT by NWS Omaha/Valley NE |
| Expires | 2026-06-11T04:45:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a32e43cb587c51bf56b280132e142a09d02d932c.001.1","noaa_urn:oid:2.49.0.1.840.0.6d7ea77ba17d6c0bf3f980b0726d1481c903d3ce.001.1","noaa_urn:oid:2.49.0.1.840.0.9990853f78afca9c86319b4879fe47d1454381ea.001.1","noaa_urn:oid:2.49.0.1.840.0.2c51684d59b9f2e703cb41dff3e58d27cf65adc9.001.1","noaa_urn:oid:2.49.0.1.840.0.9acae0b2de644fc6741e2e9adc43fb771c170b6d.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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