Right now
The most recent data we hold from NOAA arrived 9 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 15 September 2026 at 00:17 UTC. It is kept here as a record.
It is the 32nd strongest of the 55 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 14 at 7:08PM CDT until September 14 at 7:15PM CDT by NWS Omaha/Valley NE
Urban PEI: 331,188 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 15, 2026 · score 49 · 4.7 km
- June 11, 2026 · score 67 · 6.0 km
- May 18, 2026 · score 48 · 10.5 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 40.7817, -96.2618 |
| Nearest City | Lincoln (34 km) |
| Urban exposure index (PEI) | 331.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-15T00:08:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.3ac8f2a239d794b7c92c681014b1a9ce8f0e7355.001.1 |
Physical priority index · v5. 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: 2026-09-15T00:08:00.000Z.
First archived: 2026-09-15T00:15:39.478Z. 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 | Cass, NE; Otoe, NE; Cass, NE; Sarpy, NE; Nuckolls, NE; Thayer, NE and 2 more areas |
| Headline | Severe Thunderstorm Warning issued September 14 at 7:08PM CDT until September 14 at 7:15PM CDT by NWS Omaha/Valley NE |
| Expires | 2026-09-14T19:17:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3ac8f2a239d794b7c92c681014b1a9ce8f0e7355.001.1","noaa_urn:oid:2.49.0.1.840.0.cd1ef48aefea3fe9f6a7f553b9e03b665de8b1b8.001.1","noaa_urn:oid:2.49.0.1.840.0.8a02a3a85d8150486edc6d57b1c3abec491326f5.001.1","noaa_urn:oid:2.49.0.1.840.0.824f802eeb1b3f7bf271189c7f7448dfedbd0612.001.1","noaa_urn:oid:2.49.0.1.840.0.2a8bb47b3520427966f34b24d13463eb447e9a55.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 ENE Davey |
| Spc County | Lancaster |
| Spc State | NE |
| Spc Comments | 3 to 6 inch diameter branches down. Time estimated from radar. (OAX) |
| Google News RssFeed | weather |
| Google News SourceName | Lincoln Journal Star |
| MergedSources | [{"id":"spc_wind_40.99_-96.64_24","source":"spc","severity":"medium","severityValue":45,"timestamp":1789430962816,"latitude":40.99,"longitude":-96.64},{"id":"gnews_weather_497061_209","source":"google_news","severity":"medium","severityValue":40,"timestamp":1789421460000,"latitude":41.26,"longitude":-95.94},{"id":"gnews_weather_497062_211","source":"google_news","severity":"medium","severityValue":40,"timestamp":1789423200000,"latitude":40.8,"longitude":-96.67}] |
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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