Right now
The most recent data we hold from NOAA arrived 71 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 17 May 2026 at 02:00 UTC. It is kept here as a record.
It is the 9th strongest of the 25 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 8:41PM CDT until May 16 at 9:00PM CDT by NWS Omaha/Valley NE
Nearby, since 15 March 2026
- August 28, 2026 · score 16 · 18.4 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
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 | 0.69/1 |
| Coordinates | 40.1717, -98.8635 |
| Nearest City | Hastings (61 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-17T01:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d3ecda759210532f740a50617d498e35 |
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: 2026-05-17T01:41:00.000Z.
First archived: 2026-05-17T01:43:13.619Z. 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 | Butler, NE; Saunders, NE; Republic, KS; Adams, NE; Franklin, NE; Kearney, NE; Webster, NE and 14 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 8:41PM CDT until May 16 at 9:00PM CDT by NWS Omaha/Valley NE |
| Expires | 2026-05-16T21:00:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d3ecda759210532f740a50617d498e35c97d9e9e.001.1","noaa_urn:oid:2.49.0.1.840.0.df39923cf56b352ab2287edd5454e3b8ffafd612.001.1","noaa_urn:oid:2.49.0.1.840.0.3a3448795709cc1c3d8fa680e2ebe97335f23722.001.1","noaa_urn:oid:2.49.0.1.840.0.bb4db3e57189738d8ab3d192e4cb6ff229411647.001.1","noaa_urn:oid:2.49.0.1.840.0.c32708040a0ce107c9756df1f7f938c5e2fae713.001.1","noaa_urn:oid:2.49.0.1.840.0.055a7853e2a15f036a26a70c46aebe53441ad35a.001.1","noaa_urn:oid:2.49.0.1.840.0.5233599c46649980890c9a0564b60db3de9678c3.001.1","noaa_urn:oid:2.49.0.1.840.0.d9e264031554f0dd3f200c5d92a5cfcff58649b8.002.1","noaa_urn:oid:2.49.0.1.840.0.1a3259e940aaa89c51e2868c7a440589fa69d8c6.001.1","noaa_urn:oid:2.49.0.1.840.0.a7a4d925fb43f594112fa263b09b5fea61d7c3f8.001.1","noaa_urn:oid:2.49.0.1.840.0.6b446d2660ccbcce0377e1f528645eeb03327d58.001.1","noaa_urn:oid:2.49.0.1.840.0.65bdefa9126b0655cedd1868db8eb6b3367fd44d.001.1","noaa_urn:oid:2.49.0.1.840.0.5c9205098a3abadbc0c8681595054fcb49773aef.001.1","noaa_urn:oid:2.49.0.1.840.0.6e9da6d20ea08d6e7846bfdf650ce4f59ddcb03f.001.1","noaa_urn:oid:2.49.0.1.840.0.e52358e4d9c6510bc4c4aa762e93483b7a33389e.001.1","noaa_urn:oid:2.49.0.1.840.0.cd04af7f7d289f6b2525c4b406061b653c48b0f4.002.1","noaa_urn:oid:2.49.0.1.840.0.fa8a7728075fcba35badef3da900f3013e09d721.001.1","noaa_urn:oid:2.49.0.1.840.0.6e6825272ccb96926ea975d536ca6992f2247ab9.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | USA Herald |
| MergedSources | [{"id":"gnews_weather_494158_164","source":"google_news","severity":"medium","severityValue":40,"timestamp":1778971352000,"latitude":39.8,"longitude":-98.6},{"id":"gnews_weather_494157_178","source":"google_news","severity":"medium","severityValue":40,"timestamp":1778967806000,"latitude":39.8,"longitude":-98.6}] |
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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