Right now
The most recent data we hold from NOAA arrived 6 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 19 May 2026 at 00:45 UTC. It is kept here as a record.
It is the 13th strongest of the 48 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 18 at 7:12PM CDT until May 18 at 7:45PM CDT by NWS Omaha/Valley NE
Urban PEI: 56,308 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 6, 2026 · score 39 · 4.5 km
- July 9, 2026 · score 39 · 10.5 km
- July 10, 2026 · score 39 · 18.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Legacy data-support index | 0.78/1 |
| Coordinates | 39.5331, -96.2159 |
| Nearest City | Manhattan (50 km) |
| Urban exposure index (PEI) | 56.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T00:12:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b66a090e443a9502946bec235a664b26 |
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: 2026-05-19T00:12:00.000Z.
First archived: 2026-05-19T00:13:59.863Z. 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 | Richardson, NE; Geary, KS; Jackson, KS; Nemaha, KS; Pottawatomie, KS; Riley, KS; Shawnee, KS; Wabaunsee, KS; Butler, KS; Chase, KS; Greenwood, KS; Harvey, KS; McPherson, KS; Marion, KS and 11 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 7:12PM CDT until May 18 at 7:45PM CDT by NWS Omaha/Valley NE |
| Expires | 2026-05-18T19:45:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b66a090e443a9502946bec235a664b26eb11e089.001.1","noaa_urn:oid:2.49.0.1.840.0.2141aeb82dc311406ae2695c7611e929e8a218dd.001.1","noaa_urn:oid:2.49.0.1.840.0.791123aadc41218d6850568832f0bd4a9535b67e.001.1","noaa_urn:oid:2.49.0.1.840.0.a0f6b473cdcb666daf4f637ae43e3e1356836a00.001.1","noaa_urn:oid:2.49.0.1.840.0.a47c922791323035aac02d90fecf5a1b5524ef31.001.1","noaa_urn:oid:2.49.0.1.840.0.1fea9a8ab98e0f3e444447bfb2cf44e520d32172.001.1","noaa_urn:oid:2.49.0.1.840.0.80364ef7fb320637cc7611c74c1bfcb3d6fe0ee5.001.1","noaa_urn:oid:2.49.0.1.840.0.d641c1f87313abd438bb1de51d652b1988184212.002.1","noaa_urn:oid:2.49.0.1.840.0.33f6eea50be81215223e2fc7a8f9d83ab307d6bf.001.1","noaa_urn:oid:2.49.0.1.840.0.8dfa9c31822de1851e8dcf81ddc662efba124e79.001.1","noaa_urn:oid:2.49.0.1.840.0.ed8ca203892707fc9ad259c6691d59c9f7fe96bb.001.1","noaa_urn:oid:2.49.0.1.840.0.3baf368304a97967909d83574d95f182cebb5a73.002.1","noaa_urn:oid:2.49.0.1.840.0.66fa02279c2a88f0acdedf8799a1c9a9776a0143.001.1","noaa_urn:oid:2.49.0.1.840.0.3cfbf1d94b3d876c9574de65270738f55898603b.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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