Right now
The most recent data we hold from NOAA arrived 2 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 18 May 2026 at 22:15 UTC. It is kept here as a record.
It is the 17th strongest of the 70 detections recorded within 20 km of this point since 9 April 2026. Another comparable one was recorded here earlier the same day. 25 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 4:43PM CDT until May 18 at 5:15PM CDT by NWS Hastings NE
Nearby, since 9 April 2026
- July 4, 2026 · score 46 · 3.8 km
- July 4, 2026 · score 46 · 6.5 km
- May 18, 2026 · score 46 · 14.8 km
How we know
6 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 | 39.8176, -97.3662 |
| Nearest City | Manhattan (98 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-18T21:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ffffff1f3202d6dbca0654ff34a8ee84 |
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: 2026-05-18T21:43:00.000Z.
First archived: 2026-05-18T21:44:41.077Z. 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 | Fillmore, NE; Pawnee, NE; Richardson, NE; Republic, KS and 15 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 4:43PM CDT until May 18 at 5:15PM CDT by NWS Hastings NE |
| Expires | 2026-05-18T17:15:00-05:00 |
| SenderName | NWS Hastings NE |
| HasExactCoords | true |
| MergedCount | 19 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ffffff1f3202d6dbca0654ff34a8ee845e3dec4e.001.1","noaa_urn:oid:2.49.0.1.840.0.69b2baa8bf8275542aca1abb7b6953b19d23892c.001.1","noaa_urn:oid:2.49.0.1.840.0.3d3b037177df0baac2b07e7e03988fb9926cb1aa.001.1","noaa_urn:oid:2.49.0.1.840.0.01fbd92f872fc5f920990efc13b7df1c9189796d.001.1","noaa_urn:oid:2.49.0.1.840.0.da10f9e5dc4ffe231c55370bda620ca37b07e8d2.001.1","noaa_urn:oid:2.49.0.1.840.0.7b67874a389487ee9d37e7dc6f04ac08e05dd922.001.1","noaa_urn:oid:2.49.0.1.840.0.fd084f44a01941da2692e6766ace6fa53830e7a0.002.1","noaa_urn:oid:2.49.0.1.840.0.c13323246d887d05439102a2a8926a25bca3f021.001.1","noaa_urn:oid:2.49.0.1.840.0.cbeddc8c726d832364d7bf27931848a05d95e110.002.1","noaa_urn:oid:2.49.0.1.840.0.c93f57e00248dc96fa4d936353edd6f5354cd144.001.1","noaa_urn:oid:2.49.0.1.840.0.b9b15f240045d9ff1a7473de57f4ece23656f328.001.1","noaa_urn:oid:2.49.0.1.840.0.45a604f21e4ee6da7c6bf4fdf06bb641c8e561b1.001.1","noaa_urn:oid:2.49.0.1.840.0.c1d915ddd25e5ce0a9a03bfb9ef58683860b03f6.001.1","noaa_urn:oid:2.49.0.1.840.0.61891238ee040ec5e6684c9a88e83cceaae278c6.001.1","noaa_urn:oid:2.49.0.1.840.0.ffa10ed11bff19c9c8943e64f85696073535aa74.001.1","noaa_urn:oid:2.49.0.1.840.0.84a233586a15981a6345f60d87e7b450fba5bd75.001.1","noaa_urn:oid:2.49.0.1.840.0.4adaca90d1948912f8669d95e4aef749ee927e5d.001.1","noaa_urn:oid:2.49.0.1.840.0.cf73fd738b79710cc1148c02049a3331017c1203.001.1","noaa_urn:oid:2.49.0.1.840.0.b036e3aeb8c7d15b8f52d987d953bf4640feb757.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 S Jamestown |
| Iem County | Cloud |
| Iem State | KS |
| Iem Wfo | TOP |
| MergedSources | [{"id":"iem_T_39.600_-97.110_1779138180000","source":"iem","severity":"low","severityValue":25,"timestamp":1779138180000,"latitude":39.6,"longitude":-97.11},{"id":"iem_H_39.360_-97.430_1779137100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779137100000,"latitude":39.36,"longitude":-97.43},{"id":"iem_H_39.350_-97.450_1779137400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779137400000,"latitude":39.35,"longitude":-97.45},{"id":"iem_T_39.610_-97.140_1779138240000","source":"iem","severity":"low","severityValue":25,"timestamp":1779138240000,"latitude":39.61,"longitude":-97.14},{"id":"iem_H_39.550_-97.860_1779130260000","source":"iem","severity":"low","severityValue":25,"timestamp":1779130260000,"latitude":39.55,"longitude":-97.86}] |
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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