Right now
The most recent data we hold from NOAA arrived 2 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 18 May 2026 at 04:00 UTC. It is kept here as a record.
No stronger detection stands among the 308 recorded within 20 km of this point since 10 March 2026 — 77 others scored the same. Another comparable one was recorded here earlier the same day. 24 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued May 17 at 6:05PM CDT until May 17 at 11:00PM CDT by NWS Hastings NE
Urban PEI: 15,717 within a heuristic 50 km radius; not unique people.
Nearby, since 10 March 2026
- September 15, 2026 · score 28 · 0.0 km
- September 14, 2026 · score 28 · 0.0 km
- September 12, 2026 · score 28 · 0.0 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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 | High |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 38.5000, -98.8000 |
| Nearest City | Great Bend (16 km) |
| Urban exposure index (PEI) | 15.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-17T23:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.00f89c331ff16b2d6bafa424f964f405 |
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: 2026-05-17T23:05:00.000Z.
First archived: 2026-05-17T23:40:56.524Z. 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 | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Jewell, KS; Mitchell, KS; Clay, NE; Fillmore, NE; Hamilton, NE; Merrick, NE; Nance, NE; Nuckolls, NE; Polk, NE; Thayer, NE; York, NE; Lincoln, KS; Russell, KS; Clay, KS; Cloud, KS; Marshall, KS; Nemaha, KS; Ottawa, KS; Pottawatomie, KS; Republic, KS; Riley, KS; Washington, KS |
| Headline | Tornado Watch issued May 17 at 6:05PM CDT until May 17 at 11:00PM CDT by NWS Hastings NE |
| Expires | 2026-05-17T23:00:00-05:00 |
| SenderName | NWS Hastings NE |
| HasExactCoords | false |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.00f89c331ff16b2d6bafa424f964f405f41a234c.002.1","noaa_urn:oid:2.49.0.1.840.0.eaeb966fda554dba20af0143e26b1a11667a4408.001.1","noaa_urn:oid:2.49.0.1.840.0.748e9da8c6996a866b96a5abf2f429e94f6c03d3.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 5 SW Dorrance |
| Iem County | Russell |
| Iem State | KS |
| Iem Wfo | ICT |
| MergedSources | [{"id":"iem_H_39.060_-98.540_1779057360000","source":"iem","severity":"low","severityValue":25,"timestamp":1779057360000,"latitude":39.06,"longitude":-98.54},{"id":"iem_H_39.010_-98.520_1779059100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059100000,"latitude":39.01,"longitude":-98.52},{"id":"iem_H_38.800_-98.660_1779059460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059460000,"latitude":38.8,"longitude":-98.66}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Review the area, threshold and delivery channel in your account.
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