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 20 June 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 15 March 2026 — 21 others scored the same. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 20 at 6:02PM CDT until June 20 at 6:15PM CDT by NWS Goodland KS
Nearby, since 15 March 2026
- May 14, 2026 · score 22 · 23.2 km
How we know
8 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 | 0.70/1 |
| Coordinates | 39.7608, -101.2247 |
| Nearest City | North Platte (156 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-20T23:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1814b87e656821b4a8484fa75558fcaa |
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: 2026-06-20T23:02:00.000Z.
First archived: 2026-06-20T23:06:47.258Z. 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 | Cheyenne, KS; Sheridan, KS; Thomas, KS; Cheyenne, KS; Dundy, NE and 1 more areas |
| Headline | Severe Thunderstorm Warning issued June 20 at 6:02PM CDT until June 20 at 6:15PM CDT by NWS Goodland KS |
| Expires | 2026-06-20T18:15:00-05:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1814b87e656821b4a8484fa75558fcaa1f739d0f.001.1","noaa_urn:oid:2.49.0.1.840.0.2190d7810ba53b393235fcce2184c6f9541e12a6.001.1","noaa_urn:oid:2.49.0.1.840.0.aa9a955081f54f52d449626a4d49833939fd37ea.001.1","noaa_urn:oid:2.49.0.1.840.0.75f70161c36791b147e08e4598e53a5712808bbb.001.1"] |
| Iem TypeSummary | T |
| Iem City | 1 WNW Atwood |
| Iem County | Rawlins |
| Iem State | KS |
| Iem Wfo | GLD |
| Iem Remark | Multiple reports from chasers of a tornado crossing Highway 36 near Atwood. |
| MergedSources | [{"id":"iem_G_40.030_-101.770_1781994780000","source":"iem","severity":"low","severityValue":25,"timestamp":1781994780000,"latitude":40.03,"longitude":-101.77},{"id":"iem_G_39.900_-101.440_1781993940000","source":"iem","severity":"low","severityValue":25,"timestamp":1781993940000,"latitude":39.9,"longitude":-101.44},{"id":"iem_G_39.760_-101.860_1781995620000","source":"iem","severity":"low","severityValue":25,"timestamp":1781995620000,"latitude":39.76,"longitude":-101.86},{"id":"iem_T_39.720_-101.030_1781995080000","source":"iem","severity":"low","severityValue":25,"timestamp":1781995080000,"latitude":39.72,"longitude":-101.03},{"id":"iem_G_39.770_-101.050_1781994540000","source":"iem","severity":"low","severityValue":25,"timestamp":1781994540000,"latitude":39.77,"longitude":-101.05},{"id":"iem_H_40.040_-101.990_1781992740000","source":"iem","severity":"low","severityValue":25,"timestamp":1781992740000,"latitude":40.04,"longitude":-101.99},{"id":"iem_T_39.810_-101.050_1781993220000","source":"iem","severity":"low","severityValue":25,"timestamp":1781993220000,"latitude":39.81,"longitude":-101.05}] |
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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