Right now
The most recent data we hold from NOAA arrived 57 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 21 June 2026 at 00:30 UTC. It is kept here as a record.
It is the 8th strongest of the 39 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 20 at 6:31PM CDT until June 20 at 7:30PM CDT by NWS Goodland KS
Nearby, since 27 April 2026
- May 16, 2026 · score 46 · 9.2 km
- May 18, 2026 · score 46 · 12.6 km
- June 20, 2026 · score 22 · 14.2 km
How we know
7 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 | 39.2757, -101.4432 |
| Nearest City | Garden City (153 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-20T23:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8a4c9f4b781fa48a94f96043f2ec8cf3 |
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: 2026-06-20T23:31:00.000Z.
First archived: 2026-06-20T23:33:01.108Z. 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 | Decatur, KS; Rawlins, KS; Sheridan, KS; Thomas, KS; Cheyenne, KS; Rawlins, KS; Greeley, KS; Logan, KS; Wallace, KS; Wichita, KS and 1 more areas |
| Headline | Severe Thunderstorm Warning issued June 20 at 6:31PM CDT until June 20 at 7:30PM CDT by NWS Goodland KS |
| Expires | 2026-06-20T19:30:00-05:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8a4c9f4b781fa48a94f96043f2ec8cf33eafec57.001.1","noaa_urn:oid:2.49.0.1.840.0.94a79f66e35a1cbaafe0fc4bb635a93845525473.001.1","noaa_urn:oid:2.49.0.1.840.0.e88b96e8201f1c0386d444394b72eeeb9a547caf.001.1","noaa_urn:oid:2.49.0.1.840.0.eebb11522dc05069093bb51a59670d07a7e0a7b3.001.1"] |
| Iem TypeSummary | 2 |
| Iem City | 2 N Menlo |
| Iem County | Sheridan |
| Iem State | KS |
| Iem Wfo | GLD |
| Iem Remark | Brownout conditions reported near the Sheridan Thomas County Line. Mainly near US 24 and 83. |
| MergedSources | [{"id":"iem_G_39.390_-100.870_1781997360000","source":"iem","severity":"low","severityValue":25,"timestamp":1781997360000,"latitude":39.39,"longitude":-100.87},{"id":"iem_G_39.760_-101.860_1781995620000","source":"iem","severity":"low","severityValue":25,"timestamp":1781995620000,"latitude":39.76,"longitude":-101.86},{"id":"iem_2_39.100_-101.050_1781997480000","source":"iem","severity":"low","severityValue":25,"timestamp":1781997480000,"latitude":39.1,"longitude":-101.05},{"id":"iem_2_39.190_-100.870_1781994780000","source":"iem","severity":"low","severityValue":25,"timestamp":1781994780000,"latitude":39.19,"longitude":-100.87},{"id":"iem_2_39.190_-100.870_1781993100000","source":"iem","severity":"low","severityValue":25,"timestamp":1781993100000,"latitude":39.19,"longitude":-100.87},{"id":"iem_2_39.380_-100.720_1781995920000","source":"iem","severity":"low","severityValue":25,"timestamp":1781995920000,"latitude":39.38,"longitude":-100.72}] |
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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