This alert expired on 18 May 2026 at 00:30 UTC. It is kept here as a record.
No stronger detection stands among the 92 recorded within 20 km of this point since 15 March 2026 — 6 others scored the same. The last comparable one was on 17 May 2026. 39 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 17 at 6:00PM MDT until May 17 at 6:30PM MDT by NWS Goodland KS
Nearby, since 15 March 2026
- May 17, 2026 · score 46 · 4.2 km
- May 16, 2026 · score 46 · 16.1 km
- June 20, 2026 · score 22 · 18.1 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 69 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 69% |
| Coordinates | 39.2317, -101.5783 |
| Nearest City | Garden City (153 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-18T00:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e3444de46cef1c55a18e65152273e155f9ff16a0.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sherman, KS |
| Headline | Tornado Warning issued May 17 at 6:00PM MDT until May 17 at 6:30PM MDT by NWS Goodland KS |
| Expires | 2026-05-17T18:30:00-06:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 66 |
| Iem Unit | MPH |
| Iem City | 13 S Burlington |
| Iem County | Kit Carson |
| Iem State | CO |
| Iem Wfo | GLD |
| Iem Remark | Location Estimated; measured by anemometer. |
| MergedSources | [{"id":"iem_G_39.120_-102.270_1779059220000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059220000,"latitude":39.12,"longitude":-102.27},{"id":"iem_G_39.230_-102.280_1779058740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058740000,"latitude":39.23,"longitude":-102.28},{"id":"iem_H_39.240_-101.820_1779061380000","source":"iem","severity":"low","severityValue":25,"timestamp":1779061380000,"latitude":39.24,"longitude":-101.82},{"id":"iem_G_39.120_-102.270_1779058980000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058980000,"latitude":39.12,"longitude":-102.27}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.