Right now
The most recent data we hold from NOAA arrived 6 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 17 May 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 22 April 2026 — 19 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 3:55PM MDT until May 17 at 4:30PM MDT by NWS Goodland KS
Nearby, since 22 April 2026
- July 23, 2026 · score 22 · 4.8 km
- July 29, 2026 · score 16 · 12.6 km
- May 16, 2026 · score 22 · 14.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 69% |
| Coordinates | 39.2652, -103.1422 |
| Nearest City | Cimarron Hills (142 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-17T21:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b6689c53e3b6950ea0c6da17cd10498e |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cheyenne, CO; Kit Carson, CO; Lincoln, CO |
| Headline | Severe Thunderstorm Warning issued May 17 at 3:55PM MDT until May 17 at 4:30PM MDT by NWS Goodland KS |
| Expires | 2026-05-17T16:30:00-06:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b6689c53e3b6950ea0c6da17cd10498e8f6a14a4.001.1","noaa_urn:oid:2.49.0.1.840.0.766cbacb79fa44549ae3b4f887541835158c5781.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | 8 WSW Limon |
| Iem County | Elbert |
| Iem State | CO |
| Iem Wfo | BOU |
| MergedSources | [{"id":"iem_G_39.270_-103.670_1779052740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779052740000,"latitude":39.27,"longitude":-103.67},{"id":"iem_G_39.210_-103.820_1779051840000","source":"iem","severity":"low","severityValue":25,"timestamp":1779051840000,"latitude":39.21,"longitude":-103.82}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.