This alert expired on 29 May 2026 at 23:30 UTC. It is kept here as a record.
It is the 7th strongest of the 33 detections recorded within 20 km of this point since 3 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 May 29 at 4:08PM MDT until May 29 at 5:30PM MDT by NWS Goodland KS
Nearby, since 3 April 2026
- June 9, 2026 · score 46 · 12.1 km
- May 21, 2026 · score 22 · 25.8 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 68 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 68% |
| Coordinates | 38.9883, -102.5908 |
| Nearest City | Cimarron Hills (183 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-29T22:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3dd03db376bf7623d417f2bfddda9d11 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cheyenne, CO; Cheyenne, CO; Kit Carson, CO |
| Headline | Severe Thunderstorm Warning issued May 29 at 4:08PM MDT until May 29 at 5:30PM MDT by NWS Goodland KS |
| Expires | 2026-05-29T17:30:00-06:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3dd03db376bf7623d417f2bfddda9d117b788a35.001.1","noaa_urn:oid:2.49.0.1.840.0.55a1ac6c1a3f97e718c6fcfdd6f215e24fc2ac83.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 7 ENE Kit Carson |
| Iem County | Cheyenne |
| Iem State | CO |
| Iem Wfo | GLD |
| Iem Remark | Twitter Report with image and measurement of 1.13 inches. Time Estimated from radar. |
| MergedSources | [{"id":"iem_H_38.800_-102.630_1780089180000","source":"iem","severity":"low","severityValue":25,"timestamp":1780089180000,"latitude":38.8,"longitude":-102.63},{"id":"iem_G_38.850_-103.130_1780089780000","source":"iem","severity":"low","severityValue":25,"timestamp":1780089780000,"latitude":38.85,"longitude":-103.13},{"id":"iem_H_39.030_-102.630_1780091160000","source":"iem","severity":"low","severityValue":25,"timestamp":1780091160000,"latitude":39.03,"longitude":-102.63},{"id":"iem_H_38.790_-102.670_1780089120000","source":"iem","severity":"low","severityValue":25,"timestamp":1780089120000,"latitude":38.79,"longitude":-102.67}] |
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 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.