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 21 June 2026 at 02:15 UTC. It is kept here as a record.
No stronger detection stands among the 35 recorded within 20 km of this point since 28 April 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 20 at 7:35PM MDT until June 20 at 8:15PM MDT by NWS Denver CO
Nearby, since 28 April 2026
- June 21, 2026 · score 46 · 5.0 km
- June 3, 2026 · score 16 · 15.0 km
- May 30, 2026 · score 46 · 27.2 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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 | Critical |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 40.9320, -104.0600 |
| Nearest City | Cheyenne (68 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-21T01:35:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.772627cd49b035509c66b05de1f62bdc602cbe5d.001.1 |
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: 2026-06-21T01:35:00.000Z.
First archived: 2026-06-21T01:42:04.026Z. 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 | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Weld, CO |
| Headline | Tornado Warning issued June 20 at 7:35PM MDT until June 20 at 8:15PM MDT by NWS Denver CO |
| Expires | 2026-06-20T20:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 4 E Carpenter |
| Iem County | Laramie |
| Iem State | WY |
| Iem Wfo | CYS |
| Iem Remark | Report from mPING: Quarter (1.00 in.). 4 miles east of Carpenter. |
| MergedSources | [{"id":"iem_H_41.040_-104.280_1782004560000","source":"iem","severity":"low","severityValue":25,"timestamp":1782004560000,"latitude":41.04,"longitude":-104.28},{"id":"iem_H_41.040_-104.260_1782004140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782004140000,"latitude":41.04,"longitude":-104.26}] |
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 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.
Review the area, threshold and delivery channel in your account.
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