Right now
The most recent data we hold from NOAA arrived 11 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 22 June 2026 at 22:00 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 13 April 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 22 at 3:24PM MDT until June 22 at 4:00PM MDT by NWS Rapid City SD
How we know
2 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 | 0.62/1 |
| Coordinates | 43.3869, -105.3012 |
| Nearest City | Casper (100 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-22T21:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.7794fc8bbbb52937cedefdc89ad2dbb3 |
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: 2026-06-22T21:24:00.000Z.
First archived: 2026-06-22T21:26:34.426Z. 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 | Campbell, WY; Goshen, WY; Niobrara, WY; Platte, WY |
| Headline | Tornado Warning issued June 22 at 3:24PM MDT until June 22 at 4:00PM MDT by NWS Rapid City SD |
| Expires | 2026-06-22T16:00:00-06:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7794fc8bbbb52937cedefdc89ad2dbb3fd76e10f.001.1","noaa_urn:oid:2.49.0.1.840.0.d1a1b9ed7df49d93f391ff7f85b7db88d678719e.001.1","noaa_urn:oid:2.49.0.1.840.0.1ad9ed5ff7c4cf65af3f57d0dc9fe00a090746c6.001.1"] |
| Iem TypeSummary | T |
| Iem City | 7 WNW Savageton |
| Iem County | Campbell |
| Iem State | WY |
| Iem Wfo | UNR |
| Iem Remark | Photo and video received. |
| MergedSources | [{"id":"iem_T_43.890_-105.920_1782160500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782160500000,"latitude":43.89,"longitude":-105.92}] |
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.
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