Right now
The most recent data we hold from NOAA arrived 28 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 23 June 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 63 recorded within 20 km of this point since 5 May 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 22 at 5:29PM MDT until June 22 at 6:00PM MDT by NWS Denver CO
Nearby, since 5 May 2026
- June 22, 2026 · score 46 · 18.4 km
- May 21, 2026 · score 46 · 25.6 km
How we know
21 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 | 0.67/1 |
| Coordinates | 41.1450, -103.4870 |
| Nearest City | Cheyenne (112 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-22T23:29:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.34e449fdda9b045a5084411ae8786974 |
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: 2026-06-22T23:29:00.000Z.
First archived: 2026-06-22T23:32:28.125Z. 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 | Logan, CO; Washington, CO; Scotts Bluff, NE; Sioux, NE |
| Headline | Tornado Warning issued June 22 at 5:29PM MDT until June 22 at 6:00PM MDT by NWS Denver CO |
| Expires | 2026-06-22T18:00:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.34e449fdda9b045a5084411ae8786974948e07f5.001.1","noaa_urn:oid:2.49.0.1.840.0.08d45d55ca727a5d01c0e06b304c09cbfcaaefb2.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 1 S Atwood |
| Iem County | Logan |
| Iem State | CO |
| Iem Wfo | BOU |
| MergedSources | [{"id":"iem_H_41.040_-103.660_1782165900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782165900000,"latitude":41.04,"longitude":-103.66},{"id":"iem_H_41.240_-103.700_1782161040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782161040000,"latitude":41.24,"longitude":-103.7},{"id":"iem_H_41.240_-103.720_1782161520000","source":"iem","severity":"low","severityValue":25,"timestamp":1782161520000,"latitude":41.24,"longitude":-103.72},{"id":"iem_H_40.990_-103.660_1782166080000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166080000,"latitude":40.99,"longitude":-103.66},{"id":"iem_H_41.140_-103.660_1782162780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162780000,"latitude":41.14,"longitude":-103.66},{"id":"iem_G_40.620_-103.170_1782167340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782167340000,"latitude":40.62,"longitude":-103.17},{"id":"iem_W_41.140_-103.720_1782162300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162300000,"latitude":41.14,"longitude":-103.72},{"id":"iem_H_41.230_-103.660_1782160320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782160320000,"latitude":41.23,"longitude":-103.66},{"id":"iem_H_41.230_-103.660_1782162000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162000000,"latitude":41.23,"longitude":-103.66},{"id":"iem_G_40.680_-103.520_1782168300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782168300000,"latitude":40.68,"longitude":-103.52},{"id":"iem_H_40.620_-103.280_1782168900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782168900000,"latitude":40.62,"longitude":-103.28},{"id":"iem_H_41.110_-103.660_1782162780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162780000,"latitude":41.11,"longitude":-103.66},{"id":"iem_H_40.640_-103.200_1782168540000","source":"iem","severity":"low","severityValue":25,"timestamp":1782168540000,"latitude":40.64,"longitude":-103.2},{"id":"iem_H_41.260_-103.730_1782162180000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162180000,"latitude":41.26,"longitude":-103.73},{"id":"iem_H_41.300_-103.740_1782159840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782159840000,"latitude":41.3,"longitude":-103.74},{"id":"iem_W_41.130_-103.660_1782162060000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162060000,"latitude":41.13,"longitude":-103.66},{"id":"iem_H_41.090_-103.470_1782163680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782163680000,"latitude":41.09,"longitude":-103.47},{"id":"iem_H_41.500_-104.130_1782157140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782157140000,"latitude":41.5,"longitude":-104.13},{"id":"iem_H_40.750_-103.380_1782166980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166980000,"latitude":40.75,"longitude":-103.38},{"id":"iem_H_40.540_-103.270_1782169680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782169680000,"latitude":40.54,"longitude":-103.27}] |
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 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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