Right now
The most recent data we hold from NOAA arrived 21 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 28 July 2026 at 23:15 UTC. It is kept here as a record.
It is the 17th strongest of the 34 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 28 at 4:38PM MDT until July 28 at 5:15PM MDT by NWS Denver CO
Nearby, since 15 March 2026
- July 28, 2026 · score 22 · 13.5 km
- July 11, 2026 · score 22 · 14.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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 | Medium |
| Calamity Score (ours) | 16 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 39.6237, -103.7878 |
| Nearest City | Parker (84 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-28T22:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f6c84504bd1737b917ba7d82f20ff864 |
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: 2026-07-28T22:38:00.000Z.
First archived: 2026-07-28T22:42:29.079Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lincoln, CO; Washington, CO; Adams, CO; Washington, CO and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 4:38PM MDT until July 28 at 5:15PM MDT by NWS Denver CO |
| Expires | 2026-07-28T17:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f6c84504bd1737b917ba7d82f20ff8647d3b6d41.001.1","noaa_urn:oid:2.49.0.1.840.0.5835759067d9646e76276618998453534846cf02.001.1","noaa_urn:oid:2.49.0.1.840.0.e682ff51033ab3aaf535574073f14897ad15ec8b.001.1","noaa_urn:oid:2.49.0.1.840.0.5b7811ac5f2389c487799ba7fe87bc43c7641be6.001.1","noaa_urn:oid:2.49.0.1.840.0.a36d6a26efd93fe2105d71e9d53f0b477c8ddeac.001.1","noaa_urn:oid:2.49.0.1.840.0.a31519c0fa277a22e319b1890154aabd6a3da224.001.1","noaa_urn:oid:2.49.0.1.840.0.0fa8a8df79708416fa160cbe561dbdade9097e84.001.1","noaa_urn:oid:2.49.0.1.840.0.6bb5c15a162961c7a3fa574e252aba22394db099.001.1","noaa_urn:oid:2.49.0.1.840.0.30a73ad9cb3c3ca81c605a903fe9a00bd8833e24.001.1"] |
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.
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