Right now
The most recent data we hold from NOAA arrived 48 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 30 July 2026 at 01:30 UTC. It is kept here as a record.
What the source measured
NOAA reported: Flash Flood Warning issued July 29 at 4:20PM MDT until July 29 at 7:30PM MDT by NWS Cheyenne WY
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 38.8435, -106.1462 |
| Nearest City | Cañon City (91 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-29T22:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.fc83762194eba59d020e456bd2af4082 |
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: 2026-07-29T22:20:00.000Z.
First archived: 2026-07-29T22:31:36.109Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Laramie, WY; Douglas, CO; Teller, CO and 3 more areas |
| Headline | Flash Flood Warning issued July 29 at 4:20PM MDT until July 29 at 7:30PM MDT by NWS Cheyenne WY |
| Expires | 2026-07-29T19:30:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc83762194eba59d020e456bd2af40825788f47e.001.1","noaa_urn:oid:2.49.0.1.840.0.9a3fbb5491c62eda0deb78a49dd1b16c535fceb7.001.1","noaa_urn:oid:2.49.0.1.840.0.92cc2c21587d680adb70d5e5a479e26631842aee.001.1","noaa_urn:oid:2.49.0.1.840.0.89825221dd1e2a755fe22259e438e08ecdef9f1a.001.1","noaa_urn:oid:2.49.0.1.840.0.c16d1d6fdaf7d12ea9ac1f839615c163450547e6.001.1","noaa_urn:oid:2.49.0.1.840.0.077c8ccf5aef880b6bbc789d398a87cb6c7575b1.001.1","noaa_urn:oid:2.49.0.1.840.0.5e809ad3dfef089837a26bfbf873f1e414514ea5.001.1"] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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