Right now
The most recent data we hold from NOAA arrived 8 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 30 July 2026 at 00:35 UTC. It is kept here as a record.
No stronger detection stands among the 15 recorded within 20 km of this point since 28 June 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 29 at 6:25PM MDT until July 29 at 6:30PM MDT by NWS Salt Lake City UT
Nearby, since 28 June 2026
- July 19, 2026 · score 22 · 15.8 km
- July 20, 2026 · score 22 · 21.3 km
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 | 0.61/1 |
| Coordinates | 38.0820, -108.5630 |
| Nearest City | Montrose (74 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-30T00:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.4be5fa1dc1407fa21cad33b338647812 |
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: 2026-07-30T00:25:00.000Z.
First archived: 2026-07-30T00:30:20.745Z. 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 | Garfield, UT; Wayne, UT; Coconino, AZ; Emery, UT and 9 more areas |
| Headline | Flash Flood Warning issued July 29 at 6:25PM MDT until July 29 at 6:30PM MDT by NWS Salt Lake City UT |
| Expires | 2026-07-29T18:35:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| MergedCount | 16 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4be5fa1dc1407fa21cad33b3386478128f2b5a41.001.1","noaa_urn:oid:2.49.0.1.840.0.48aa8c54b360e5623da98c33ef5daf339da4f0bc.001.1","noaa_urn:oid:2.49.0.1.840.0.a3192e55f25e0fc7dc37e7c11fae775674f86650.001.1","noaa_urn:oid:2.49.0.1.840.0.a520cd3663a3441c7351f783c7dcd8bd941882ea.001.1","noaa_urn:oid:2.49.0.1.840.0.27cff2ef20740fee05504c4f453af0c2fc71a575.001.1","noaa_urn:oid:2.49.0.1.840.0.8a5e59edc57a47b02415c751076cc28c4e7c02f9.001.1","noaa_urn:oid:2.49.0.1.840.0.94db539be5375dc4783d0dbb2bf7b4cfd54dfb8f.001.1","noaa_urn:oid:2.49.0.1.840.0.6ed8b6c36d2c3cd29b651291c5605b77f7164822.001.1","noaa_urn:oid:2.49.0.1.840.0.3f370e5d0761148fb126b1964861a4868b32f163.001.1","noaa_urn:oid:2.49.0.1.840.0.07e58cbb837fbf7d69fb0f04c9823b76d1fc6963.001.1","noaa_urn:oid:2.49.0.1.840.0.7ef8a209296c18a8741bcfb42a7e4214d99aba4b.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.d65b959a5c3f9aa8d3cd816117a063056dff3072.001.1","noaa_urn:oid:2.49.0.1.840.0.8c74e3e26eb2ff71426c3438b158595cb8afc88f.001.1","noaa_urn:oid:2.49.0.1.840.0.59339fc9dd37788e32448b5fd364e7914cbf7408.001.1"] |
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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