This alert expired on 23 July 2026 at 02:02 UTC. It is kept here as a record.
No stronger detection stands among the 41 recorded within 20 km of this point since 15 March 2026 — 2 others scored the same. The last comparable one was on 22 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 22 at 7:52PM MDT until July 22 at 8:00PM MDT by NWS Grand Junction CO
An estimated 80,247 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 21, 2026 · score 32 · 5.2 km
- July 22, 2026 · score 39 · 21.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 39.0950, -108.4700 |
| Nearest City | Clifton (2 km) |
| Population Exposed | 80.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-23T01:52:00.000Z |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Mesa, CO |
| Headline | Flood Warning issued July 22 at 7:52PM MDT until July 22 at 8:00PM MDT by NWS Grand Junction CO |
| Expires | 2026-07-22T20:02:00-06:00 |
| SenderName | NWS Grand Junction CO |
| HasExactCoords | true |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 39/100, near Clifton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.