This alert expired on 30 August 2026 at 23:34 UTC. It is kept here as a record.
It is the 10th strongest of the 11 detections recorded within 20 km of this point since 25 July 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 5:24PM MDT until August 30 at 5:30PM MDT by NWS Salt Lake City UT
Nearby, since 25 July 2026
- July 25, 2026 · score 22 · 22.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 65 % 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) | 16 / 100 |
| Our confidence | 65% |
| Coordinates | 38.3460, -110.9700 |
| Nearest City | Cedar City (198 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T23:24:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Wayne, UT |
| Headline | Severe Thunderstorm Warning issued August 30 at 5:24PM MDT until August 30 at 5:30PM MDT by NWS Salt Lake City UT |
| Expires | 2026-08-30T17:34:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9808e6c5e743f50b56ce770d382ca63ee729b3fd.001.1","noaa_urn:oid:2.49.0.1.840.0.9808e6c5e743f50b56ce770d382ca63ee729b3fd.001.1"] |
| Iem TypeSummary | F |
| Iem City | 2 NE Fruita |
| Iem County | Wayne |
| Iem State | UT |
| Iem Wfo | SLC |
| Iem Remark | Park Service employees relayed report(s) of waterfalls forming on the north side of Highway 24. Location estimated. |
| MergedSources | [{"id":"iem_F_38.310_-111.230_1788131400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788131400000,"latitude":38.31,"longitude":-111.23}] |
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 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 16/100, near Cedar City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.