Right now
The most recent data we hold from SPC arrived 85 minutes ago, and this point is in it.
12 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
No stronger detection stands among the 13 recorded within 20 km of this point since 16 September 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Hail 100 in near East Carbon, Carbon, UT. Quarter sized hail via social media report from media partners. Time estimated via radar. (SLC)
Nearby, since 16 September 2026
- September 17, 2026 · score 28 · 1.7 km
- September 16, 2026 · score 28 · 5.9 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 28 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.48/1 |
| Coordinates | 39.5500, -110.4100 |
| Nearest City | Spanish Fork (123 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-17T06:44:40.582Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v5. 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: spc. Occurrence: 2026-09-17T06:44:40.582Z.
First archived: 2026-09-17T01:57:21.064Z. Material modification: 2026-09-17T06:46:58.871Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-17T06:46:58.871Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:41:37.054Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:36:14.829Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:30:53.010Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:20:10.932Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:14:49.115Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:09:27.433Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T06:03:49.467Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:58:27.339Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:53:06.934Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:47:47.297Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:37:04.844Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:31:46.140Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:26:26.011Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:21:04.953Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:15:45.604Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:10:24.491Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T05:05:02.383Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T04:59:43.171Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
2026-09-17T04:48:59.596Z · data_change
Index 28 → 28; severity high → high; version 5 → 5.
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 100 |
| Location | East Carbon |
| County | Carbon |
| State | UT |
| Comments | Quarter sized hail via social media report from media partners. Time estimated via radar. (SLC) |
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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