Right now
The most recent data we hold from SPC arrived 11 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Reported by SPC 19 days ago.
What the source measured
SPC reported: Hail 150 in near 3 ENE Knightdale, Wake, NC. Corrects time of previous hail report from 3 ENE Knightdale. (RAH)
Urban PEI: 1,498,347 within a heuristic 50 km radius; not unique people.
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 58 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 58 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 35.8000, -78.4300 |
| Nearest City | Clayton (17 km) |
| Urban exposure index (PEI) | 1.5M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-06T00:27:21.863Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v4 (historical). 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: 2026-09-06T00:27:21.863Z.
First archived: 2026-09-06T00:27:06.204Z. 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
| ReportType | hail |
| Speed | 150 |
| Location | 3 ENE Knightdale |
| County | Wake |
| State | NC |
| Comments | Corrects time of previous hail report from 3 ENE Knightdale. (RAH) |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 3 ENE Knightdale |
| Iem County | Wake |
| Iem State | NC |
| Iem Wfo | RAH |
| MergedSources | [{"id":"iem_H_35.800_-78.430_1788637500000","source":"iem","severity":"low","severityValue":25,"timestamp":1788637500000,"latitude":35.8,"longitude":-78.43},{"id":"iem_H_35.800_-78.430_1788640320000","source":"iem","severity":"low","severityValue":25,"timestamp":1788640320000,"latitude":35.8,"longitude":-78.43}] |
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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