Right now
The most recent data we hold from NOAA arrived 2 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 6 August 2026 at 23:45 UTC. It is kept here as a record.
It is the 59th strongest of the 93 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 6 at 7:35PM EDT until August 6 at 7:45PM EDT by NWS Raleigh NC
Urban PEI: 1,562,596 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 6, 2026 · score 52 · 0.0 km
- July 29, 2026 · score 52 · 3.3 km
- August 8, 2026 · score 52 · 6.0 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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) | 46 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 35.9393, -78.9980 |
| Nearest City | Chapel Hill (6 km) |
| Urban exposure index (PEI) | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T23:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.27b4875bdb713319377b8a638c108afc |
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: 2026-08-06T23:35:00.000Z.
First archived: 2026-08-06T23:39:35.267Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chatham, NC; Orange, NC; Durham, NC; Granville, NC; Orange, NC; Wake, NC |
| Headline | Severe Thunderstorm Warning issued August 6 at 7:35PM EDT until August 6 at 7:45PM EDT by NWS Raleigh NC |
| Expires | 2026-08-06T19:45:00-04:00 |
| SenderName | NWS Raleigh NC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.27b4875bdb713319377b8a638c108afcf1edf273.002.1","noaa_urn:oid:2.49.0.1.840.0.94d17537996e3e8cbbeda2174fd79f31a2b63f2a.001.1"] |
| Iem TypeSummary | D |
| Iem City | 4 WNW Glendon |
| Iem County | Moore |
| Iem State | NC |
| Iem Wfo | RAH |
| Iem Remark | Tree down in roadway, blocking both lanes of travel. |
| MergedSources | [{"id":"iem_D_35.480_-79.600_1786054800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786054800000,"latitude":35.48,"longitude":-79.6},{"id":"iem_D_35.710_-79.420_1786056480000","source":"iem","severity":"low","severityValue":25,"timestamp":1786056480000,"latitude":35.71,"longitude":-79.42},{"id":"iem_D_35.460_-79.470_1786054800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786054800000,"latitude":35.46,"longitude":-79.47},{"id":"iem_D_35.780_-79.750_1786056180000","source":"iem","severity":"low","severityValue":25,"timestamp":1786056180000,"latitude":35.78,"longitude":-79.75},{"id":"iem_D_35.490_-79.590_1786054680000","source":"iem","severity":"low","severityValue":25,"timestamp":1786054680000,"latitude":35.49,"longitude":-79.59}] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near Chapel Hill?