Right now
The most recent data we hold from NOAA arrived 3 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 27 May 2026 at 23:50 UTC. It is kept here as a record.
It is the 3rd strongest of the 140 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 7:40PM EDT until May 27 at 7:45PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,436,884 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 17, 2026 · score 52 · 4.8 km
- March 16, 2026 · score 52 · 4.8 km
- August 29, 2026 · score 52 · 11.7 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 52 / 100 |
| Our confidence | 91% |
| Coordinates | 35.2733, -81.0444 |
| Nearest City | Gastonia (13 km) |
| Population Exposed | 1.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T23:40:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b358702a5db6c7ee2760cd96bfd52886c1eb67f6.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Gaston, NC |
| Headline | Severe Thunderstorm Warning issued May 27 at 7:40PM EDT until May 27 at 7:45PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-05-27T19:50:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 6 ESE Turnersburg |
| Iem County | Iredell |
| Iem State | NC |
| Iem Wfo | GSP |
| Iem Remark | Trees down on Campground Rd at Mocksville Hwy. |
| MergedSources | [{"id":"iem_O_35.870_-80.710_1779913500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779913500000,"latitude":35.87,"longitude":-80.71},{"id":"iem_D_35.870_-80.710_1779913500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779913500000,"latitude":35.87,"longitude":-80.71}] |
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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