This alert expired on 16 March 2026 at 15:30 UTC. It is kept here as a record.
It is the 5th strongest of the 28 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 11:00AM EDT until March 16 at 11:30AM EDT by NWS Blacksburg VA
An estimated 540,460 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 7, 2026 · score 48 · 11.8 km
- July 20, 2026 · score 48 · 12.0 km
- August 10, 2026 · score 48 · 12.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 78 % 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) | 48 / 100 |
| Our confidence | 78% |
| Coordinates | 36.0598, -79.6521 |
| Nearest City | Greensboro (12 km) |
| Population Exposed | 540.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T15:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.71415e3893b7617ccb2be784d0d817c4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rockingham, NC; Franklin, VA; Henry, VA; Pittsylvania, VA; City of Martinsville, VA; Alamance, NC; Chatham, NC; Guilford, NC; Lee, NC; Montgomery, NC; Moore, NC; Orange, NC; Randolph, NC |
| Headline | Severe Thunderstorm Warning issued March 16 at 11:00AM EDT until March 16 at 11:30AM EDT by NWS Blacksburg VA |
| Expires | 2026-03-16T11:30:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.71415e3893b7617ccb2be784d0d817c40cfc77c7.001.1","noaa_urn:oid:2.49.0.1.840.0.99a170ef58917b5be9e6114d4c1bd0eb957bceac.001.1"] |
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.
Want to know when something happens near Greensboro?
Calamity.live data shows a weather event with CalamityScore 48/100, near Greensboro (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.