This alert expired on 18 June 2026 at 23:00 UTC. It is kept here as a record.
No stronger detection stands among the 178 recorded within 20 km of this point since 16 March 2026 — 59 others scored the same. Another comparable one was recorded here earlier the same day. 19 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 18 at 6:15PM EDT until June 18 at 7:00PM EDT by NWS Blacksburg VA
An estimated 261,062 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 4, 2026 · score 43 · 2.6 km
- July 9, 2026 · score 22 · 11.2 km
- August 2, 2026 · score 43 · 15.9 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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) | 43 / 100 |
| Our confidence | 89% |
| Coordinates | 36.3500, -80.6695 |
| Nearest City | Clemmons (45 km) |
| Population Exposed | 261.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T22:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.85beb9a49c08054a1ddb95e463a2271e |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alleghany, NC; Surry, NC; Wilkes, NC; Stokes, NC; Surry, NC; Yadkin, NC |
| Headline | Severe Thunderstorm Warning issued June 18 at 6:15PM EDT until June 18 at 7:00PM EDT by NWS Blacksburg VA |
| Expires | 2026-06-18T19:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.85beb9a49c08054a1ddb95e463a2271ec5bbf36a.001.1","noaa_urn:oid:2.49.0.1.840.0.8b91b739ac2515105be8ea9c7092d8a43e008fbe.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 NE Dobson |
| Iem County | Surry |
| Iem State | NC |
| Iem Wfo | RNK |
| Iem Remark | 911 Call Center reported a tree down at the intersection of Rockford street and Old Highway 601 in Mount Airy North Carolina. |
| MergedSources | [{"id":"iem_D_36.430_-80.740_1781816760000","source":"iem","severity":"low","severityValue":25,"timestamp":1781816760000,"latitude":36.43,"longitude":-80.74},{"id":"iem_D_36.430_-80.680_1781817360000","source":"iem","severity":"low","severityValue":25,"timestamp":1781817360000,"latitude":36.43,"longitude":-80.68},{"id":"iem_D_36.420_-80.680_1781817300000","source":"iem","severity":"low","severityValue":25,"timestamp":1781817300000,"latitude":36.42,"longitude":-80.68},{"id":"iem_D_36.420_-80.730_1781817000000","source":"iem","severity":"low","severityValue":25,"timestamp":1781817000000,"latitude":36.42,"longitude":-80.73},{"id":"iem_D_36.470_-80.630_1781817300000","source":"iem","severity":"low","severityValue":25,"timestamp":1781817300000,"latitude":36.47,"longitude":-80.63},{"id":"iem_D_36.410_-80.690_1781817000000","source":"iem","severity":"low","severityValue":25,"timestamp":1781817000000,"latitude":36.41,"longitude":-80.69}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.