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.
10 other detections within 20 km in the last 24 hours, the nearest 12 km from here.
This alert expired on 28 May 2026 at 01:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 145 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 8:13PM EDT until May 27 at 9:45PM EDT by NWS Blacksburg VA
An estimated 145,329 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 11, 2026 · score 37 · 6.0 km
- June 22, 2026 · score 43 · 8.6 km
- September 12, 2026 · score 37 · 12.0 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 37.2423, -78.8692 |
| Nearest City | Lynchburg (30 km) |
| Population Exposed | 145.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T00:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.05a8a04521fcac791d9d2880be481884 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Appomattox, VA; Bedford, VA; Campbell, VA; Charlotte, VA; Appomattox, VA; Buckingham, VA; Campbell, VA; Charlotte, VA |
| Headline | Severe Thunderstorm Warning issued May 27 at 8:13PM EDT until May 27 at 9:45PM EDT by NWS Blacksburg VA |
| Expires | 2026-05-27T21:45:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.05a8a04521fcac791d9d2880be481884233a6f0a.001.1","noaa_urn:oid:2.49.0.1.840.0.deabe46c4d2046b03fa66d0e9c1ef6d57fcced90.002.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 5 NE Madison Heights |
| Iem County | Amherst |
| Iem State | VA |
| Iem Wfo | RNK |
| Iem Remark | One-inch diameter hail was observed along Izaak Walton Road. |
| MergedSources | [{"id":"iem_D_36.980_-79.600_1779905700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779905700000,"latitude":36.98,"longitude":-79.6},{"id":"iem_D_36.620_-79.040_1779913560000","source":"iem","severity":"low","severityValue":25,"timestamp":1779913560000,"latitude":36.62,"longitude":-79.04},{"id":"iem_D_36.860_-78.840_1779911460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779911460000,"latitude":36.86,"longitude":-78.84},{"id":"iem_H_37.460_-79.070_1779925260000","source":"iem","severity":"low","severityValue":25,"timestamp":1779925260000,"latitude":37.46,"longitude":-79.07}] |
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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