This alert expired on 12 June 2026 at 20:45 UTC. It is kept here as a record.
It is the 11th strongest of the 59 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 12 at 4:32PM EDT until June 12 at 4:45PM EDT by NWS Baltimore MD/Washington DC
An estimated 748,803 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 9, 2026 · score 48 · 6.4 km
- August 10, 2026 · score 48 · 8.7 km
- March 16, 2026 · score 43 · 8.7 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 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 38.5589, -77.6268 |
| Nearest City | Linton Hall (23 km) |
| Population Exposed | 748.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T20:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.52c4a01bdb9d35662eb6c4fee9d70013 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fauquier, VA; Prince William, VA; District of Columbia, DC; Montgomery, MD; Fairfax, VA; Culpeper, VA; Fauquier, VA; Orange, VA; Spotsylvania, VA; Stafford, VA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 12 at 4:32PM EDT until June 12 at 4:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-06-12T16:45:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.52c4a01bdb9d35662eb6c4fee9d70013a6acba52.001.1","noaa_urn:oid:2.49.0.1.840.0.83500480aa48f08b8c33d84613f5d18a0992a058.002.1","noaa_urn:oid:2.49.0.1.840.0.0cebfa7a04cd45ded74e9a6f7222820b1ede117f.001.1","noaa_urn:oid:2.49.0.1.840.0.9898db6282c1b26fe9c0b62257eb47fcb3aafcc5.001.1","noaa_urn:oid:2.49.0.1.840.0.b75107ce7500b392e4a47a7a9aad8e97fbb5a65d.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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near Linton Hall (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.