This alert expired on 18 July 2026 at 09:03 UTC. It is kept here as a record.
No stronger detection stands among the 49 recorded within 20 km of this point since 17 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 4:53AM EDT until July 18 at 5:00AM EDT by NWS Baltimore MD/Washington DC
An estimated 20,130 people live within 50 km of this point.
Nearby, since 17 March 2026
- June 11, 2026 · score 28 · 12.9 km
- May 13, 2026 · score 34 · 13.2 km
- July 4, 2026 · score 34 · 18.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 81 % 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) | 34 / 100 |
| Our confidence | 81% |
| Coordinates | 39.3940, -79.2200 |
| Nearest City | Cumberland (49 km) |
| Population Exposed | 20.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T08:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9d6e0123594239cbfac7c35a3814d7fa160b1de0.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Garrett, MD; Mineral, WV |
| Headline | Severe Thunderstorm Warning issued July 18 at 4:53AM EDT until July 18 at 5:00AM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-18T05:03:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.