This alert expired on 7 August 2026 at 00:45 UTC. It is kept here as a record.
It is the 4th strongest of the 155 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 6 at 7:52PM EDT until August 6 at 8:45PM EDT by NWS Baltimore MD/Washington DC
An estimated 1,497,598 people live within 50 km of this point.
Nearby, since 11 March 2026
- July 28, 2026 · score 76 · 1.4 km
- June 22, 2026 · score 52 · 3.1 km
- June 15, 2026 · score 52 · 3.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 79 % 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) | 52 / 100 |
| Our confidence | 79% |
| Coordinates | 39.3450, -76.1175 |
| Nearest City | Edgewood (17 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T23:52:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Chesapeake Bay north of Pooles Island MD; Chesapeake Bay from Pooles Island to Sandy Point MD |
| Headline | Special Marine Warning issued August 6 at 7:52PM EDT until August 6 at 8:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-08-06T20:45:00-04:00 |
| 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 52/100, near Edgewood (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.