This alert expired on 8 August 2026 at 18:00 UTC. It is kept here as a record.
It is the 68th strongest of the 143 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 7 August 2026. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 8 at 12:53PM EDT until August 8 at 2:00PM EDT by NWS Baltimore MD/Washington DC
An estimated 1,261,662 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 11, 2026 · score 52 · 1.6 km
- July 18, 2026 · score 52 · 2.3 km
- March 12, 2026 · score 48 · 2.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 82 % 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) | 46 / 100 |
| Our confidence | 82% |
| Coordinates | 39.4432, -76.0647 |
| Nearest City | Aberdeen (11 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T16:53:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Chesapeake Bay north of Pooles Island MD |
| Headline | Special Marine Warning issued August 8 at 12:53PM EDT until August 8 at 2:00PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-08-08T14:00:00-04:00 |
| 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 46/100, near Aberdeen (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.