This alert expired on 10 June 2026 at 21:30 UTC. It is kept here as a record.
It is the 79th strongest of the 156 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 10 at 4:30PM EDT until June 10 at 5:30PM EDT by NWS Baltimore MD/Washington DC
An estimated 1,456,229 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 6, 2026 · score 52 · 0.0 km
- August 2, 2026 · score 46 · 2.8 km
- July 6, 2026 · score 52 · 3.5 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 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) | 46 / 100 |
| Our confidence | 80% |
| Coordinates | 39.4040, -76.1385 |
| Nearest City | Aberdeen (12 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T20:30:00.000Z |
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; Patapsco River including Baltimore Harbor |
| Headline | Special Marine Warning issued June 10 at 4:30PM EDT until June 10 at 5:30PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-06-10T17:30:00-04:00 |
| 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 188 scientific monitoring sources.