This alert expired on 15 June 2026 at 02:45 UTC. It is kept here as a record.
It is the 18th strongest of the 100 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 14 at 9:44PM EDT until June 14 at 10:45PM EDT by NWS Baltimore MD/Washington DC
Nearby, since 17 March 2026
- March 21, 2026 · score 34 · 12.6 km
- June 26, 2026 · score 34 · 18.0 km
- June 15, 2026 · score 22 · 19.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 61 % 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) | 22 / 100 |
| Our confidence | 61% |
| Coordinates | 38.2543, -76.2537 |
| Nearest City | Salisbury (58 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-15T01:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.07f5ebb31d024895dc848b1428ac7f61 |
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; Chester River to Queenstown MD; Chesapeake Bay from North Beach to Drum Point MD; Chesapeake Bay from Drum Point MD to Smith Point VA; Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA; Tangier Sound and the inland waters surrounding Bloodsworth Island; Chesapeake Bay from Windmill Point to New Point Comfort VA; Chesapeake Bay from New Point Comfort to Little Creek VA; Chesapeake Bay from Little Creek VA to Cape Henry VA including the Chesapeake Bay Bridge Tunnel; York River; James River from Jamestown to the James River Bridge; James River from JRB to HRBT, Including the Elizabeth River; Coastal waters from Parramore Island to Cape Charles Light VA out 20 NM |
| Headline | Special Marine Warning issued June 14 at 9:44PM EDT until June 14 at 10:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-06-14T22:45:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.07f5ebb31d024895dc848b1428ac7f614002d1db.001.1","noaa_urn:oid:2.49.0.1.840.0.4f4653050fe0e32209644b10f1f7f19f4def2430.001.1","noaa_urn:oid:2.49.0.1.840.0.e4dfa4b2a07b7ab6e02ad7219cd9f91e5b80ac2a.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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.