This alert expired on 2 September 2026 at 20:15 UTC. It is kept here as a record.
It is the 44th strongest of the 61 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Special Marine Warning issued September 2 at 3:21PM EDT until September 2 at 4:15PM EDT by NWS Wakefield VA
Nearby, since 17 March 2026
- June 17, 2026 · score 22 · 3.7 km
- August 31, 2026 · score 28 · 13.2 km
- March 21, 2026 · score 34 · 17.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 66 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 66% |
| Coordinates | 38.0536, -76.0798 |
| Nearest City | Salisbury (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T19:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a3f8f019d5e8f17ee8284f0de893bd0a66ac5092.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Chesapeake Bay from Smith Point to Windmill Point VA; Chesapeake Bay from Drum Point MD to Smith Point VA; Tangier Sound and the inland waters surrounding Bloodsworth Island; 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 |
| Headline | Special Marine Warning issued September 2 at 3:21PM EDT until September 2 at 4:15PM EDT by NWS Wakefield VA |
| Expires | 2026-09-02T16:15:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a3f8f019d5e8f17ee8284f0de893bd0a66ac5092.001.1","noaa_urn:oid:2.49.0.1.840.0.4777773ad21f59c0880f44458ec8b87914696c50.001.1","noaa_urn:oid:2.49.0.1.840.0.eefc2273127524fc003024af34c615e82688d955.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 47 |
| Iem Unit | mph |
| Iem City | 22 NE Cove Point |
| Iem County | ANZ541 |
| Iem State | MD |
| Iem Wfo | LWX |
| Iem Remark | Cambridge-Dorchester Airport. |
| MergedSources | [{"id":"iem_M_38.140_-75.790_1788376620000","source":"iem","severity":"low","severityValue":25,"timestamp":1788376620000,"latitude":38.14,"longitude":-75.79},{"id":"iem_M_38.600_-76.100_1788374100000","source":"iem","severity":"low","severityValue":25,"timestamp":1788374100000,"latitude":38.6,"longitude":-76.1}] |
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 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.