Right now
The most recent data we hold from NOAA arrived 54 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 21 July 2026 at 23:45 UTC. It is kept here as a record.
What the source measured
NOAA reported: Special Marine Warning issued July 21 at 6:44PM EDT until July 21 at 7:45PM EDT by NWS Wakefield VA
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. 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 |
| Legacy data-support index | 0.59/1 |
| Coordinates | 38.7390, -75.2423 |
| Nearest City | Salisbury (52 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-21T22:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.6a71211fdf91215404e46f849283b358 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-21T22:44:00.000Z.
First archived: 2026-07-21T22:49:12.616Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
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 Windmill Point to New Point Comfort VA; Rappahannock River from Urbanna to Windmill Point; Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM; Delaware Bay waters north of East Point NJ to Slaughter Beach DE and 5 more areas |
| Headline | Special Marine Warning issued July 21 at 6:44PM EDT until July 21 at 7:45PM EDT by NWS Wakefield VA |
| Expires | 2026-07-21T19:45:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6a71211fdf91215404e46f849283b35878c95457.001.1","noaa_urn:oid:2.49.0.1.840.0.f8afb858516e192318cc76673430e38331fb5e02.001.1","noaa_urn:oid:2.49.0.1.840.0.fa3d2f48abc1ad2a73922e2197667dae37f614ce.001.1","noaa_urn:oid:2.49.0.1.840.0.d1c3f55488f4cb86780ca97c255af9221f5b27f9.001.1","noaa_urn:oid:2.49.0.1.840.0.706014d4255223822c73641e9d4bea57e4735edd.001.1","noaa_urn:oid:2.49.0.1.840.0.6cf3a2bb98c0421dcd42df1744a5a9443c1e3166.001.1","noaa_urn:oid:2.49.0.1.840.0.e150d54e5c2db8fa3c94b385e54620bb4689681b.001.1","noaa_urn:oid:2.49.0.1.840.0.d8773e067b0e84c1b1285318ba03a8cc80cfee04.001.1"] |
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 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.
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