Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 23 June 2026 at 01:30 UTC. It is kept here as a record.
It is the 4th strongest of the 45 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 15 June 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 22 at 8:17PM EDT until June 22 at 9:30PM EDT by NWS Wakefield VA
Nearby, since 16 March 2026
- June 15, 2026 · score 22 · 5.3 km
- March 16, 2026 · score 22 · 7.2 km
- July 21, 2026 · score 16 · 10.7 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 37.7238, -76.2900 |
| Nearest City | Williamsburg (63 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-23T00:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.d90217985d0020f077fd96982c60e799 |
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: 2026-06-23T00:17:00.000Z.
First archived: 2026-06-23T00:35:42.865Z. 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 Windmill Point to New Point Comfort VA; Chesapeake Bay from New Point Comfort to Little Creek VA; York River; James River from Jamestown to the James River Bridge; James River from JRB to HRBT, Including the Elizabeth River; 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; Chesapeake Bay from Drum Point MD to Smith Point VA; Tidal Potomac from Cobb Island MD to Smith Point VA; Patuxent River to Broomes Island MD; Tangier Sound and the inland waters surrounding Bloodsworth Island |
| Headline | Special Marine Warning issued June 22 at 8:17PM EDT until June 22 at 9:30PM EDT by NWS Wakefield VA |
| Expires | 2026-06-22T21:30:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d90217985d0020f077fd96982c60e79954b8cdeb.001.1","noaa_urn:oid:2.49.0.1.840.0.516714dbc55296a1066838d22f762ef4554e1e92.001.1","noaa_urn:oid:2.49.0.1.840.0.dba406547844c03995eb4ef0662979f48288eff5.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 NNW Dodlyt |
| Iem County | Northumberland |
| Iem State | VA |
| Iem Wfo | AKQ |
| Iem Remark | Emergency manager reported branches/limbs/trees down along Coan Stage area of Heathsville. |
| MergedSources | [{"id":"iem_M_38.240_-76.830_1782168600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782168600000,"latitude":38.24,"longitude":-76.83},{"id":"iem_D_37.920_-76.520_1782171660000","source":"iem","severity":"low","severityValue":25,"timestamp":1782171660000,"latitude":37.92,"longitude":-76.52}] |
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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