Right now
The most recent data we hold from NOAA arrived 14 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 2 August 2026 at 19:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 194 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 28 July 2026. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 2 at 2:17PM EDT until August 2 at 3:45PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 2,318,936 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- September 2, 2026 · score 46 · 3.0 km
- August 6, 2026 · score 52 · 6.6 km
- March 17, 2026 · score 52 · 7.6 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 58 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 | High |
| Calamity Score (ours) | 58 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 39.2776, -76.3643 |
| Nearest City | Middle River (9 km) |
| Urban exposure index (PEI) | 2.3M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-08-02T18:17:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.c504d5679a58a411e062cefd83400f1dfd1a0df5.001.1 |
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: 2026-08-02T18:17:00.000Z.
First archived: 2026-08-02T18:21:05.754Z. 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 north of Pooles Island MD; Chesapeake Bay from Pooles Island to Sandy Point MD; Patapsco River including Baltimore Harbor; Chester River to Queenstown MD |
| Headline | Special Marine Warning issued August 2 at 2:17PM EDT until August 2 at 3:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-08-02T15:45:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| Ogimet StationId | 72503 |
| Ogimet WindSpeed | 51 |
| Ogimet WindUnit | knots |
| Ogimet Temperature | 25 |
| Ogimet TemperatureUnit | C |
| Ogimet RawSynop | 08,02,11,51,AAXX 02124 72503 32466 61911 10250 20217 30132 40144 50005 91151 333 20244 555 90212= |
| MergedSources | [{"id":"ogimet_72503_1785693124260","source":"ogimet","severity":"high","severityValue":70,"timestamp":1785693124260,"latitude":38.9,"longitude":-77}] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near Middle River?