Right now
The most recent data we hold from NOAA arrived 6 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 16 July 2026 at 20:45 UTC. It is kept here as a record.
No stronger detection stands among the 31 recorded within 20 km of this point since 22 March 2026 — 3 others scored the same. The last comparable one was on 3 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 16 at 3:19PM EDT until July 16 at 4:45PM EDT by NWS Gray ME
Urban PEI: 217,549 within a heuristic 50 km radius; not unique people.
Nearby, since 22 March 2026
- July 3, 2026 · score 43 · 9.5 km
- August 13, 2026 · score 43 · 15.5 km
- August 13, 2026 · score 43 · 19.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 43.6028, -70.0884 |
| Nearest City | South Portland (13 km) |
| Urban exposure index (PEI) | 217.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-16T19:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.4574ac2d80dded42bd7ab985869460ea |
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: 2026-07-16T19:19:00.000Z.
First archived: 2026-07-16T19:29:00.568Z. 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 | Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM; Casco Bay; Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM; Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM; Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM; Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM; Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM; Casco Bay; Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM |
| Headline | Special Marine Warning issued July 16 at 3:19PM EDT until July 16 at 4:45PM EDT by NWS Gray ME |
| Expires | 2026-07-16T16:45:00-04:00 |
| SenderName | NWS Gray ME |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4574ac2d80dded42bd7ab985869460ea5d08926b.001.1","noaa_urn:oid:2.49.0.1.840.0.940800fcebf71627a97aea09bac9c81a247aa181.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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