Right now
The most recent data we hold from NOAA arrived 1 minute 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 13 August 2026 at 21:00 UTC. It is kept here as a record.
It is one of only 4 we have recorded within 20 km of this point since 19 May 2026. The last comparable one was on 8 August 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 13 at 3:58PM EDT until August 13 at 5:00PM EDT by NWS Gray ME
Nearby, since 19 May 2026
- August 8, 2026 · score 22 · 7.9 km
How we know
4 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 | 0.67/1 |
| Coordinates | 43.1600, -69.9020 |
| Nearest City | Biddeford (58 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-08-13T19:58:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fed9c3c1db31fd82eb911603806c6514fa83f695.001.1 |
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: 2026-08-13T19:58:00.000Z.
First archived: 2026-08-13T20:33:25.446Z. 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; 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 |
| Headline | Special Marine Warning issued August 13 at 3:58PM EDT until August 13 at 5:00PM EDT by NWS Gray ME |
| Expires | 2026-08-13T17:00:00-04:00 |
| SenderName | NWS Gray ME |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 69 |
| Iem Unit | MPH |
| Iem City | Portland Jetport |
| Iem County | Cumberland |
| Iem State | ME |
| Iem Wfo | GYX |
| MergedSources | [{"id":"iem_D_43.620_-70.300_1786648980000","source":"iem","severity":"low","severityValue":25,"timestamp":1786648980000,"latitude":43.62,"longitude":-70.3},{"id":"iem_M_43.590_-70.210_1786649820000","source":"iem","severity":"low","severityValue":25,"timestamp":1786649820000,"latitude":43.59,"longitude":-70.21},{"id":"iem_G_43.650_-70.300_1786649220000","source":"iem","severity":"low","severityValue":25,"timestamp":1786649220000,"latitude":43.65,"longitude":-70.3}] |
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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