Right now
The most recent data we hold from NOAA arrived 5 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 13 March 2026 at 00:15 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 12 at 1:42PM HST until March 12 at 2:15PM HST by NWS Honolulu HI
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 57 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 57% |
| Coordinates | 19.6629, -156.2153 |
| Nearest City | Hilo (118 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-12T23:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_d76eddd8178e5cbd63911d4f97fbedafc9a3e172_001_1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Alenuihaha Channel; Big Island Leeward Waters |
| Headline | Special Marine Warning issued March 12 at 1:42PM HST until March 12 at 2:15PM HST by NWS Honolulu HI |
| Expires | 2026-03-12T14:15:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
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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