Right now
The most recent data we hold from NOAA arrived 8 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 15 May 2026 at 22:30 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 15 May 2026.
What the source measured
NOAA reported: Special Marine Warning issued May 15 at 10:34AM HST until May 15 at 12:30PM 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 60 % 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 | 60% |
| Coordinates | 22.2712, -158.1759 |
| Nearest City | Koolauloa (78 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-15T20:34:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.a52f47735b4bde274e11a0a4138e32af |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Kauai Windward Waters; Kauai Channel; Oahu Windward Waters; Oahu Windward Waters |
| Headline | Special Marine Warning issued May 15 at 10:34AM HST until May 15 at 12:30PM HST by NWS Honolulu HI |
| Expires | 2026-05-15T12:30:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a52f47735b4bde274e11a0a4138e32af0d8f1f16.001.1","noaa_urn:oid:2.49.0.1.840.0.2531124c98c7a83ba6b952c0b1e8cb28e428b233.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.