This alert expired on 12 March 2026 at 17:30 UTC. It is kept here as a record.
What the source measured
NOAA reported: Special Marine Warning issued March 12 at 6:51AM HST until March 12 at 7:30AM HST by NWS Honolulu HI
Nearby, since 12 March 2026
- March 21, 2026 · score 22 · 24.3 km
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 58 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 58% |
| Coordinates | 21.1919, -157.3267 |
| Nearest City | Hawai‘i Kai (41 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-12T16:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_0b0a84e04dc08f34ac7ce1ee28598edd0818a629_001_1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Oahu Windward Waters; Oahu Leeward Waters; Kaiwi Channel; Maui County Windward Waters; Maui County Leeward Waters; Maalaea Bay; Pailolo Channel; Alenuihaha Channel |
| Headline | Special Marine Warning issued March 12 at 6:51AM HST until March 12 at 7:30AM HST by NWS Honolulu HI |
| Expires | 2026-03-12T07:30:00-10:00 |
| 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 10 February 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.
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 188 scientific monitoring sources.