This alert expired on 13 March 2026 at 18:45 UTC. It is kept here as a record.
It is one of only 2 we have recorded within 20 km of this point since 13 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 13 at 6:48AM HST until March 13 at 8:45AM HST by NWS Honolulu HI
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 64 % 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 | 64% |
| Coordinates | 21.6790, -159.7724 |
| Nearest City | Makakilo / Kapolei / Honokai Hale (177 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-13T16:48:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_737ec4870c7dee1b405bed55b3811559e4e05ae7_001_1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Kauai Leeward Waters; Kauai Channel |
| Headline | Special Marine Warning issued March 13 at 6:48AM HST until March 13 at 8:45AM HST by NWS Honolulu HI |
| Expires | 2026-03-13T08:45:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
| Iem TypeSummary | O |
| Iem City | 1 ESE Waimea |
| Iem County | Kauai |
| Iem State | HI |
| Iem Wfo | HFO |
| Iem Remark | A 60 foot tree fell blocking Menehune Rd. A 55 MPH wind gust was reported around this time at Lihue Airport. |
| MergedSources | [{"id":"iem_O_21.960_-159.670_1773409800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773409800000,"latitude":21.96,"longitude":-159.67}] |
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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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.