This alert expired on 14 March 2026 at 00:15 UTC. It is kept here as a record.
It is the strongest of the 6 detections recorded within 20 km of this point since 13 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 13 at 12:08PM HST until March 13 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 60 % 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 | 60% |
| Coordinates | 19.5589, -154.8333 |
| Nearest City | Hilo (33 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-13T22:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special-Marine-Warning_noaa_urn-oid-2_49_0_1_840_0_904e4b32a3935cff8c341498979a2206 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Big Island Windward Waters |
| Headline | Special Marine Warning issued March 13 at 12:08PM HST until March 13 at 2:15PM HST by NWS Honolulu HI |
| Expires | 2026-03-13T14:15:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.904e4b32a3935cff8c341498979a2206388d4148.001.1","noaa_urn:oid:2.49.0.1.840.0.67c1b72f5db210d345b98b0241e0ae6eeff92c13.001.1"] |
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 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.