This alert expired on 12 March 2026 at 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 12 March 2026 — 9 others scored the same.
What the source measured
NOAA reported: Special Marine Warning issued March 12 at 9:00AM HST until March 12 at 9:30AM HST by NWS Honolulu HI
Nearby, since 12 March 2026
- March 15, 2026 · score 22 · 8.8 km
- March 14, 2026 · score 22 · 8.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 63 % 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 | 63% |
| Coordinates | 21.0729, -156.6765 |
| Nearest City | Wailuku (27 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-12T19:00:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Oahu Windward 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 9:00AM HST until March 12 at 9:30AM HST by NWS Honolulu HI |
| Expires | 2026-03-12T09:30:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 10 NW Napili |
| Iem County | Maui |
| Iem State | HI |
| Iem Wfo | HFO |
| Iem Remark | Landslide at mile marker 16.5 of Kamehameha V Hwy. |
| MergedSources | [{"id":"iem_F_21.070_-156.800_1773339300000","source":"iem","severity":"low","severityValue":25,"timestamp":1773339300000,"latitude":21.07,"longitude":-156.8}] |
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, near Wailuku (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.