Special Marine Warning Issued for Oahu and Maui County Waters Through 9:30 AM HST
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Special Marine Warning for Oahu and Maui County waters as strong thunderstorms bring 40-knot wind gusts and hazardous sea conditions.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Hawaii Marine Waters
- Issued
- April 6, 2026
- Issuing authority
- NWS Honolulu
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Hawaii Marine Waters.
Alert Details
The National Weather Service in Honolulu has issued a Special Marine Warning for multiple marine channels and coastal waters across Hawaii. The alert was issued at 7:31 AM HST on March 12, 2026, following radar detection of severe weather conditions.
Affected Areas
The warning encompasses the following geographic regions:
- Oahu Windward and Leeward Waters
- Kaiwi Channel
- Maui County Windward and Leeward Waters
- Maalaea Bay
- Pailolo Channel
- Alenuihaha Channel
Specific locations impacted include Cape Halawa, Mokulua Islands, Ilio Point, Kaumalapau Harbor, Hale O Lono Harbor, and FAD Buoys K, MC, and CC.
What You Should Do
Mariners are advised to take immediate safety precautions:
- Prepare for gusty winds, steep and fast-building seas, and blinding downpours.
- Stay low or go below deck to avoid hazards.
- Ensure all persons on board are wearing life jackets.
- Avoid the warning area until conditions improve.
Expected Conditions
As of 7:29 AM HST, radar indicated an area of heavy showers and embedded strong thunderstorms extending from the windward waters of Oahu to Molokai. Additional strong storms were located southwest of Lanai. The system is moving toward the northeast at 30 knots.
Primary Hazards:
- Wind: Gusts up to 40 knots.
- Impact: Small craft could be damaged in briefly higher winds and suddenly higher waves.
Timeline
The Special Marine Warning is effective immediately and is currently set to expire at 9:30 AM HST on March 12, 2026.
Original source: NOAA Official Notice ↗
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