Special Marine Warning for Maui County and Big Island Windward Waters Through Early Sunday
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NWS Honolulu has issued a Special Marine Warning for the Alenuihaha Channel and surrounding windward waters as strong thunderstorms produce 40-knot wind gusts.
What this NWS weather alert tells you, and what most readers miss
This notice was issued by NOAA on February 28, 2026 and geographically references Maui and Big Island Windward Waters. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.
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Alert Details
The National Weather Service in Honolulu has issued a Special Marine Warning for several marine zones in Hawaii. The alert was issued at 11:11 PM HST on February 21 and remains in effect until 1:15 AM HST on February 22.
Affected Areas
The warning covers the following geographic regions:
- Alenuihaha Channel
- Big Island Windward Waters
- Maui County Windward Waters
Specific locations impacted include FAD Buoy HO, FAD Buoy M, and FAD Buoy FF.
What You Should Do
Mariners and those in the affected areas should take immediate safety precautions:
- Prepare for Hazards: Be ready for gusty winds, steep and fast-building seas, and blinding downpours.
- Seek Shelter: Stay low or go below deck to avoid being swept overboard.
- Safety Gear: Ensure all individuals on board are wearing life jackets.
- Avoidance: It is recommended to avoid these waters until the warning has expired.
Expected Conditions
At 11:10 PM HST, radar indicated strong thunderstorms located along a line moving northeast at 30 knots.
- Wind Hazards: Gusts up to 40 knots are expected.
- Marine Impact: Small craft could be damaged in briefly higher winds and suddenly higher waves.
- Visibility: Blinding downpours may significantly reduce visibility for navigators.
Timeline
- Effective Since: February 21, 11:11 PM HST
- Expiration: February 22, 1:15 AM HST
Original source: NOAA Official Notice ↗
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