Special Marine Warning Issued for Kauai Waters; Wind Gusts to 50 Knots Expected

Source: NOAA · Kauai Coastal Waters

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The National Weather Service in Honolulu has issued a Special Marine Warning for Kauai's coastal waters until 2:00 AM HST due to heavy showers and dangerous wind gusts.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on April 1, 2026 and geographically references Kauai Coastal 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.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, SpecialMarineWarning, Kauai) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

The National Weather Service in Honolulu has issued a Special Marine Warning for the waters surrounding Kauai. The alert was issued at 12:06 AM HST following radar detection of hazardous conditions.

Affected Areas

The warning covers the following maritime regions:

  • Kauai Northwest Waters
  • Kauai Windward Waters
  • Kauai Leeward Waters

Specific locations impacted include Hanalei Bay, FAD Buoy EK, and FAD Buoy BB.

What You Should Do

Mariners and residents in the affected areas should take immediate safety precautions. Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Boaters are advised to stay low or go below deck and ensure all persons on board are wearing life jackets. Small craft could be damaged in briefly higher winds and suddenly higher waves.

Expected Conditions

At 12:03 AM HST, heavy showers were located near the north shore of Kauai, moving northeast at 45 knots.

  • Wind: Gusts to nearly 50 knots.
  • Hazards: Steep seas and reduced visibility from heavy rain.
  • Source: Radar indicated.

Timeline

The alert is effective immediately and is currently set to expire at 2:00 AM HST on March 15, 2026.

Original source: NOAA Official Notice ↗

All Weather Alerts →

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service in Honolulu has issued a Special Marine Warning for Kauai's coastal waters until 2:00 AM HST due to heavy showers and dangerous wind gusts.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Kauai Coastal Waters. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.