Special Marine Warning Issued for Kauai Channel and Surrounding Waters

Source: NOAA · Kauai Waters, Hawaii

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NWS Honolulu has issued a Special Marine Warning for Kauai waters until 8:45 AM HST due to severe thunderstorms capable of producing waterspouts and 34-knot wind gusts.

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

This notice was issued by NOAA on March 20, 2026 and geographically references Kauai Waters, Hawaii. 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 6:44 AM HST on March 11, 2026, and is effective immediately.

Affected Areas

The warning covers the following marine regions:

  • Kauai Channel
  • Kauai Leeward Waters
  • Kauai Northwest Waters

Specific locations impacted include Makahuena Point, and FAD Buoys KK, CK, PP, AA, and Z.

What You Should Do

Mariners are advised to prepare for gusty winds, steep and fast-building seas, and blinding downpours. Boaters should stay low or go below deck and ensure all individuals on board are wearing life jackets. Avoid these waters until the storm has passed.

Expected Conditions

At 6:44 AM HST, radar indicated severe thunderstorms capable of producing waterspouts. The storms were located along a line extending from 8 nautical miles east of Lehua Rock to 44 nautical miles south of FAD Buoy PP, moving northeast at 15 knots.

Primary Hazards:

  • Waterspouts: These can easily overturn boats and create locally hazardous seas.
  • Wind: Gusts of 34 knots or greater.
  • Waves: Suddenly higher waves that could damage small craft.

Timeline

The Special Marine Warning is in effect from 6:44 AM HST until 8:45 AM HST on March 11, 2026.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Honolulu has issued a Special Marine Warning for Kauai waters until 8:45 AM HST due to severe thunderstorms capable of producing waterspouts and 34-knot 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 Waters, Hawaii. 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.