Special Marine Warning Issued for Kauai Northwest and Leeward Waters Through Wednesday Evening

Source: NOAA · Kauai, Hawaii

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NWS Honolulu has issued a Special Marine Warning for Kauai's coastal waters through 7:30 PM HST, citing threats of waterspouts and wind gusts over 34 knots.

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

This notice was issued by NOAA on March 22, 2026 and geographically references Kauai, 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. This alert is effective immediately and remains in place until 7:30 PM HST on March 11, 2026.

Affected Areas

The warning specifically covers the following geographic regions:

  • Kauai Northwest Waters
  • Kauai Leeward Waters

Impacted locations include Lehua Rock, the Southern Tip of Niihau, and Nohili Point.

What You Should Do

Mariners are advised to prepare for gusty winds, steep and fast-building seas, and blinding downpours. The National Weather Service recommends that those on the water stay low or go below deck, and ensure all persons on board are wearing life jackets. Boaters should avoid the area if possible until conditions improve.

Expected Conditions

At 5:26 PM HST, radar indicated a line of showers capable of producing waterspouts. This line extended from 15 nautical miles west of Lehua Rock to 67 nautical miles west of Polihale.

  • Hazards: Waterspouts and wind gusts of 34 knots or greater.
  • Impacts: Waterspouts can create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves.

Timeline

The alert was issued at 5:27 PM HST and is scheduled to expire at 7:30 PM HST. As of the latest report, the storm system is moving northeast at 20 knots.

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's coastal waters through 7:30 PM HST, citing threats of waterspouts and wind gusts over 34 knots.
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, 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.