Special Marine Warning Issued for Big Island Windward Waters Until 2:15 PM HST

Source: NOAA · Big Island Windward Waters, Hawaii

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The National Weather Service has issued a Special Marine Warning for Big Island Windward Waters as severe thunderstorms capable of producing waterspouts move through the region.

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

This notice was issued by NOAA on March 28, 2026 and geographically references Big Island Windward 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, BigIsland) 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 HI has issued a Special Marine Warning for the Big Island Windward Waters. The alert was issued at 12:08 PM HST on March 13, 2026, after radar indicated severe thunderstorms in the area capable of producing hazardous conditions.

Affected Areas

The warning specifically impacts the Big Island Windward Waters. Key locations and landmarks within the warning zone include:

  • Hilo Harbor
  • Cape Kumukahi
  • FAD Buoys HK, E, D, G, SS, and KH

What You Should Do

Mariners and residents in the affected area should take the following precautions immediately:

  • Seek Safe Harbor: Waterspouts can easily overturn boats and create locally hazardous seas. Move to a safe location immediately.
  • Safety Onboard: If you are on a vessel, stay low or go below deck. Ensure all passengers and crew are wearing life jackets.
  • Prepare for Hazards: Be ready for gusty winds, steep and fast-building seas, and blinding downpours that can significantly reduce visibility.

Expected Conditions

As of 12:07 PM HST, severe thunderstorms were located along a line moving northeast at 20 knots. The primary hazards associated with this system include:

  • Waterspouts: Sudden formation of waterspouts that can overturn vessels.
  • Wind: Gusts of 34 knots or greater.
  • Seas: Suddenly higher waves and steep sea conditions.
  • Precipitation: Blinding downpours.

Timeline

The Special Marine Warning is effective immediately as of 12:08 PM HST and is currently scheduled to expire at 2:15 PM HST on March 13, 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?
The National Weather Service has issued a Special Marine Warning for Big Island Windward Waters as severe thunderstorms capable of producing waterspouts move through the region.
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 Big Island Windward 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.