Honolulu

Squall Slam As Special Marine Warning Rattles Maui And Oahu Waters

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Published on March 12, 2026
Squall Slam As Special Marine Warning Rattles Maui And Oahu WatersSource: X/NWSHonolulu

Thursday morning did not deliver ideal boating weather in the islands, as the National Weather Service in Honolulu issued a Special Marine Warning for waters around Maui and Oahu, including Maalaea Bay, the Pailolo and Alenuihaha channels and the Kaiwi Channel. Forecasters urged mariners to head for protected harbor as strong squalls moved through, warning of sudden heavy showers, rapidly falling visibility and gusts that could reach damaging levels in the affected zones. Boat operators, tour companies and shoreline users were advised to secure gear and hold off on departures until the seas settle down.

Where The Warning Hits

The list of threatened zones was posted on X by the Hawaii Emergency Management Agency. It names Maui County Windward Waters, Oahu Windward Waters, Alenuihaha Channel, Maui County Leeward Waters, Oahu Leeward Waters, Kaiwi Channel, Pailolo Channel and Maalaea Bay. The agency urged mariners to take immediate precautions and stay out of exposed waters while the alert is in effect.

What The Bulletin Said And Why It Matters

The National Weather Service in Honolulu's official bulletin put the Special Marine Warning into effect Thursday morning and stated that it would remain active until 9:30 a.m. HST, calling out wind gusts up to 40 knots and rapidly building seas. The bulletin added that "small craft could be damaged," according to the National Weather Service in Honolulu. A Special Marine Warning is issued for short-lived hazards such as thunderstorms producing gusts of 34 knots or greater or waterspouts, and it typically covers events that last two hours or less, according to the National Weather Service.

Safety Steps And Local Context

Local authorities and ocean-safety agencies have urged anyone thinking about getting in the water to check with lifeguards and county emergency channels first and to steer clear of beach access points that are flying danger flags. Spectrum News 1 Hawaii has advised residents to brace for severe weather, avoid fast-moving water and treat lifeguard directions as non-negotiable. Mariners already underway are being told to head for protected harbors, confirm that life jackets are accessible for everyone on board and secure all loose gear until officials say conditions have improved.