Special Marine Warning for Big Island Windward Waters
A Special Marine Warning has been issued by NWS Honolulu HI for Big Island Windward Waters, effective until 4:30 AM HST on April 8, 2026, due to strong thunderstorms with gusty winds and possible waterspouts.
Special Marine Warning Alert
Alert Details
This Special Marine Warning has been issued by the National Weather Service in Honolulu, HI. It is effective from 2:27 AM HST on April 8, 2026, until 4:30 AM HST on the same day.
Affected Areas
The warning affects Big Island Windward Waters, including specific locations such as Cape Kumukahi, FAD Buoy E, FAD Buoy D, FAD Buoy G, FAD Buoy SS, Hilo Harbor, FAD Buoy KH, and FAD Buoy RN.
What You Should Do
Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. If caught on the open water, stay below deck if possible due to frequent lightning.
Expected Conditions
A strong thunderstorm is capable of producing gusty winds of 34 knots or greater and waterspouts. The source is radar, and impacts include potential overturning of boats and hazardous seas for small craft.
Timeline
The alert is effective from 2:27 AM HST to 4:30 AM HST on April 8, 2026.
Source: NOAA Official Notice