NWS Honolulu HIMA.W 0101September 17, 2026
Special Marine Warning: Alenuihaha Channel, Big Island Windward Waters and Big Island Leeward Waters
The National Weather Service office in Honolulu issued a special marine warning for Alenuihaha Channel, Big Island Windward Waters and Big Island Leeward Waters, which was in force until 10:30 a.m. local time on September 17. It was the 101st special marine warning the NWS office in Honolulu issued in 2026.
ExpiredWarning
In force for 56 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Honolulu HI
- Area
- Alenuihaha Channel, Big Island Windward Waters and Big Island Leeward Waters
- Level
- Warning
- Issued
- 9:34 a.m. HST, September 17, 2026
- Expires
- 10:30 a.m. HST, September 17, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- PHFO MA.W 0101
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SMWHFO The National Weather Service in Honolulu has issued a * Special Marine Warning for... Alenuihaha Channel... Big Island Leeward Waters... Big Island Windward Waters... * Until 1030 AM HST. * At 933 AM HST, strong thunderstorms were located along a line extending from 10 nm north of Upolu Point to 8 nm north of FAD Buoy HK. The strong thunderstorms were nearly stationary. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... FAD Buoy HK and Upolu Point.
What the agency told people to 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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.