546 FZHW70 PHFO 231359 MWSHFO Marine Weather Statement National Weather Service Honolulu HI 359 AM HST Mon Feb 23 2026 PHZ117-122-240300- Maui County Windward Waters-Big Island Windward Waters- 359 AM HST Mon Feb 23 2026 ...SURGES IN NORTH FACING HARBORS DEVELOPING THIS AFTERNOON... A north-northeast swell from 010 to 030 degrees will build today and peak tonight and Tuesday. The large swell will produce hazardous conditions and heavy surges in north facing harbors, mainly in Hilo and Kahului. Mariners using these harbors should exercise caution when entering or leaving port. $$