


Coastal Waters Forecast
Issued by NWS
Issued by NWS
108 FZHW51 PHFO 301914 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 913 AM HST Wed Jul 30 2025 .Synopsis for Hawaiian coastal waters... High pressure to the far north-northwest drifts southeastward and Hurricane Iona and Tropical Storm Kali passes several hundred miles south of the state. Additional Tropical Cyclone could develop far southeast of Hawaii in the next few days. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY THROUGH EARLY THURSDAY MORNING FOR KAUAI NORTHWEST WATERS...KAUAI LEEWARD WATERS...KAIWI CHANNEL...MAUI COUNTY WINDWARD WATERS...MAALAEA BAY...PAILOLO CHANNEL...ALENUIHAHA CHANNEL AND WATERS AROUND THE BIG ISLAND... .TODAY...East winds 15 to 20 knots to Kauai...east 25 to 30 knots elsewhere. Seas 8 to 11 feet. Wave Detail: East southeast 6 feet at 7 seconds, south southeast 4 feet at 10 seconds and south 4 feet at 15 seconds. Isolated showers. .TONIGHT...East winds 25 to 30 knots. Seas 8 to 11 feet. Wave Detail: East 6 feet at 7 seconds, south 4 feet at 19 seconds and southeast 3 feet at 9 seconds. Isolated showers. .THURSDAY...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. Wave Detail: East 6 feet at 7 seconds, south 4 feet at 17 seconds and southeast 3 feet at 9 seconds. Isolated showers. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. Wave Detail: East 7 feet at 7 seconds and south southwest 4 feet at 16 seconds. Isolated showers. .FRIDAY...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. Scattered showers. .FRIDAY NIGHT...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. Scattered showers. .SATURDAY...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. Isolated showers. .SUNDAY...East northeast winds 25 to 30 knots. Seas 7 to 10 feet, subsiding to 6 to 8 feet. Isolated showers. $$