Hawaiian Coastal Waters - (Oahu Leeward Waters/PHZ115) - Current Watches, Warnings and Advisories for Hawaiian Coastal Waters Issued by the National Weather Service
Small Craft Advisory for Oahu Leeward Waters until 2025-07-09T16:00:00

WHHW70 PHFO 091336 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 336 AM HST Wed Jul 9 2025 PHZ110>118-122-091600- /O.CON.PHFO.SC.Y.0030.000000T0000Z-250709T1600Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters- Kaiwi Channel-Maui County Windward Waters- Maui County Leeward Waters-Big Island Windward Waters- 336 AM HST Wed Jul 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST EARLY THIS MORNING... * WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 5 to 7 feet. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Maui County Leeward Waters and Big Island Windward Waters. * WHEN...Until 6 AM HST early this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$

TONIGHT
East northeast winds 15 to 20 knots, becoming east 10 to 15 knots after midnight. Seas 3 to 4 feet. Wave detail: east southeast 4 feet at 6 seconds. Isolated showers.
SUNDAY
East winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 6 seconds.
SUNDAY NIGHT
East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave detail: east southeast 4 feet at 6 seconds.
MONDAY
East northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 6 seconds.
MONDAY NIGHT
East northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 3 feet at 5 seconds. Isolated showers after midnight.
TUESDAY
East northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 6 seconds. Isolated showers.
TUESDAY NIGHT
East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave detail: east southeast 4 feet at 6 seconds.
WEDNESDAY
East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east 5 feet at 6 seconds.
THURSDAY
East northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: east 5 feet at 6 seconds.

Surf Advisory and Warning Criteria
Location/shoreline Advisory Warning
North-Facing Shores- 15 Feet faces (8' Local) 25 Feet faces (15' local)
West-Facing Shores - 12 Feet (7' local) 20 Feet (12' local)
West-Facing- Big Is.- 8 Feet (4'+ local) 12 Feet (7' local)
South-Facing Shores- 8 Feet (4'+ local) 15 Feet (8' local)
East-Facing Shores- 8 Feet (4'+ local) 15 Feet (8' local)