Impacts from Lowell to impact the islands through Tuesday

Lowell is expected to bring various impacts to all islands through Tuesday. High surf will continue through Monday night. Flooding will be possible Tuesday, and there is the possibility for some tornadoes/waterspouts through Monday night. Hurricane force winds are expected for Kauai and Niihau, with tropical storm force winds for Oahu, through Monday night. Read More >

Coastal Waters Forecast for Oahu Windward Waters (PHZ114) (Text-Only)
NWS Forecast for: Oahu Windward Waters (PHZ114)
Issued by: National Weather Service Honolulu, HI
Last Update: 1112 AM HST Mon Sep 7 2026




Rest Of Today: Tropical storm conditions possible. East winds 25 to 30 knots. Seas 12 to 16 feet. Wave detail: southeast 11 feet at 10 seconds, southwest 10 feet at 13 seconds and east 5 feet at 12 seconds. Frequent heavy showers with isolated thunderstorms.

Tonight: Tropical storm conditions expected. East southeast winds 30 to 35 knots, veering to southeast 25 to 35 knots after midnight. Gusts up to 50 knots. Seas 12 to 17 feet. Wave detail: south southwest 15 feet at 15 seconds, south southwest 7 feet at 11 seconds and east 5 feet at 11 seconds. Isolated thunderstorms in the evening. Frequent heavy showers.

Tuesday: Tropical storm conditions possible. South winds 20 to 25 knots, becoming south southwest 15 to 20 knots in the afternoon. Seas 9 to 12 feet, subsiding to 6 to 9 feet in the afternoon. Wave detail: south southwest 10 feet at 8 seconds, south southwest 5 feet at 14 seconds and east 4 feet at 13 seconds. Numerous showers.

Tuesday Night: South southwest winds 10 to 15 knots, backing to south 7 to 10 knots after midnight. Seas 5 to 7 feet. Wave detail: east southeast 4 feet at 5 seconds, south southwest 4 feet at 14 seconds and east 3 feet at 13 seconds. Scattered showers.

Wednesday: Southeast winds 7 to 10 knots, backing to east southeast 10 to 15 knots in the afternoon. Seas 4 to 6 feet. Wave detail: south southwest 4 feet at 14 seconds, east 3 feet at 5 seconds and east 3 feet at 13 seconds. Scattered showers.

Wednesday Night: East southeast winds to 15 knots. Seas 4 to 6 feet. Wave detail: east 4 feet at 6 seconds, east 3 feet at 12 seconds and south southwest 3 feet at 13 seconds. Scattered showers.

Thursday: East winds to 15 knots. Seas 4 to 6 feet. Wave detail: east southeast 4 feet at 5 seconds and east 3 feet at 11 seconds. Scattered showers.

Friday: East winds 10 to 15 knots. Seas 4 to 6 feet. Wave detail: east 3 feet at 5 seconds and east 3 feet at 11 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day.

winds and seas higher in and near tstms.







Zone Forecast: Oahu Windward Waters (PHZ114)

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