PHZ100-131415-
357 PM HST Wed Aug 12 2026
.Synopsis for Hawaiian coastal waters...
High pressure to the far northeast will slowly drift into a
position just north of the Hawaiian Islands into the weekend,
producing moderate to locally strong trade winds across the
region. The weather pattern will change significantly this
weekend as early as Friday and will continue to deteriorate over
the weekend. Tropical Storm Conditions will be possible across
all coastal waters this weekend, with the potential for Hurricane
conditions across select waters.
$$
PHZ114-131415- Oahu Windward Waters- 357 PM HST Wed Aug 12 2026 TONIGHT East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East southeast 5 feet at 7 seconds and south 4 feet at 16 seconds. Isolated showers. THURSDAY East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East southeast 5 feet at 7 seconds and south 5 feet at 15 seconds. Isolated showers. THURSDAY NIGHT East northeast winds to 20 knots. Seas 6 to 8 feet. Wave Detail: East southeast 6 feet at 7 seconds and south 5 feet at 15 seconds. Isolated showers. FRIDAY East northeast winds to 20 knots. Seas 7 to 10 feet. Wave Detail: East southeast 8 feet at 9 seconds and south 4 feet at 14 seconds. Isolated showers in the morning. FRIDAY NIGHT East northeast winds to 20 knots. Seas 9 to 12 feet. Wave Detail: East southeast 9 feet at 11 seconds and south 3 feet at 14 seconds. Isolated showers in the evening, then scattered showers after midnight. SATURDAY Tropical storm conditions possible. Scattered showers. SATURDAY NIGHT Tropical storm conditions possible. Heavy showers. SUNDAY Tropical storm conditions possible. Heavy showers likely through the night, then scattered showers through the day. MONDAY East winds 15 to 20 knots. Seas 6 to 9 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers through the night, then isolated showers through the day. $$
PHZ114-131415- Oahu Windward Waters- 357 PM HST Wed Aug 12 2026 TONIGHT East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East southeast 5 feet at 7 seconds and south 4 feet at 16 seconds. Isolated showers. THURSDAY East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East southeast 5 feet at 7 seconds and south 5 feet at 15 seconds. Isolated showers. THURSDAY NIGHT East northeast winds to 20 knots. Seas 6 to 8 feet. Wave Detail: East southeast 6 feet at 7 seconds and south 5 feet at 15 seconds. Isolated showers. FRIDAY East northeast winds to 20 knots. Seas 7 to 10 feet. Wave Detail: East southeast 8 feet at 9 seconds and south 4 feet at 14 seconds. Isolated showers in the morning. FRIDAY NIGHT East northeast winds to 20 knots. Seas 9 to 12 feet. Wave Detail: East southeast 9 feet at 11 seconds and south 3 feet at 14 seconds. Isolated showers in the evening, then scattered showers after midnight. SATURDAY Tropical storm conditions possible. Scattered showers. SATURDAY NIGHT Tropical storm conditions possible. Heavy showers. SUNDAY Tropical storm conditions possible. Heavy showers likely through the night, then scattered showers through the day. MONDAY East winds 15 to 20 knots. Seas 6 to 9 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers through the night, then isolated showers through the day. $$