PHZ100-100215-
318 AM HST Sun Aug 9 2026
.Synopsis for Hawaiian coastal waters...
Fresh to locally strong trades will persist through much of the
week as surface high pressure remains anchored far northeast of
the state. A tropical cyclone is likely to develop southeast of
the islands over the next few days impacting the local winds,
seas, and weather as early as Thursday.
$$
PHZ122-100215- Big Island Windward Waters- 318 AM HST Sun Aug 9 2026 TODAY East winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North northeast 4 feet at 5 seconds and south southwest 3 feet at 13 seconds. Scattered showers. TONIGHT East winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North northeast 4 feet at 4 seconds and south southwest 3 feet at 16 seconds. Scattered showers. MONDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: North northeast 4 feet at 5 seconds and south southwest 3 feet at 15 seconds. Isolated showers. MONDAY NIGHT East northeast winds to 15 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 4 seconds. Isolated showers. TUESDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 5 seconds. Isolated showers in the morning. TUESDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 4 seconds. Isolated showers. WEDNESDAY East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: South southwest 5 feet at 18 seconds and north northeast 4 feet at 5 seconds. Isolated showers through the night, then scattered showers through the day. THURSDAY Northeast winds 15 to 20 knots, rising to 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: North northeast 5 feet at 6 seconds, south southwest 4 feet at 15 seconds and east southeast 3 feet at 9 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day. $$
PHZ122-100215- Big Island Windward Waters- 318 AM HST Sun Aug 9 2026 TODAY East winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North northeast 4 feet at 5 seconds and south southwest 3 feet at 13 seconds. Scattered showers. TONIGHT East winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: North northeast 4 feet at 4 seconds and south southwest 3 feet at 16 seconds. Scattered showers. MONDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: North northeast 4 feet at 5 seconds and south southwest 3 feet at 15 seconds. Isolated showers. MONDAY NIGHT East northeast winds to 15 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 4 seconds. Isolated showers. TUESDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 5 seconds. Isolated showers in the morning. TUESDAY NIGHT East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: South southwest 4 feet at 14 seconds and north northeast 3 feet at 4 seconds. Isolated showers. WEDNESDAY East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: South southwest 5 feet at 18 seconds and north northeast 4 feet at 5 seconds. Isolated showers through the night, then scattered showers through the day. THURSDAY Northeast winds 15 to 20 knots, rising to 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: North northeast 5 feet at 6 seconds, south southwest 4 feet at 15 seconds and east southeast 3 feet at 9 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day. $$