PHZ100-211415-
326 PM HST Mon Apr 20 2026
.Synopsis for Hawaiian coastal waters...
Weak to locally moderate east southeasterly flow will prevail
through early Wednesday as a series of low pressure troughs pass
northwest and north of the islands. Moderate to fresh northeast
trade winds return late Wednesday and last into the weekend as
high pressure builds north of the state.
$$
PHZ111-211415- Kauai Windward Waters- 326 PM HST Mon Apr 20 2026 TONIGHT East southeast winds 10 to 15 knots, becoming 7 to 10 knots after midnight. Seas to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers. TUESDAY East southeast winds 7 to 10 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 7 seconds, north northeast 3 feet at 9 seconds and northwest 3 feet at 13 seconds. TUESDAY NIGHT East northeast winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 14 seconds, north northeast 4 feet at 15 seconds and east southeast 3 feet at 7 seconds. WEDNESDAY East northeast winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 13 seconds and north northeast 4 feet at 14 seconds. WEDNESDAY NIGHT East northeast winds to 10 knots, rising to 15 knots after midnight. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 12 seconds, north northeast 4 feet at 12 seconds and east southeast 3 feet at 7 seconds. THURSDAY East northeast winds to 15 knots. Seas 5 to 6 feet. Wave Detail: East southeast 4 feet at 5 seconds, north northeast 4 feet at 11 seconds and north northwest 3 feet at 16 seconds. THURSDAY NIGHT East northeast winds to 15 knots. Seas to 6 feet. Wave Detail: East southeast 4 feet at 6 seconds, north northeast 4 feet at 10 seconds and west northwest 3 feet at 15 seconds. FRIDAY East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East southeast 5 feet at 6 seconds, northeast 4 feet at 9 seconds and west northwest 3 feet at 12 seconds. Isolated showers after midnight. SATURDAY East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 7 seconds, north northwest 4 feet at 13 seconds and northeast 3 feet at 8 seconds. Isolated showers in the morning. Isolated showers after midnight. $$
PHZ111-211415- Kauai Windward Waters- 326 PM HST Mon Apr 20 2026 TONIGHT East southeast winds 10 to 15 knots, becoming 7 to 10 knots after midnight. Seas to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers. TUESDAY East southeast winds 7 to 10 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 7 seconds, north northeast 3 feet at 9 seconds and northwest 3 feet at 13 seconds. TUESDAY NIGHT East northeast winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 14 seconds, north northeast 4 feet at 15 seconds and east southeast 3 feet at 7 seconds. WEDNESDAY East northeast winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 13 seconds and north northeast 4 feet at 14 seconds. WEDNESDAY NIGHT East northeast winds to 10 knots, rising to 15 knots after midnight. Seas 5 to 6 feet. Wave Detail: North northwest 4 feet at 12 seconds, north northeast 4 feet at 12 seconds and east southeast 3 feet at 7 seconds. THURSDAY East northeast winds to 15 knots. Seas 5 to 6 feet. Wave Detail: East southeast 4 feet at 5 seconds, north northeast 4 feet at 11 seconds and north northwest 3 feet at 16 seconds. THURSDAY NIGHT East northeast winds to 15 knots. Seas to 6 feet. Wave Detail: East southeast 4 feet at 6 seconds, north northeast 4 feet at 10 seconds and west northwest 3 feet at 15 seconds. FRIDAY East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East southeast 5 feet at 6 seconds, northeast 4 feet at 9 seconds and west northwest 3 feet at 12 seconds. Isolated showers after midnight. SATURDAY East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 7 seconds, north northwest 4 feet at 13 seconds and northeast 3 feet at 8 seconds. Isolated showers in the morning. Isolated showers after midnight. $$