Sunrise 6:07 AM   Sunset 6:54 PM Moonrise 3:51 PM   Moonset 3:58 AM

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PHZ113 Kauai Channel- 922 Pm Hst Fri Apr 19 2024
Rest of tonight - East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave detail: east 5 feet at 6 seconds and north 3 feet at 9 seconds. Isolated showers. Saturday - East northeast winds to 15 knots. Seas to 5 feet. Wave detail: east northeast 4 feet at 5 seconds and north 3 feet at 8 seconds. Saturday night - East northeast winds to 15 knots. Seas 4 to 6 feet. Wave detail: east 4 feet at 5 seconds and north 4 feet at 13 seconds. Sunday - Northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: north 5 feet at 12 seconds and east northeast 4 feet at 5 seconds. Sunday night - East northeast winds to 20 knots. Seas 5 to 7 feet. Wave detail: east northeast 5 feet at 6 seconds and north 5 feet at 12 seconds. Isolated showers after midnight. Monday - East northeast winds to 20 knots. Seas 5 to 7 feet. Wave detail: east northeast 5 feet at 6 seconds and north 5 feet at 12 seconds. Monday night - East northeast winds to 20 knots. Seas 6 to 7 feet. Wave detail: east northeast 6 feet at 6 seconds and north 4 feet at 11 seconds. Tuesday - East northeast winds to 20 knots. Seas 5 to 7 feet. Wave detail: east northeast 7 feet at 7 seconds and north 3 feet at 10 seconds. Isolated showers after midnight. Wednesday - East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave detail: east northeast 7 feet at 7 seconds. Isolated showers in the morning. Isolated showers after midnight.

PHZ100 922 Pm Hst Fri Apr 19 2024
Synopsis for hawaiian coastal waters - The trades will decline slightly as a high pressure ridge north of the state weakens through the weekend. The ridge will strengthen early next week.

FXHW60 PHFO 200647 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 847 PM HST Fri Apr 19 2024

SYNOPSIS
Moderate trade winds are forecast through the weekend with enhanced showers decreasing from west to east through the day on Saturday. Dry trade wind weather will continue on Sunday with wind speeds starting to pick up slightly by Sunday night as a high pressure system builds north of the islands. Brief periods of showers will pass through the islands through early next week in a moderate to breezy trade wind pattern. Wednesday will be on the wet side for most islands, especially in the overnight to early morning hours.

DISCUSSION
Strong winds aloft enhanced by a passing upper level trough will continue to support High Wind Warning conditions for the highest Big Island summits of Mauna Kea and Mauna Loa through Saturday afternoon. Winds at summit level will decrease quickly by Saturday evening as the upper trough passes east of the Big Island.

Satellite imagery this evening shows a sharp upper trough approaching the islands from the northwest. This upper trough will help to enhance trade wind showers through Saturday morning.
An upper ridge will build in behind this trough as it passes from west to east across the state on Saturday, increasing stability and decreasing cloud and shower coverage. Sunday will be the most favorable weather day of the weekend for outdoor activities.

From Sunday night into Tuesday, a weak high pressure system will build just north of the Hawaiian islands. Fair weather remains in the forecast for most areas with a slight increase in our trade winds from moderate into the moderate to breezy range should be expected. One wrinkle in this forecast, no surprise to the locals, is the Hilo side of the Big Island and portions of East Maui will continue to see periods of enhanced showers.

From Tuesday night into Thursday morning, a band of unstable clouds will move from northeast to southwest across all islands.
Expect increasing shower trends, favoring windward and mountain areas especially in the overnight to early morning hours.

Thursday onward, typical trade wind weather will continue for the rest of the week with brief windward and mountain showers possible.

AVIATION
Light to moderate trade winds will persist through forty-eight hours and beyond. Bands of low clouds and light showers off the Pacific will impact mainly windward slopes and coasts. Isolated spillover showers are likely over leeward slopes of the smaller islands, especially in the late night and morning hours.

AIRMET Sierra for mountain obscuration is currently in effect for windward portions of all islands. Conditions are expected to improve shortly after sunrise.

MARINE
High pressure building in from the north-northwest will drift east and keep trade winds moderate to fresh through the weekend. The ridge of high pressure should rebuild early next week, which should produce fresh to locally strong trade winds once again.

The current south swell will decline into the weekend. A series of small, medium period swells will persist through the weekend keeping south facing shores from going flat. Small, short- period north swell will continue into into the weekend. A larger moderate medium period north swell reinforcement will arrive late Saturday night. Surf along east facing shores will remain small but can expect a slight increase early next week as the trades strengthen.

HFO WATCHES/WARNINGS/ADVISORIES
High Wind Warning until 6 PM HST Saturday for Big Island Summits.

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Hanamaulu Bay
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Sat -- 01:37 AM HST     1.24 feet High Tide
Sat -- 04:27 AM HST     Moonset
Sat -- 06:12 AM HST     Sunrise
Sat -- 07:59 AM HST     -0.07 feet Low Tide
Sat -- 02:25 PM HST     1.21 feet High Tide
Sat -- 04:38 PM HST     Moonrise
Sat -- 06:59 PM HST     Sunset
Sat -- 08:18 PM HST     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Hanamaulu Bay, Kauai Island, Hawaii, Tide feet

Hanalei Bay
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Sat -- 12:26 AM HST     1.34 feet High Tide
Sat -- 04:28 AM HST     Moonset
Sat -- 06:13 AM HST     Sunrise
Sat -- 06:33 AM HST     -0.07 feet Low Tide
Sat -- 01:14 PM HST     1.31 feet High Tide
Sat -- 04:38 PM HST     Moonrise
Sat -- 06:52 PM HST     0.21 feet Low Tide
Sat -- 07:00 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Hanalei Bay, Kauai Island, Hawaii, Tide feet

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