Sunrise 6:07 AM   Sunset 6:54 PM Moonrise 3:50 PM   Moonset 3:58 AM

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PHZ111 Kauai Windward Waters- 328 Am Hst Fri Apr 19 2024
Today - East northeast winds to 15 knots. Seas 5 to 6 feet. Wave detail: east 4 feet at 6 seconds and north 4 feet at 9 seconds. Isolated showers. Tonight - East northeast winds to 15 knots. Seas to 5 feet. Wave detail: east 4 feet at 6 seconds and north 3 feet at 9 seconds. Isolated showers. Saturday - East winds 10 to 15 knots. Seas to 5 feet. Wave detail: east 4 feet at 6 seconds and north 3 feet at 8 seconds. Saturday night - East northeast winds 10 to 15 knots. Seas 5 to 6 feet. Wave detail: east 4 feet at 5 seconds and north 4 feet at 13 seconds. Sunday - East northeast winds to 10 knots, rising to 15 knots in the afternoon. Seas 5 to 6 feet. Wave detail: north 5 feet at 12 seconds and east 3 feet at 5 seconds. Sunday night - East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave detail: east 5 feet at 6 seconds and north 5 feet at 12 seconds. Isolated showers after midnight. Monday - East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave detail: east 5 feet at 7 seconds and north 4 feet at 12 seconds. Isolated showers after midnight. Tuesday - East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave detail: east 7 feet at 7 seconds and north 3 feet at 10 seconds. Isolated showers through the day.

PHZ100 328 Am Hst Fri Apr 19 2024
Synopsis for hawaiian coastal waters - A series of surface highs will build and pass north of the waters through early next week.

FXHW60 PHFO 191359 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 359 AM HST Fri Apr 19 2024

SYNOPSIS
A breezy trades will briefly weaken over the weekend, before increasing again early in the new week. Mostly dry conditions will prevail, with clouds and brief showers favoring windward and mauka locations, mainly during the overnight through early morning hours, as areas of moisture move through periodically.



DISCUSSION
No changes to the forecast this morning, however the Big Island summit winds are near Wind Advisory criteria so keeping a close eye on the winds there. Winds will hover near the advisory criteria into Saturday before trending downward.

High pressure far to the north-northwest of the state will drift to the east, with a ridge of high pressure remaining north of the region. This will maintain a trade wind pattern into the middle to end of next week.

Expect a return to a drier trade wind pattern to become established within the next 24 hours or so. Mid and upper level ridging will help to maintain that drier trade wind pattern into next week. Clouds and showers will be riding in on the trade wind flow, and remain focused over the typical windward sides of the islands. Those showers will be concentrated during the overnight and morning hours. Clouds and limited showers are also expected over the west slopes of the Big Island mainly during the afternoon and evening hours.

The breezy trades will hold today, and then ease into the light to moderate range over the weekend as the ridge to the north weakens to a low passing far to the north. The southern extent of a mid- to upper- level trough associated with this system will pass near the islands to the north late today and into the weekend, which could support a slight increase in windward shower coverage during the overnight/early mornings. Rising upper heights along with a strengthening surface ridge to the north will support dry conditions prevailing early next week with breezy easterly trades returning.



AVIATION
Moderate trade winds will remain in place today then will weaken gradually later this evening into the weekend. A band of low clouds and showers will continue bringing MVFR clouds and showers to the windward portions of the islands with improving conditions expected by mid morning. Trade wind showers could then increase again by this evening.

AIRMET Sierra for tempo mountain obscuration remains in effect for Kauai, Oahu, Molokai, and Maui and will likely be cancelled later this morning as showers are expected to decrease in coverage.

MARINE
A series of surface highs will build and pass north of the state through early next week. Moderate to locally strong trades will persist today, then weaken slightly over the weekend. A Small Craft Advisory (SCA) is in effect until 6 PM HST today for the typical windy zones around Maui County and the Big Island. Trades will become fresh to locally strong again early next week.

Moderate surf along south facing shores will decline slightly today. 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 early Sunday. Surf along east facing shores will remain small but can expect a minor boost as winds pick up Monday.



HFO WATCHES/WARNINGS/ADVISORIES
Small Craft Advisory until 6 PM HST this evening for Maalaea Bay- Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters.

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Hanalei Bay
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Fri -- 03:58 AM HST     Moonset
Fri -- 06:14 AM HST     Sunrise
Fri -- 06:17 AM HST     -0.04 feet Low Tide
Fri -- 12:47 PM HST     1.12 feet High Tide
Fri -- 03:49 PM HST     Moonrise
Fri -- 06:05 PM HST     0.24 feet Low Tide
Fri -- 07:00 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Hanalei Bay, Kauai Island, Hawaii, Tide feet

Hanamaulu Bay
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Fri -- 01:05 AM HST     1.34 feet High Tide
Fri -- 03:57 AM HST     Moonset
Fri -- 06:13 AM HST     Sunrise
Fri -- 07:44 AM HST     -0.04 feet Low Tide
Fri -- 01:58 PM HST     1.02 feet High Tide
Fri -- 03:49 PM HST     Moonrise
Fri -- 06:59 PM HST     Sunset
Fri -- 07:31 PM HST     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Hanamaulu Bay, Kauai Island, Hawaii, Tide feet

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