Sunrise 6:02 AM   Sunset 6:57 PM Moonrise 10:00 PM   Moonset 7:55 AM

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PHZ111 Kauai Windward Waters- 958 Pm Hst Thu Apr 25 2024
.small craft advisory in effect through early Friday morning - .
Rest of tonight - East winds 20 to 25 knots, easing to 15 to 20 knots. Seas 8 to 9 feet. Wave detail: east 7 feet at 8 seconds and northwest 3 feet at 12 seconds. Isolated showers late this evening, then scattered showers. Friday - East winds 15 to 20 knots. Seas 7 to 8 feet. Wave detail: east 7 feet at 8 seconds and northwest 3 feet at 11 seconds. Scattered showers, mainly in the morning. Friday night - East winds to 20 knots. Seas 7 to 8 feet. Wave detail: east 7 feet at 7 seconds and northwest 3 feet at 14 seconds. Scattered showers. Saturday - East winds 15 to 20 knots. Seas to 7 feet. Wave detail: east 6 feet at 7 seconds and northwest 3 feet at 13 seconds. Scattered showers, mainly in the morning. Saturday night - East winds to 15 knots. Seas 6 to 7 feet. Wave detail: east 6 feet at 7 seconds and northwest 3 feet at 12 seconds. Isolated showers in the evening, then scattered showers after midnight. Sunday - East winds to 15 knots. Seas to 6 feet. Wave detail: east 5 feet at 7 seconds and northwest 3 feet at 11 seconds. Scattered showers, mainly in the morning. Sunday night - East winds to 15 knots. Seas 5 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Monday - East winds to 15 knots. Seas 5 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Tuesday - East winds to 15 knots. Seas 5 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers, then scattered showers after midnight.

PHZ100 958 Pm Hst Thu Apr 25 2024
Synopsis for hawaiian coastal waters - High pressure northeast of the state will drift eastward as a new low develops to the northwest. Strong trade winds will gradually ease over the weekend, then hold steady through early next week.

FXHW60 PHFO 260700 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 900 PM HST Thu Apr 25 2024

SYNOPSIS

Strong trade winds will gradual decrease and veer toward the east-southeast through early next week. Several plumes of moisture will produce passing showers across windward and mountain areas through Saturday. A drier weather pattern is expected Sunday into early next week with light to moderate east to east southeast winds.
Winds should be light enough for sea breezes to develop during the day and land breezes at night, especially early next week.

DISCUSSION

A 1031 mb high far north of the state is currently producing strong trade winds across the state this evening. Latest satellite and radar imagery shows mostly dry conditions across the state with some scattered showers over windward areas and the Kona slopes of the Big Island. Looking upstream of the state, there is a plume of moisture upstream of Maui, which will likely bring an increase of scattered showers rest of tonight across windward areas. Some of these showers may spill over to leeward locations of the smaller islands given the inversion heights are around 6 kft from the afternoon soundings. Another plume of moisture looks to arrive sometime late Friday into Saturday.
Overall an increase of showers is expected through Saturday, primarily over windward areas with some spillage to leeward locales of the smaller islands. Rainfall amounts should remain light to moderate, due to stable conditions aloft.

An area of low pressure is expected to develop along a stalled front roughly 1000 miles northwest of the state Friday and Saturday before shifting northeast. This set up will shift winds slightly to the east- southeast on Saturday for the western half of the state. This set up could allow for a hybrid wind pattern over the weekend with land/sea breezes developing over leeward areas of the smaller islands and the easterly component of the winds still producing a moderate to locally breezy trade shower pattern over windward areas, especially for the eastern half of the state.

A trough extending from the low will inch roughly 500 miles northwest of the state early next week as the parent tracks far north of the state. This will further ease winds locally allowing for a more dominate land/sea breezes pattern. Sea breezes during the day time should lead to afternoon clouds each afternoon over mountain and interior areas. The surface trough and associated upper level trough feature will provide a conveyor belt, drawing a tongue of near to slightly above normal moisture levels over the state. These features could allow for deep clouds to develop each afternoon with the seas breezes. However rainfall totals are not expected to be significant. Expect clouds and chances of showers to diminish each night with the land breeze.

AVIATION
Breezy to locally windy trade winds will continue through Friday.
Clouds and showers will favor windward and mauka areas, with isolated showers occasionally spilling over to leeward areas...bringing periodic MVFR conditions. Cloud cover and shower activity will be greatest overnight into the morning hours.
Otherwise, VFR conditions will generally prevail.

AIRMET Tango is in effect for moderate low-level turb downwind of the terrain for all islands. These conditions are expected to improve sometime tonight heading into Friday.

MARINE

A 1031 mb surface high, centered around 900 nm northeast of the state, will slowly drift eastward over the next several days.
Meanwhile, a new low is forecast to develop about 900 nm northwest of Hawaii on Friday. Strong east-northeast trade winds may approach gale force through channeled areas tonight, but should gradually weaken and shift to the east-southeast by Saturday morning in response to the approaching low.

A Small Craft Advisory (SCA) continues for all Hawaiian coastal waters through Friday morning and has been extended for windward Oahu waters and eastward through Friday afternoon. The advisory may need to be extend into Saturday for some of the more typical windier locations around the Big Island and Maui County.

Surf heights will remain below advisory thresholds for all shores through the forecast period. Multiple small northwest swells are expected tonight through Saturday night. Expect these swells to produce small surf along north and northwest facing shores. A small background southerly swell will lead to small surf along south facing beaches through the forecast period. Strong trade winds will continue to produce choppy, rough surf along east facing beaches through tomorrow afternoon. Smaller, smoother surf is expected for the weekend as trade winds ease.

HFO WATCHES/WARNINGS/ADVISORIES
Small Craft Advisory until 6 AM HST Friday for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-Kauai Channel- Oahu Leeward Waters.

Small Craft Advisory until 6 PM HST Friday for Oahu Windward Waters-Kaiwi Channel-Maui County Windward Waters-Maui County Leeward Waters-Maalaea Bay-Pailolo Channel-Alenuihaha Channel- Big Island Windward Waters-Big Island Leeward Waters-Big Island Southeast Waters.

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Hanamaulu Bay
Click for Map
Fri -- 12:23 AM HST     0.22 feet Low Tide
Fri -- 04:36 AM HST     0.43 feet High Tide
Fri -- 06:08 AM HST     Sunrise
Fri -- 07:55 AM HST     Moonset
Fri -- 10:06 AM HST     -0.16 feet Low Tide
Fri -- 05:54 PM HST     1.81 feet High Tide
Fri -- 07:01 PM HST     Sunset
Fri -- 10:00 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Hanamaulu Bay, Kauai Island, Hawaii, Tide feet

Hanalei Bay
Click for Map
Fri -- 03:25 AM HST     0.53 feet High Tide
Fri -- 06:08 AM HST     Sunrise
Fri -- 07:55 AM HST     Moonset
Fri -- 08:40 AM HST     -0.16 feet Low Tide
Fri -- 04:43 PM HST     1.91 feet High Tide
Fri -- 07:02 PM HST     Sunset
Fri -- 10:01 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Hanalei Bay, Kauai Island, Hawaii, Tide feet

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