Sunrise 6:09 AM   Sunset 6:52 PM Moonrise 1:10 PM   Moonset 2:04 AM

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PHZ116 Kaiwi Channel- 909 Am Hst Tue Apr 16 2024
Rest of today - North northwest winds 7 to 10 knots. Seas 5 to 7 feet. Wave detail: north northwest 7 feet at 12 seconds. Isolated showers. Tonight - North northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave detail: north northwest 7 feet at 12 seconds. Isolated showers. Wednesday - Northeast winds 10 to 15 knots. Seas 5 to 7 feet. Wave detail: north northwest 7 feet at 11 seconds and north northeast 3 feet at 4 seconds. Isolated showers. Wednesday night - Northeast winds to 15 knots. Seas 5 to 7 feet. Wave detail: north 6 feet at 10 seconds and northeast 4 feet at 5 seconds. Isolated showers. Thursday - Northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave detail: north 6 feet at 10 seconds and northeast 4 feet at 5 seconds. Isolated showers in the morning. Thursday night - East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave detail: north 5 feet at 10 seconds and northeast 4 feet at 5 seconds. Isolated showers. Friday - East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east northeast 4 feet at 5 seconds and north 4 feet at 9 seconds. Isolated showers in the morning. Isolated showers through the day. Saturday - East northeast winds to 15 knots. Seas 4 to 5 feet. Wave detail: northeast 4 feet at 5 seconds and north 4 feet at 13 seconds. Isolated showers in the morning. Isolated showers through the day.

PHZ100 909 Am Hst Tue Apr 16 2024
Synopsis for hawaiian coastal waters - Remnants of the old front near the big island will dissipate and drift southeast today. High pressure will build northwest of the islands the next couple of days.

FXHW60 PHFO 161952 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 952 AM HST Tue Apr 16 2024

SYNOPSIS
Mostly dry and pleasant conditions will prevail through the week as high pressure builds to the north. Light to moderate northerly winds will shift out of a more typical northeast trade wind direction Wednesday through the second half of the week. As the trades return, clouds and light showers will favor the typical windward and mauka locations overnight through the morning hours.

DISCUSSION
An area of low pressure centered north of the state will be moving northeast and further away from the state today. Moisture continues to linger near the Big Island with precipitable water values of 1.46 inches on the 12Z Hilo sounding compared to the 0.94 inches on the Lihue sounding. For rest of the day today, we should see scattered showers over the Big Island, especially during the afternoon along the slopes. For the rest of the state, light northerly winds this morning will likely be overtaken by the sea breezes which should lead to afternoon clouds and some light showers over leeward areas.

Over on the summits of the Big Island, a High Wind Warning is in effect due to subtropical jet moving through the area. The jet should be moving out the area soon and winds should steadily drop this afternoon.

Starting Wednesday, a ridge of high pressure will build north of the region and our typical trade winds will make its return.
Bands of moisture is expected to ride in with the trade winds and passing showers are expected over windward areas through rest of the week. A slight uptick in moisture is anticipated Wednesday night into Thursday, which could bring an increase of shower coverage across the state. Otherwise, fair trade wind weather is expected through the weekend with trades holding at moderate speeds.

AVIATION
A weak front near the Big Island will shift SE today, with light northerly flow filling in across the island chain. The winds will be light enough to allow for daytime sea breezes and overnight land breezes in many areas. VFR conditions are expected during the next 24 hours.

AIRMET Sierra remains in effect for mtn obsc across windward Big Island. Conds should improve by the afternoon.

AIRMET Tango remains in effect for moderate turbulence N through NE of the mountains on the Big Island. This AIRMET will likely be cancelled later this morning.

MARINE
Remnants of the old front near the Big Island will dissipate and drift southeast today. Light to moderate northwest to north winds have filled in behind the front except moderate south to southwest winds over the far east Big Island waters. Winds look to veer through the day with light northwest to north winds, before moderate to fresh northeast winds will fill in by late Wednesday through Friday.

Surf along north and west facing shores has filled in overnight as a mixed- period northwest swell continues to build at nearshore PacIOOS Waimea Buoy, bringing elevated surf to exposed shores. A Small Craft Advisory for Kauai waters for seas is in effect through 6 pm HST today. This swell will hold through the day then gradually diminish as it becomes increasingly north Wednesday.
Otherwise, a combination of southeast and southwest swells will support small to moderate surf along south facing shores the next couple of days. Surf along east facing shores will remain very small, then gradually trend up as the northeast trade winds increase later in the week.



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

Small Craft Advisory until 6 PM HST this evening for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters.

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Hanauma Bay
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Tue -- 02:03 AM HST     Moonset
Tue -- 06:10 AM HST     Sunrise
Tue -- 06:19 AM HST     0.04 feet Low Tide
Tue -- 11:45 AM HST     0.55 feet High Tide
Tue -- 01:09 PM HST     Moonrise
Tue -- 03:55 PM HST     0.37 feet Low Tide
Tue -- 06:50 PM HST     Sunset
Tue -- 11:02 PM HST     1.59 feet High Tide
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