Sunrise 6:00 AM   Sunset 6:58 PM Moonrise 12:00 AM   Moonset 10:44 AM

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PHZ113 Kauai Channel- 324 Pm Hst Mon Apr 29 2024
Tonight - East winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 6 seconds. Isolated showers this evening, then scattered showers after midnight. Tuesday - East winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon. Seas 4 to 5 feet. Wave detail: east 4 feet at 6 seconds. Scattered showers, mainly in the morning. Tuesday night - East winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 7 seconds. Isolated showers. Wednesday - East winds 10 to 15 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 6 seconds. Isolated showers. Wednesday night - East winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Thursday - East winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Thursday night - East northeast winds to 20 knots. Seas 5 to 6 feet. Wave detail: east 6 feet at 7 seconds. Isolated showers. Friday - East northeast winds to 20 knots. Seas 5 to 7 feet. Wave detail: east 6 feet at 7 seconds. Isolated showers. Saturday - East northeast winds to 20 knots. Seas 5 to 8 feet. Wave detail: east northeast 6 feet at 7 seconds. Isolated showers.

PHZ100 324 Pm Hst Mon Apr 29 2024
Synopsis for hawaiian coastal waters - High pressure far northeast of the state and a weak front about 250 nm northwest of kauai will maintain moderate to fresh east to southeast winds into Wednesday. Fresh to locally strong trade winds will return late Wednesday and Thursday as high pressure rebuilds north of the islands.

FXHW60 PHFO 300155 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 355 PM HST Mon Apr 29 2024

SYNOPSIS
Moderate trades will prevail over the eastern islands through the first half of the work week, while lighter trades over the western islands allow for some leeward land and sea breezes.
Relatively dry weather will persist through Tuesday, with a few showers affecting windward areas overnight into the early morning hours and developing over interior and leeward areas each afternoon. The trades will rebound on Wednesday, bringing a transition over to more typical trade wind weather. The trades will become breezy Thursday through next weekend, and the trade wind showers may increase as well due to a disturbance aloft moving over the islands over the weekend.

DISCUSSION
High pressure far northeast of the state and a weak low pressure system north-northwest of the state will maintain a light pressure gradient over the Hawaiian Islands over the next few days. Trade winds will be light enough for day time sea breezes, which should lead to afternoon clouds over leeward and interior areas. Rainfall amounts should remain light due to limited moisture. Windward areas should continue to see a few light passing showers from time to time.

The trades should begin to strengthen on Wednesday and by Thursday, we should see breezy trades across the state. For Thursday and Friday, we should see our typical breezy trade wind weather with scattered showers over windward and mountain areas and isolated showers over leeward areas.

Over the weekend, latest model guidance is showing an upper level low approaching the state from the west, which will lead to unstable conditions. At the surface, we should continue to see high pressure centered far north of the state generating breezy trade winds. With breezy trades at the surface and unstable conditions aloft, we will likely see enhanced trade wind showers.
The details are still very uncertain due to models having a difficult time handling the evolution of upper level lows.
Nonetheless, we will likely see increased shower activity early next week.

AVIATION
Light to moderate ESE winds with localized sea and land breezes will continue through tomorrow. A relatively dry airmass will keep clouds and showers limited with the exception of Kauai where lingering moisture remains. Land breezes will likely clear out clouds over the islands at night before returning again tomorrow afternoon with the sea breezes. Overall VFR conditions are expected to prevail.

High clouds will continue to stream across the Hawaiian Islands through tonight as an upper level jet streak moves from west to east. This jet streak will slowly move south. An AIRMET Tango for tempo moderate turbulence is in effect between FL300 and FL380 and could continue through the evening before weakening and moving south tomorrow morning.

MARINE
Moderate to fresh east to east-southeast trade winds will persist during the next couple of days as high pressure remains far northeast of the area and a stalled front sits about 250 nm northwest of Kauai. ASCAT passes from earlier today revealed borderline conditions in the Alenuihaha Channel and south of the Big Island, but with winds expected to ease slightly tonight, we have held off on reissuing a Small Craft Advisory (SCA). High pressure will build far north of the state late Wednesday and Thursday, causing trade winds to build into the weekend. A SCA will initially be issued for the typically windy waters around the Big Island and Maui and may be expanded to additional waters Friday or Saturday.

Tiny surf will persist along north facing shores through Friday, with a small pulse of northwest swell swell expected this weekend. A small long period south-southwest swell will fill in tonight, peak Tuesday, and ease Wednesday, followed small background level surf on south shores for the rest of the week.
Choppy surf along east facing shores will decline over the next couple of days, then gradually increase as trade winds rebuild.
Rough east shore surf will likely rise above seasonal average Friday into the weekend.



HFO WATCHES/WARNINGS/ADVISORIES
None.

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Port Allen
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Mon -- 04:16 AM HST     0.10 feet Low Tide
Mon -- 06:07 AM HST     Sunrise
Mon -- 07:42 AM HST     0.20 feet High Tide
Mon -- 10:44 AM HST     Moonset
Mon -- 12:06 PM HST     0.06 feet Low Tide
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Port Allen, Hanapepe Bay, Kauai Island, Hawaii, Tide feet

Nawiliwili
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Mon -- 04:13 AM HST     0.12 feet Low Tide
Mon -- 06:06 AM HST     Sunrise
Mon -- 07:51 AM HST     0.14 feet High Tide
Mon -- 10:43 AM HST     Moonset
Mon -- 12:03 PM HST     0.07 feet Low Tide
Mon -- 07:03 PM HST     Sunset
Mon -- 08:37 PM HST     1.74 feet High Tide
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Nawiliwili, Hawaii (2), Tide feet

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