Sunrise 5:49 AM   Sunset 6:44 PM Moonrise 1:19 AM   Moonset 12:40 PM

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PHZ123 Big Island Leeward Waters- 339 Pm Hst Wed May 1 2024
.small craft advisory in effect through Thursday afternoon - .
Tonight - West of the big island, west northwest winds 7 to 10 knots. NEar south point, east winds to 25 knots, backing to east northeast after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 6 seconds. Isolated showers. Thursday - West of the big island, winds variable less than 10 knots. NEar south point, east winds 20 to 25 knots, becoming to 25 knots in the afternoon. Seas 4 to 6 feet. Wave detail: east 5 feet at 6 seconds. Isolated showers. Thursday night - Winds variable less than 10 knots west of the big island - .east northeast to 25 knots near south point. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 7 seconds. Isolated showers. Friday - West of the big island, winds variable less than 10 knots, becoming west 7 to 10 knots in the afternoon. NEar south point, east winds to 25 knots. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 6 seconds. Isolated showers in the morning. Friday night - West of the big island, south southwest winds 7 to 10 knots, veering to west northwest after midnight. NEar south point, east winds 25 to 30 knots. Seas 5 to 7 feet. Wave detail: east northeast 7 feet at 7 seconds. Isolated showers. Saturday - West of the big island, winds variable less than 10 knots, becoming west northwest 7 to 10 knots in the afternoon. NEar south point, east winds to 25 knots. Seas 5 to 7 feet. Wave detail: east 7 feet at 7 seconds. Isolated showers. Saturday night - West of the big island, south winds 7 to 10 knots in the evening, becoming variable less than 10 knots. NEar south point, east winds to 25 knots. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 7 seconds. Scattered showers. Sunday - West of the big island, winds variable less than 10 knots, becoming west 7 to 10 knots in the afternoon and evening, then becoming variable less than 10 knots after midnight. NEar south point, east winds 20 to 25 knots. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 7 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day. Monday - West of the big island, winds variable less than 10 knots, becoming west 7 to 10 knots in the afternoon, then backing to south in the evening, veering to north northwest after midnight. NEar south point, east winds 20 to 25 knots. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 6 seconds. Scattered showers in the morning. Isolated showers.

PHZ100 339 Pm Hst Wed May 1 2024
Synopsis for hawaiian coastal waters - High pressure far northeast of the state will shift south and dissipate even as a second high builds to the north. Moderate to locally strong trade winds will further strengthen on Friday and persist into Monday.

FXHW60 PHFO 020157 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 357 PM HST Wed May 1 2024

SYNOPSIS
Trade winds will strengthen on Thursday and become breezy Friday through the weekend. Rainfall will favor typical windward slopes, with an increase in showers expected this weekend through the first half of next week as a disturbance aloft passes overhead

DISCUSSION
High pressure centered far northeast of the state and a trough just northwest of Kauai will maintain light to moderate east to east-southeast winds over the western half and moderate easterly trades over the eastern half of the state through tonight. For tonight, we should see fairly dry conditions with a few scattered over windward areas and isolated showers possible over leeward areas.

As the trough weakens and shifts westward on Thursday, high pressure will build over the region and trade winds will strengthen. By Friday, breezy trades are expected across the state with locally strong trades over windier areas of Maui County and the Big Island. As the trades strengthen, showers will also increase primarily over windward and mauka areas. An upper level low approaching the state from the west this weekend, should help enhance the showers and will allow for brief downpours this weekend into early next week. Although details are still uncertain, windward and mauka areas could be come quite showery through early next week, especially the western end of the state where the best instability exists.



AVIATION
Moderate E to ESE winds will gradually strengthen through Thursday, with random clusters of showery low clouds delivering brief periods of isolated MVFR VIS/CIG in SHRA, mainly windward.
VFR conditions will prevail leeward, except for isolated areas of MVFR VIS/CIG over leeward Big Island in the afternoon and evening.

No AIRMETs are posted, but increased low-level turbulence to the lee of the terrain is expected by Thursday, likely prompting the issuance of AIRMET Tango.

MARINE
High pressure far northeast of the state will shift south and dissipate even as a second high builds to the north. Moderate to locally strong trade winds will strengthen to fresh to locally strong on Friday and persist into Monday. A Small Craft Advisory (SCA) remains in effect for typical windy waters around the Big Island and Maui through tomorrow night. This advisory will likely be expanded to include additional waters as winds increase.

Along north and west facing shores, tiny surf will persist through Friday. On Friday night, a small long-period swell will fill in, triggering a small bump in the surf on Saturday. Lastly, a storm low currently near the Kuril Islands will send another small, long period northwest swell late Sunday that will maintain small surf along north and west facing shores into early next week.

For south facing shores, small background south swells will continue through Friday. A new small, long period swell should fill in over the weekend providing a boost in surf along south facing shores through early next week.

Along east facing shores, small, choppy surf will become rough and choppy on Thursday in response to the strengthening trade winds. Conditions are expected to persist through the weekend and into early next week.



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

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Kailua Kona
Click for Map
Wed -- 01:19 AM HST     Moonrise
Wed -- 01:27 AM HST     Last Quarter
Wed -- 05:42 AM HST     -0.06 feet Low Tide
Wed -- 05:54 AM HST     Sunrise
Wed -- 11:18 AM HST     0.63 feet High Tide
Wed -- 12:40 PM HST     Moonset
Wed -- 03:25 PM HST     0.29 feet Low Tide
Wed -- 06:47 PM HST     Sunset
Wed -- 10:40 PM HST     1.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kailua Kona, Big Island, Hawaii (2), Tide feet

Napoopoo
Click for Map
Wed -- 01:18 AM HST     Moonrise
Wed -- 01:27 AM HST     Last Quarter
Wed -- 05:52 AM HST     -0.06 feet Low Tide
Wed -- 05:54 AM HST     Sunrise
Wed -- 11:28 AM HST     0.63 feet High Tide
Wed -- 12:40 PM HST     Moonset
Wed -- 03:35 PM HST     0.29 feet Low Tide
Wed -- 06:46 PM HST     Sunset
Wed -- 10:50 PM HST     1.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Napoopoo, Kealakekua Bay, Hawaii Island, Hawaii, Tide feet

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