Sunrise 5:53 AM   Sunset 6:52 PM Moonrise 1:26 AM   Moonset 12:43 PM

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PHZ118 Maui County Leeward Waters- 311 Am Hst Wed May 1 2024
Today - East winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east southeast 4 feet at 6 seconds. Isolated showers this morning. Tonight - East winds 15 to 20 knots, becoming east northeast 10 to 15 knots after midnight. Seas 3 to 5 feet. Wave detail: east southeast 4 feet at 6 seconds. Isolated showers. Thursday - East northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave detail: east southeast 4 feet at 6 seconds. Isolated showers. Thursday night - East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave detail: east southeast 5 feet at 7 seconds. Isolated showers. Friday - East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave detail: east southeast 5 feet at 7 seconds. Isolated showers. Friday night - East northeast winds 15 to 20 knots, rising to 20 to 25 knots after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Saturday - East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon and evening, then easing to 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers. Sunday - East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the evening, then easing to 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 7 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day.

PHZ100 311 Am Hst Wed May 1 2024
Synopsis for hawaiian coastal waters - High pressure far northeast of the state will shift south through the rest of the week and dissipate as another high pressure builds to the north. A weak trough northwest of the state will move farther northwest. In response, moderate to locally strong east- southeast winds become more more easterly Thursday, then strengthen to fresh to locally strong Friday through the weekend.

FXHW60 PHFO 011335 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 335 AM HST Wed May 1 2024

SYNOPSIS
Moderate east to east-southeasterly winds will gradually build today. Limited showers will remain focused over mainly windward areas, with afternoon clouds and a few showers developing over sheltered leeward terrain. Trade winds will strengthen on Thursday and become breezy and gusty Friday through the weekend. Rainfall will favor typical windward slopes, with an increase in showers possible late this weekend through the first half of next week as a disturbance aloft passes overhead.

DISCUSSION
Stable east to east-southeasterly trade wind flow remains over the islands early this morning as a weak trough northwest of the state bisects a 1021 mb high to the far northwest and a 1030 mb high to the distant northeast. Satellite imagery continues to show partly to mostly cloudy skies across the region, with radar showing a mix of isolated to scattered showers over mainly windward and mauka areas. Expect trade winds to gradually strengthen today as the trough to the northwest weakens further and high pressure starts to consolidate to the north. However, wind should remain weak enough this afternoon for local leeward sea breezes to develop allowing for some afternoon clouds and isolated showers over sheltered areas. However, with no organized areas of moisture upstream of the islands and mid-level ridging maintaining stable conditions expect rain totals to be limited today.

Guidance then shows the 1030 mb high settling to the northeast on Thursday, with trade winds becoming more easterly and continuing to strengthen. Breezy to locally windy trades are then expected to develop by Friday and continue through the upcoming weekend.
This will drive a typical trade wind pattern with clouds and showers favoring windward and mauka areas, especially during the overnight and early morning hours.

The main wrinkle to the forecast remains the evolution of the upper low currently to the distant northwest of the state.
Guidance shows this upper low slowly inching towards the state over the next several days then stalling to the west of Kauai over the weekend before moving over the state early next week.
This low should help to boost our trade wind showers late Sunday into early next week. Guidance also shows an outside chance for some isolated thunderstorms later this weekend into early next week, but confidence is low.

AVIATION
With a high to the northeast and a trough to the northwest winds will remain light to moderate east to east-southeast flow through Wednesday. Scattered SHRA with MVFR conditions expected windward and mauka locations. Some isolated SHRA and MVFR conditions may make it into leeward areas, but will be brief.

No AIRMETs are currently in effect.

MARINE
High pressure far northeast of the state will shift south through the rest of the week and dissipate as another high pressure builds to the north. A weak trough to the northwest of the state will shift far northwest of state. In response, moderate to locally strong east-southeast winds will shift out of the more typical easterly trades direction by Thursday, then strengthen to fresh to locally strong Friday and holding into early next week. A Small Craft Advisory (SCA) remains in effect for typical windy waters around the Big Island and Maui through Thursday. This advisory will likely be expanded to include additional waters Thursday and Friday.

Tiny surf will persist along north and west facing shores through Friday. A small, long period northwest swell is expected to fill in Friday night, peak Saturday, bringing small surf along north and west facing shores. 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. Small background south swells will continue through the week. A small, long period south swell may fill in over the weekend providing a boost in surf along south facing shores into early next week. Small, choppy surf along east facing shores will gradually become rough and choppy Thursday through the weekend as trades return.

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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Kaumalapau
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Wed -- 01:25 AM HST     Moonrise
Wed -- 01:27 AM HST     Last Quarter
Wed -- 05:57 AM HST     Sunrise
Wed -- 06:07 AM HST     -0.06 feet Low Tide
Wed -- 11:46 AM HST     0.73 feet High Tide
Wed -- 12:42 PM HST     Moonset
Wed -- 03:50 PM HST     0.29 feet Low Tide
Wed -- 06:52 PM HST     Sunset
Wed -- 11:08 PM HST     1.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kaumalapau, Lanai Island, Hawaii, Tide feet

Lahaina
Click for Map
Wed -- 01:24 AM HST     Moonrise
Wed -- 01:27 AM HST     Last Quarter
Wed -- 05:24 AM HST     0.04 feet Low Tide
Wed -- 05:55 AM HST     Sunrise
Wed -- 11:09 AM HST     0.73 feet High Tide
Wed -- 12:41 PM HST     Moonset
Wed -- 03:07 PM HST     0.39 feet Low Tide
Wed -- 06:51 PM HST     Sunset
Wed -- 10:31 PM HST     1.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Lahaina, Maui Island, Hawaii, Tide feet

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