Sunrise 6:02 AM   Sunset 6:55 PM Moonrise 8:53 PM   Moonset 7:06 AM

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PHZ116 Kaiwi Channel- 1000 Pm Hst Wed Apr 24 2024
.small craft advisory in effect through Thursday afternoon - .
Rest of tonight - East northeast winds 20 to 25 knots. Seas 8 to 9 feet. Wave detail: east northeast 9 feet at 7 seconds. Isolated showers late this evening, then scattered showers. Thursday - East northeast winds 25 to 30 knots. Seas 7 to 9 feet. Wave detail: east 8 feet at 7 seconds. Isolated showers in the morning. Thursday night - East northeast winds to 20 knots. Seas 5 to 8 feet. Wave detail: east northeast 8 feet at 7 seconds. Isolated showers. Friday - East winds to 20 knots. Seas 5 to 8 feet. Wave detail: east northeast 8 feet at 7 seconds and north northwest 3 feet at 15 seconds. Isolated showers. Friday night - East winds 15 to 20 knots. Seas 5 to 8 feet. Wave detail: east northeast 7 feet at 7 seconds and north northwest 3 feet at 14 seconds. Isolated showers. Saturday - East winds 15 to 20 knots. Seas 5 to 7 feet. Wave detail: east northeast 6 feet at 7 seconds and north northwest 3 feet at 13 seconds. Isolated showers. Saturday night - East winds 15 to 20 knots. Seas 5 to 7 feet. Wave detail: east 5 feet at 7 seconds and north northwest 3 feet at 12 seconds. Isolated showers. Sunday - East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east 5 feet at 6 seconds. Isolated showers. Monday - East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave detail: east 5 feet at 7 seconds. Isolated showers.

PHZ100 1000 Pm Hst Wed Apr 24 2024
Synopsis for hawaiian coastal waters - High pressure northeast of the state will help drive strong to near gale force trades through Thursday. The high is forecast to weaken Friday through the weekend, then holding into early next week as an area of low pressure develops northwest of the area.

FXHW60 PHFO 250639 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 839 PM HST Wed Apr 24 2024

SYNOPSIS
Breezy to locally windy trade winds will continue through Friday.
Expect enhanced trade wind showers through Thursday morning as a band of unsettled clouds rides through the islands on the trade winds. These showers will mainly form over windward and mountain slopes, favoring the overnight to early morning hours. Trade wind speeds will decrease slightly this weekend as high pressure weakens to the north and a low pressure system deepens far northwest of the island chain.

DISCUSSION
Satellite imagery this evening shows a band of unsettled showers riding into the islands on the trade winds. Expect enhanced showers to last through Thursday morning with showers favoring windward and mountain slopes. Radar imagery tonight shows scattered to numerous showers moving through the region. These extra showers should ease up by mid Thursday morning.

Wind speeds will continue at moderate to locally windy levels through Thursday. The high pressure system northeast of the state will drift farther towards the east by Friday. A cut off surface low will also deepen far northwest of Kauai. A weaker ridge north of the island chain will produce a slight decrease in wind speeds from Friday into Saturday with more moderate trade winds lasting through the weekend.

The forward motion stalls on the cut off low northwest of the islands as it pushes up against the ridge. Next week's weather starts with moderate east to southeast wind flow and fairly dry conditions on Monday and Tuesday. Breezy easterly winds with brief passing showers returns from Tuesday night onward.

AVIATION
Breezy to locally windy trade winds will prevail for the next several days as a surface ridge remains to the north of the islands. Clouds and SHRA with MVFR conds will continue to favor windward and mauka areas, with isol SHRA reaching leeward areas during the overnight hours.

AIRMET Sierra in effect for tempo mtn obsc for all islands.

AIRMET Tango for moderate low level turb downwind of the terrain for all islands remains in effect, with little change expected through the forecast period.

MARINE
A 1030 mb surface high northeast of the state, will slowly drift eastward over the next several days. This feature will help drive strong to locally near gale east northeasterly trade winds across the islands through Thursday. By Friday, the high is forecast to weaken, as low pressure develops well northwest of Hawaii. In response, easterly winds will gradually weaken to light to moderate and shift slightly out of the east southeast by the weekend into early next week. A Small Craft Advisory remain in effect for all Hawaiian coastal waters through Thursday. Beyond Thursday, this hazard may need to be extended for some of the typical windier waters of Maui County and the Big Island as trades ease.

Surf heights will remain below advisory thresholds for all shores through the forecast period. Offshore buoys are showing signs of the new medium period northwest swell filling in. Can expect surf to rise locally by the early morning hours and through the afternoon Thursday, peaking Thursday night. Another small, medium period northwest pulse will enter the waters Friday night, peak Saturday, and subside Sunday. Expect these swells to produce small surf along north and northwest facing beaches. Persistent trades will continue to produce choppy, rough surf through the rest of the week along east facing beaches. By this weekend, weakening trades will allow this surf to lower and hold into early next week.
Small background southerly swell will lead to small surf along south facing beaches through the forecast period.

HFO WATCHES/WARNINGS/ADVISORIES
Small Craft Advisory until 6 PM HST Thursday for all Hawaiian waters-

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Honolulu, Honolulu Harbor, Oahu Island, Hawaii, Tide feet

Hanauma Bay
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Thu -- 03:21 AM HST     0.66 feet High Tide
Thu -- 06:03 AM HST     Sunrise
Thu -- 07:05 AM HST     Moonset
Thu -- 09:15 AM HST     -0.19 feet Low Tide
Thu -- 04:28 PM HST     1.90 feet High Tide
Thu -- 06:54 PM HST     Sunset
Thu -- 08:52 PM HST     Moonrise
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Hanauma Bay, Oahu Island, Hawaii, Tide feet

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