Sunrise 5:47 AM   Sunset 6:46 PM Moonrise 4:03 AM   Moonset 4:44 PM

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PHZ123 Big Island Leeward Waters- 300 Am Hst Sun May 5 2024
.small craft advisory in effect through early Monday morning - .
Today - West of the big island, west southwest winds 7 to 10 knots, veering to west 10 to 15 knots this afternoon. NEar south point, east winds 25 to 30 knots. Seas 5 to 8 feet. Wave detail: east 7 feet at 6 seconds and south 3 feet at 18 seconds. Scattered showers, mainly this morning. Tonight - West of the big island, west northwest winds 7 to 10 knots. NEar south point, east winds to 30 knots, becoming 25 to 30 knots after midnight. Seas 6 to 9 feet. Wave detail: east 7 feet at 6 seconds and south 3 feet at 17 seconds. Scattered showers. Monday - West of the big island, north winds 7 to 10 knots, backing to southwest in the afternoon. NEar south point, east winds 25 to 30 knots. Seas 6 to 9 feet, subsiding to 5 to 7 feet in the afternoon. Wave detail: east 7 feet at 6 seconds and south 3 feet at 16 seconds. Scattered showers, mainly in the morning. Monday night - West of the big island, west northwest winds 7 to 10 knots. NEar south point, east winds to 30 knots, becoming 25 to 30 knots after midnight. Seas 5 to 7 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers. Tuesday - West of the big island, northwest winds 7 to 10 knots. NEar south point, east northeast winds to 25 knots, veering to east in the afternoon. Seas 5 to 7 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers. Tuesday night - West of the big island, northwest winds to 10 knots in the evening, becoming variable less than 10 knots. NEar south point, east winds to 25 knots, easing to 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers in the evening, then scattered showers after midnight. Wednesday - West of the big island, north northwest winds 7 to 10 knots, becoming variable less than 10 knots. NEar south point, east northeast winds 10 to 15 knots, becoming east 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 5 seconds. Scattered showers. Thursday - West of the big island, north northwest winds 7 to 10 knots in the morning, becoming variable less than 10 knots, then becoming north northwest to 10 knots after midnight. NEar south point, east winds 15 to 20 knots, becoming east northeast 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave detail: east northeast 6 feet at 6 seconds. Scattered showers in the morning. Isolated showers through the night, then scattered showers after midnight.

PHZ100 300 Am Hst Sun May 5 2024
Synopsis for hawaiian coastal waters - Strong high pressure will remain nearly stationary far north of the islands through Monday, then move east.

FXHW60 PHFO 051321 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 321 AM HST Sun May 5 2024

SYNOPSIS
Breezy trade winds will continue into Monday and then decrease to more moderate levels from Monday afternoon into Tuesday. An upper level disturbance passing through the islands will keep enhanced showers in the forecast through Monday. An unstable band of clouds and showers will drift into the islands on the trade winds, bringing another round of wet weather for all islands from Wednesday into Thursday.

DISCUSSION
The satellite water vapor imagery this morning shows a weakening upper level low slowly drifting eastward across the Hawaiian Islands. A subtropical jet stream is also set up over the islands. A Wind Advisory was issued this morning for the highest summits of Mauna Kea and Mauna Loa due to strong southwest winds aloft. These stronger summit winds will diminish later this evening.

A 1030 mb high pressure system remains far north of the island chain and will continue to produce breezy easterly trade winds across the state into Monday. By Monday afternoon trade wind speeds transition to more moderate levels as the high pressure system drifts eastward away from the Hawaiian Islands. Expect moderate easterly trade winds to continue through the rest of the week.

Wetter than normal conditions remain in the forecast for all islands through much of this week. Enhanced showers will continue into Monday as a weakening upper level disturbance drifts from west to east across the island chain. Tuesday will trend a bit drier. An unstable band of clouds and showers, remnants of an old East Pacific cold front, will drift into the islands on the trade winds producing wet weather for all islands from Wednesday into Thursday. An upper level trough sweeping in from north on Thursday and Friday will likely keep enhanced showers in the forecast into next weekend.

AVIATION
Breezy easterly trade winds will persist into tonight, with clouds and showers favor windward and mauka locations. MVFR conditions will be possible in showers, especially across windward areas overnight through the early morning hours. Elsewhere, VFR conditions will prevail, with only spotty showers making it to leeward areas.

AIRMET Sierra for tempo mountain obscuration will persist over windward portions of each island through the morning hours.

AIRMET Tango is in effect for mod turb below 9000 feet downwind of island terrain. Additionally, some moderate turbulence aloft (FL280-FL350) is expected today.

MARINE
Consolidating high pressure far north of the islands will support fresh to strong easterly trade winds into Monday, with the typical windier waters around Maui County and the Big Island approaching near- gale force speeds. A Small Craft Advisory (SCA) for all waters will remain posted through at least tonight for winds and seas greater than 10 feet. The high will move east thereafter, leading to a gradual easing to moderate to locally strong speeds by the middle of the week. The SCA may be pulled back over the first half of the week to the typical windier waters around Maui County and the Big Island by Tuesday. A disturbance aloft will allow for the development of a few heavier showers the next couple of days, producing periods of gusty winds and reduced visibility.

East facing shores will continue to see rough and choppy seas for at least the next several days before declining coinciding with the weakening winds. North facing shores will decline today into Monday. A reinforcing small to moderate northwest swell will move in Monday before fading into midweek.

South facing shores will continue to see consistent pulses of swell through the week as storm activity in the South Pacific ramps up. Long period forerunners have filled in overnight and will build into Sunday, with peak surf heights remaining below High Surf Advisory (HSA) heights. Reinforcing south to southwest swells filling in on Monday looks to be just below HSA.

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

Small Craft Advisory until 6 AM HST Monday for all Hawaiian waters.

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Kailua Kona
Click for Map
Sun -- 01:15 AM HST     1.45 feet High Tide
Sun -- 04:03 AM HST     Moonrise
Sun -- 05:52 AM HST     Sunrise
Sun -- 07:37 AM HST     -0.28 feet Low Tide
Sun -- 02:21 PM HST     1.93 feet High Tide
Sun -- 04:43 PM HST     Moonset
Sun -- 06:48 PM HST     Sunset
Sun -- 08:43 PM HST     0.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kailua Kona, Big Island, Hawaii, Tide feet

Kawaihae
Click for Map
Sun -- 01:39 AM HST     1.74 feet High Tide
Sun -- 04:02 AM HST     Moonrise
Sun -- 05:51 AM HST     Sunrise
Sun -- 07:59 AM HST     -0.20 feet Low Tide
Sun -- 02:43 PM HST     2.22 feet High Tide
Sun -- 04:43 PM HST     Moonset
Sun -- 06:48 PM HST     Sunset
Sun -- 09:00 PM HST     0.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kawaihae, Big Island, Hawaii, Tide feet

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