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PHZ121 Alenuihaha Channel- 903 Pm Hst Wed Dec 6 2023
.small craft advisory in effect through Thursday afternoon...
Rest of tonight..East winds to 25 knots. Wind waves to 8 feet. Northwest swell 6 feet and north 5 feet. Isolated showers.
Thursday..East winds to 25 knots. Wind waves to 6 feet. Northwest swell 5 feet and north 4 feet. Isolated showers.
Thursday night..Northeast winds to 25 knots. Wind waves to 6 feet. Northwest swell 4 feet and northeast 4 feet. Isolated showers.
Friday..East winds 15 knots. Wind waves to 5 feet. Northwest swell 3 feet. Isolated showers.
Friday night..East winds 15 knots. Wind waves to 4 feet. Northwest swell 6 feet. Isolated showers.
Saturday..East winds 20 knots. Wind waves to 4 feet. Northwest swell 7 feet.
Saturday night..East winds 20 knots. Wind waves to 4 feet. Northwest swell 7 feet. Isolated showers.
Sunday..East winds to 25 knots. Wind waves around 4 feet. Northwest swell 4 to 5 feet. Isolated showers.
Monday..Northeast winds to 25 knots. Wind waves around 4 feet. Northwest swell 3 to 4 feet. Isolated showers.

PHZ100 903 Pm Hst Wed Dec 6 2023
Synopsis for hawaiian coastal waters.. High pressure far northeast of hawaii will continue to move eastward as a weakening front approaches the northwest coastal waters. Winds will become light and variable over much of the island chain Friday through Saturday, as the front moves into the northwest coastal waters. Moderate to locally fresh trade winds look to build across the waters next week.

FXHW60 PHFO 070632 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 832 PM HST Wed Dec 6 2023

SYNOPSIS
A front will approach the state from the northwest, causing local winds to weaken and veer to southeasterlies. The front will stall near the western end of the state Friday into Saturday, increasing shower chances for Kauai and possibly Oahu. The front will wash out by Sunday. Another front will approach the islands near the end of the forecast period.

DISCUSSION
A high far northeast of the main Hawaiian Islands continues to drive moderate to breezy trade flow across local waters this evening. However, the high's influence is waning as it moves eastward. Low clouds embedded within trade wind flow will continue to affect windward areas through tonight, with a few showers expected to spread to leeward areas of the smaller islands from time to time.

As the high moves farther away through Thursday, a front will approach from the northwest and local winds will gradually weaken and veer to southeasterlies. This flow will cause showers to favor southeastern districts of the Big Island, while the remaining islands remain drier within the Big Island rain shadow. Expect development of localized diurnal land and sea breezes.

Models show the front will stall and weaken near the western end of the state from late Friday into Saturday. This has the potential to increase showers across Kauai and possibly Oahu throughout this period. The front wash out by Sunday. A brief stable and dry weather pattern will return, with light to moderate easterly trade winds expected from Sunday to Monday. Another front will approach the islands from the northwest Tuesday into Wednesday of next week.

AVIATION
Winds will gradually weaken and veer more southeasterly tonight through Thursday as high pressure far to the northeast moves away and a front approaches. Expect scattered showers to favor north through east sections of the islands through tonight. Although brief MVFR ceilings and visibilities are possible within showers, VFR conditions will prevail throughout the forecast period. On Thursday, lighter winds will allow development of afternoon sea breezes, increasing clouds and introducing a few showers across interior and leeward portions of the islands.

AIRMET Tango remains in effect for moderate low level turbulence over and downwind of island terrain. This AIRMET will likely be dropped tonight, however, as wind speeds decrease.

MARINE
High pressure far northeast of Hawaii and will continue to move eastward as a weakening front approaches the northwest coastal waters late this week. This will shift the winds out of the southeast tonight, but keep fresh to locally strong southeast flow over the eastern waters. A Small Craft Advisory (SCA) has been issued for select waters around Maui County and the Big Island due to the acceleration of the southeast flow. Winds are forecast to fall below SCA level by Thursday night, then become light and variable over much of the island chain Friday through Saturday, as the weakening front nears Kauai.

Recent nearshore buoy observations show a continued decline of the current north-northwest swell. As this swell continues to fade, an overlapping small medium-period north swell will arrive tonight, keeping surf heights elevated through Thursday. A new moderate medium-period northwest swell will boost north and west facing shores as it builds in Friday afternoon into the weekend potentially reaching High Surf Advisory levels as it peaks on Saturday.

Surf along east facing shores will be rough and choppy through Thursday, especially over the eastern half of the state, due to the stronger trades. A downward trend is expected through the second half of the week as the winds diminish. Small surf will continue along south facing shores with only small background swell energy in the forecast.

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

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Kawaihae
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Thu -- 12:53 AM HST     1.57 feet High Tide
Thu -- 02:01 AM HST     Moonrise
Thu -- 06:37 AM HST     0.84 feet Low Tide
Thu -- 06:45 AM HST     Sunrise
Thu -- 11:41 AM HST     1.36 feet High Tide
Thu -- 02:08 PM HST     Moonset
Thu -- 05:43 PM HST     Sunset
Thu -- 06:19 PM HST     0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kawaihae, Big Island, Hawaii, Tide feet

Mahukona
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Thu -- 12:33 AM HST     1.55 feet High Tide
Thu -- 02:01 AM HST     Moonrise
Thu -- 06:25 AM HST     0.80 feet Low Tide
Thu -- 06:46 AM HST     Sunrise
Thu -- 11:12 AM HST     1.33 feet High Tide
Thu -- 02:08 PM HST     Moonset
Thu -- 05:43 PM HST     Sunset
Thu -- 06:02 PM HST     0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Mahukona, Hawaii Island, Hawaii, Tide feet

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