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Marine Weather and Tides Holualoa, HI Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

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Sunrise 6:08AM

Sunset 6:36PM

Sunday April 5, 2020 6:53 PM HST (04:53 UTC)

Moonrise 4:36PM

Moonset 4:39AM

Illumination 96%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Holualoa, HI

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Area Discussion for -

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FXHW60 PHFO 060134 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 334 PM HST Sun Apr 5 2020

SYNOPSIS. A low to our northwest and a displaced ridge to our east will keep winds light across the islands through the week. Showers will favor mauka areas during the day and areas near the coast at night. Increased moisture will slide northward tonight through Tuesday, bringing the potential for locally heavy downpours and a few thunderstorms.

DISCUSSION. The pressure gradient between a low far northwest of Kauai and a ridge far northeast of Hilo remains slack, keeping winds quite light across the area this afternoon. Local sea breezes were apparent today given the low cloud distribution. Satellite loop shows patchy broken low clouds across mauka sections of all the islands. Additionally, broken high clouds attempt to obscure the view of lower clouds east of Oahu. Radar shows scattered to numerous showers across southeast facing shores and slopes of Maui and the Big Island, with additional showers forming across windward Oahu.

Models show the low northwest of the islands will gradually lift northeastward away from the state during the next couple of days, while the ridge to our northeast remains nearly stationary. A weakening frontal boundary will move into the western islands Monday night or Tuesday, then gradually dissipate as it drifts eastward across the chain through the remainder of the week. Frontal remnants may linger across the eastern end of the state into next weekend. Background wind flow will remain light, allowing development of local land and sea breezes.

Showers will continue to favor coastal areas at night and mauka areas during the day as an alternating pattern of land and sea breezes continues through the week. Increased moisture will be drawn northward over the islands tonight through Tuesday. Combined with troughing aloft, this increased moisture will broaden shower coverage and boost shower intensity statewide, with some locally heavy rainfall and even a few thunderstorms possible. Models suggest shower coverage will decrease over the western islands Wednesday through late next week as the deepest moisture shifts eastward.

AVIATION. Stalled or quasi-stationary boundary just to the northwest of Kauai will give Kauai and possibly Oahu the chance for clouds and showers, most likely Monday afternoon into the overnight hours. A few showers have popped up on the inner portions of the Big Island this afternoon but they should dissipate after sunset. Land breezes will develop tonight into Monday again.

AIRMET Sierra is still in effect for the north through east sections of the Big Island as well as east sections of Maui. Will add Lanai and Molokai back into that AIRMET.

Turbulence models indicate moderate turbulence over the state from 23K to 30Kft and it looks as if this will be the case until at least this evening.

MARINE. The current light to locally moderate wind regime is expected to persist through early this week. The overall background flow will generally be from the southeast to south as a boundary slowly approaches the area from the northwest. As it approaches, a broad area of convergent southeast to south flow is expected to set up over the state tonight, extending through Tuesday. This will likely result in a period of unsettled weather with locally heavy rainfall, and possibly thunderstorms. With seas and swells expected to stay below Small Craft Advisory thresholds for much of the upcoming week, the main threat to mariners will be associated with any thunderstorm development.

The new north-northwest swell has peaked and is expected to steadily decrease through the rest of the day. As this swell lowers, a new 3- to 4-foot long-period west-northwest swell will slowly begin to fill in tonight. This swell is expected to peak Monday night and will be followed by a moderate northwest swell arriving late Tuesday. This second swell should be slightly larger and is expected to peak Tuesday night or early Wednesday. Surf is expected to remain below the High Surf Advisory criteria along north and west facing shores with these swells.

A series of small south to south-southeast swells are expected during the upcoming week. Surf is expected to reach the summer average by Tuesday, followed by another small pulse later this week. Surf along east facing shores will remain small through the upcoming week due to the lack of trades.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Powell AVIATION . Chevalier MARINE . Kinel

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
KWHH1	28 mi	54 min	W 5.1 G 5.1	76°F	79°F		1012.1 hPa (-0.5)
ILOH1 - 1617760 - Hilo, HI	50 mi	54 min	Calm G 1.9	73°F	77°F		1012 hPa (+0.6)
KLIH1 - 1615680 - Kahului Bay, Maui, HI	90 mi	54 min	N 1.9 G 4.1	76°F	78°F		1012.5 hPa (-0.0)

Wind History for Kawaihae, HI

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Kailua / Kona, Keahole Airport, HI	0 mi	61 min	NW 9	10.00 mi	Mostly Cloudy	78°F	69°F	74%	1012.2 hPa

Link to 5 minute data for PHKO

Wind History from HKO (wind in knots)

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Tide / Current Tables for Kailua Kona, Big Island, Hawaii

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Tide / Current Tables for Kawaihae, Big Island, Hawaii

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Weather Map

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GEOS Local Image of Hawaii    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for (0,6,7,8)

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Ground Weather Radar Station Kohala, HI

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