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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 6:55AM

Sunset 6:11PM

Tuesday January 28, 2020 6:22 AM HST (16:22 UTC)

Moonrise 9:44AM

Moonset 9:44PM

Illumination 13%

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 281332 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 332 AM HST Tue Jan 28 2020

SYNOPSIS. Benign weather conditions will persist over the next few days as a ridge sits just north of Kauai. Light winds will persist over Kauai and Oahu while southeast trade winds are expected over Maui County and the Big Island. An approaching front will push the ridge over the state Wednesday night and Thursday bringing light winds across the islands. The front will likely bring wet and unsettled weather to portions of the state Friday and early Saturday as trades rebuild.

DISCUSSION.

High pressure centered off the California coast is extending a surface ridge to the area just north of Kauai. The placement of the ridge close to the islands has veered our trade winds from the east southeast. Moderate trades will remain into Wednesday over the Big Island and Maui County but Kauai and Oahu will see light winds as the Big Island blocks the southeast flow. Expect afternoon seabreezes and nighttime land breezes over Kauai and Oahu with limited afternoon clouds and showers over interior sections. The rest of the state will maintain limited windward showers.

An upper level ridge is keeping a cap on any convection over the islands, and hence the limited showers forecasted over the next few days. The upper ridge will move aside later this week as an upper trough approaches Thursday bringing instability edging in from the northwest Thursday night and Friday. A surface front associated with the upper trough will push the surface ridge over the state by Thursday, cutting off island trades and allowing widespread afternoon sea breezes and nighttime downslope flow.

Wet and unsettled weather is expected as the instability increases and the front brings enhanced moisture to the area Thursday night and Friday. The front is forecast to stall somewhere between Kauai and Oahu Friday afternoon while high pressure behind the front reinvigorates our northeast trade winds. As the frontal moisture, instability, and island terrain interact there may be a possibility for heavy showers especially over the western end of the state. The greatest potential for wet and unsettled conditions will be over windward areas, especially near the stalled front.

Uncertainty on shower coverage lingers heading into the weekend, while it appears that moderate trade winds will prevail. The latest runs of the GFS and ECMWF wash out the front and lift it northward, perhaps leaving some shallow moisture behind to fuel wet trades on Saturday. Both models suggest mid level ridging will build overhead on Sunday as trade winds hold, favoring a typical pattern of windward rainfall.

AVIATION. A large mass of broken low clouds with some embedded showers will likely affect the windward side of the Big Island this morning, including the Kau district. Even windward Maui may see some increasing clouds later this morning. Models though are suggesting most of this mass to dissipate as they spread westward this morning. AIRMET Sierra for mountain obscuration is not expected. Other than for weakening trades over the Big Island and east Maui, a light southeast flow will prevail elsewhere. This weak flow will lead to sea breezes to the lee areas of the remaining islands. Add on daytime heating will result in some spotty afternoon clouds. A low level inversion of around 6 to 7k feet, though, will limit these clouds to brief isolated light showers. The windward side of the remaining islands can also expect a shower or two, carried in by the southeast wind. Brief MVFR ceilings may occur with this showers with no restrictions to vis.

MARINE. A ridge of high pressure north of the area will slowly move south as a front passes north of the state. Winds are expected to be light and variable across Kauai and Oahu, and moderate to locally fresh out of the east to southeast over Maui County and the Big Island through most of the week. A shift in the weather pattern is possible Thursday night into Friday as a stronger front approaches from the northwest.

The current northwest swell continues to gradually decrease. It has declined sufficiently this morning so that the High Surf Advisory was able to be cancelled. And the Small Craft Advisory was dropped as well, as winds have decreased below 25 knots in the waters around the Big Island.

A progressive weather pattern will keep surf elevated along north and west facing shores. The next northwest swell is expected to arrive tonight and peak at solid advisory levels by Wednesday morning. A larger, potentially warning level, northwest to north- northwest swell is expected towards the end of the week.

Surf along exposed east facing shores will remain rather small through the period due to the lack of persistent trades locally and upstream across the eastern Pacific. An increase in surf is possible over the weekend as trades are expected to return.

Surf along south facing shores will remain small through the week. However, background south swells should be enough to keep things from going flat.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Morrison AVIATION . H Lau 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	52 min		70°F	78°F		1018.2 hPa
ILOH1 - 1617760 - Hilo, HI	50 mi	52 min		68°F	78°F		1018.4 hPa
KLIH1 - 1615680 - Kahului Bay, Maui, HI	90 mi	58 min		69°F	77°F		1018.6 hPa

Wind History for Kawaihae, HI

(wind in knots)    EDIT      (on/off)   Help

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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	29 min	ENE 5	10.00 mi	Fair	69°F	61°F	76%	1018.3 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 (11,2,3,4)

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Ground Weather Radar Station Kohala, HI

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