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Marine Weather and Tides Kalaoa, 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 6:07AM

Sunset 6:37PM

Tuesday April 7, 2020 7:59 PM HST (05:59 UTC)

Moonrise 6:43PM

Moonset 6:10AM

Illumination 100%

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 Kalaoa, HI

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Area Discussion for -

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FXHW60 PHFO 080128 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 328 PM HST Tue Apr 7 2020

SYNOPSIS. Light and variable winds will persist through the week. A trough stalled over the islands will provide for partly cloudy skies and scattered showers into the weekend. Trade winds may return by the end of the weekend and next week.

DISCUSSION. A weak surface trough near Maui County and the Big Island is bringing clouds and showers over windward Haleakala and areas south of Hilo this afternoon. Sea breezes across the rest of the state have created some partly cloudy skies, but little rain has fallen with fairly stable atmospheric conditions taking hold. The surface trough and weak synoptic flow over the area will allow for those afternoon sea breezes and nighttime land breezes to continue through the week. Expect afternoon convective clouds with embedded showers to pop up mainly over interior areas.

A weak frontal boundary moving in the from the NW on Wednesday will join with the trough near Maui and add a some low level moisture to the mix. This will increase shower coverage a notch with a focus over the central islands. However, warming is expected aloft tonight into Thursday, so heavy rain or thunderstorms are not expected during this time frame. Friday, temperatures aloft are expected to cool again as a short wave trough moves through, bringing the potential of more vigorous showers into Saturday.

In the longer term forecast, models are depicting a weak cold front reaching Kauai Saturday and stalling over the central islands Sunday bringing increased clouds and showers. High pressure behind the front would then swing our winds around to light northwesterlies Saturday and moderate northeast trade winds on Sunday that look to continue into next week.

AVIATION. Cloud cover has increased with sea breezes across interior sections of the island chain this afternoon. The Big Island has seen the majority of the cloud and shower activity and also has a high SCT- BKN deck moving over from the southwest. While there have not been any thunderstorms as of yet, an isolated rumble is still possible before the afternoon is over. VFR conditions prevail with tempo MVFR possible with shower activity.

Showers look to increase tomorrow as a weakening front moves down the island chain with light winds continuing. No AIRMETs are in effect or anticipated.

MARINE. Low pressure centered far north of the state will maintain mainly light to gentle southerly to westerly winds over coastal waters through Saturday. A diffuse and dissipating front will move eastward across the islands tonight and Wednesday, and another shallow front is expected to move down parts of the island chain Saturday night and Sunday, producing a short period of gentle to locally moderate north winds. High pressure following the front should bring a return to trade winds late Sunday or Monday. Trades could persist through the middle of next week as the GFS and ECMWF show a surface ridge holding just north of the state.

Moderate surf is due along north facing shores into the weekend. For today, surf in the slightly overhead range is being generated by a combination of a long-period west-northwest swell from a distant source and medium-period north-northwest swell from the closer system that is cutting off the local trade winds. The distant swell will fade over the next day or so, but the shorter period north-northwest swell will build slightly tonight and Wednesday and again to around 6 to 7 ft at 12 seconds on Friday before declining during the weekend.

Surf along south and east facing shores will remain rather small through much of the upcoming week. Mainly background south to south-southeast swells will affect south facing shores. With trades disrupted locally and the trade wind fetch east of the islands suppressed, surf along east facing shores will be well below April normal. East shore surf is expected to build early next week with trades forecast to return.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Morrison AVIATION . Dye MARINE . Wroe

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
KWHH1	23 mi	59 min	NW 6 G 8	77°F	79°F		1014.4 hPa (+2.2)
ILOH1 - 1617760 - Hilo, HI	53 mi	59 min	SSE 6 G 8	72°F	77°F		1013 hPa (+1.8)
KLIH1 - 1615680 - Kahului Bay, Maui, HI	82 mi	59 min	NE 4.1 G 5.1	77°F	78°F		1014.3 hPa (+1.9)

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	7 mi	66 min	W 5	10.00 mi	Partly Cloudy	79°F	69°F	72%	1014.1 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 (2)

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Tide / Current Tables for Kailua Kona, 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 (1,6,7,8)

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Ground Weather Radar Station Kohala, HI

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