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Marine Weather and Tides Kaneohe, 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 7:03PM

Thursday August 13, 2020 10:41 PM HST (08:41 UTC)

Moonrise 1:07AM

Moonset 2:43PM

Illumination 21%

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 Kaneohe, HI

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Area Discussion for -

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FXHW60 PHFO 140641 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 841 PM HST Thu Aug 13 2020

SYNOPSIS. A ridge of high pressure north of the state will maintain moderate trade winds through at least early next week. Some day to day fluctuations are expected, with a slight increase in trade wind speeds expected Friday night and Saturday. Otherwise, our typical trade wind weather is expected with showers favoring windward and mountain areas, especially during the early morning and overnight hours. A trough of low pressure aloft could bring an increase in shower coverage and intensity Tuesday through late next week.

DISCUSSION. Currently at the surface, a 1031 mb high is centered around 1600 miles north-northeast of Honolulu, and is driving moderate trade winds across the island chain this evening. Infrared satellite imagery shows partly cloudy skies in most areas, although a bit more cloud cloudiness is present over leeward sections of the Big Island and Maui. Radar imagery showers scattered showers over windward slopes and coasts, with a few lingering leeward showers in the more sheltered areas of Maui and the Big Island. Main short term concern revolves around rain chances and trade wind trends during the next couple days.

High pressure north of the state will keep moderate trade winds in place tonight and Friday. The trades then are expected to increase slightly Friday night and Saturday as the gradient tightens in response to a broad area of low pressure passing by to the south of the state. The trades should trend back to moderate levels Sunday through Tuesday as the ridge north of the islands weakens. The gradient is forecast to relax further Wednesday through late next week, with trades lowering into the light to moderate range and allowing for sea breezes and land breezes in the more sheltered leeward areas.

As for weather details, fairly typical trade wind conditions will continue tonight through Monday with bands of moisture moving through the islands bringing scattered windward showers and the occasional leeward spillover. Showers will be most prevalent during the night and early morning hours during this time frame. Troughing aloft is forecast to build southward over the state Tuesday through late next week, and this should elevate inversion heights and bring an increase in shower coverage and intensity statewide. Showers will continue to favor windward slopes and coasts during this time, with an increase in leeward and interior shower activity during the afternoon and evening hours.

AVIATION. A high pressure ridge north of the Hawaiian Islands will keep moderate trade winds in the forecast over the next 24 hours. Passing showers may produce brief MVFR conditions with scattered shower activity mainly over windward and mountain areas.

No AIRMETs are in effect and none are expected.

MARINE. Moderate to fresh easterly trades will continue through Friday, then briefly increase into the fresh to strong category Friday night through late Saturday as the pressure gradient tightens over the islands in response to low pressure passing far to the south. This will likely translate to a Small Craft Advisory being issued for the typical windier waters between Maui County and the Big Island by or come Friday afternoon. Guidance shows the gradient quickly relaxing Sunday into early next week as this area of low pressure to the south continues westward and a weakness in the subtropical ridge forms far north of the state as a backdoor front drops southward toward 30N.

Surf along east facing shores will hold steady into the weekend near or just under the advisory level of 8 ft (faces) as a moderate northeast swell moves through from a batch of strong breezes that setup within the 040-050 degree band off the west coast earlier this week. Surf will gradually ease Sunday into early next week as the winds relax locally as the swell drops. Although confidence remains low, a small easterly swell will remain possible from distant Elida in the eastern Pacific over the weekend, mostly for the eastern end of the state.

Surf along south facing shores will remain small through Saturday, then gradually trend up Sunday into early next week as a small, south-southwest swell from recent activity down near New Zealand arrives. The PacIOOS nearshore Pago Pago buoy reflects this small source moving through over the past 36-Hrs. WAVEWATCH III guidance shows a reinforcement out of the same area Monday night through Tuesday, which should hold through midweek before easing. For the long range, another similar pulse will become a possibility through the third week of the month as low pressure systems continue to move through Hawaii's swell window southeast of New Zealand.

Surf along north facing shores will remain near the summertime average through the period, except for locations exposed to the previously discussed northeast swell.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Jelsema AVIATION . Bohlin MARINE . Gibbs

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
MOKH1 - 1612480 - Mokuoloe, HI	1 mi	65 min	E 2.9 G 6	79°F	82°F		1015.7 hPa
51207	4 mi	45 min			80°F	6 ft
51210	4 mi	45 min			80°F	5 ft
51202 - Mokapu Point, HI (098)	5 mi	45 min			80°F	6 ft
OOUH1 - 1612340 - Honolulu, HI	9 mi	53 min	NE 1.9 G 5.1				1015.8 hPa
51211	13 mi	71 min			81°F	3 ft
51212	21 mi	45 min			82°F	3 ft
51201 - Waimea Bay, HI (106)	25 mi	195 min			81°F	4 ft

Wind History for Mokuoloe, HI

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Last 24hr

E8 G11

E8 G12

E3 G7

E4 G9

E11

E6 G10

E4 G10

E8 G12

E5 G11

E7 G11

E8 G14

E4 G15

E6 G13

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NE10 G14

NE10 G14

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1 day ago

E8 G12

E4 G8

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NE10 G14

E5 G9

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E6 G9

E7 G10

E4 G10

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E4 G9

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NE12 G16

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2 days ago

NE5

E3 G9

E7

E5 G9

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E6 G10

NE9 G13

E10 G13

NE10 G13

E11 G14

NE9 G12

NE12 G18

E6 G14

E11

E5 G13

E8 G13

E3 G10

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Kaneohe, Marine Corps Air Station, HI	2 mi	1.7 hrs	E 9	10.00 mi	Partly Cloudy	82°F	69°F	65%	1014 hPa
Daniel K Inouye International Airport, HI	9 mi	48 min	NE 8	10.00 mi	A Few Clouds	79°F	68°F	69%	1015.5 hPa
Wheeler Air Force Base / Oahu, HI	14 mi	45 min	NE 8	10.00 mi	Fair	75°F	66°F	77%	1014.7 hPa
Oahu, Kalaeloa Airport, HI	17 mi	48 min	N 0	10.00 mi	Mostly Cloudy	77°F	66°F	71%	1016.6 hPa

Link to 5 minute data for PHNG

Wind History from HNG (wind in knots)

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E9

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1 day ago

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E6 G15

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NE10

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Tide / Current Tables for Waikane, Kaneohe Bay, Oahu Island, Hawaii

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Tide / Current Tables for Waimanalo, Oahu 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 (4,6,7,8)

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Ground Weather Radar Station Molokai, HI

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