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Marine Weather and Tides Kaneohe, HI Version 3.4

NOTICE 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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 6:54AM

Sunset 5:50PM

Friday December 6, 2019 8:37 AM HST (18:37 UTC)

Moonrise 2:29PM

Moonset 2:06AM

Illumination 74%

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 061402 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 402 AM HST Fri Dec 6 2019

SYNOPSIS. Thick layered clouds, bringing clouds and light to moderate rain to the region, will clear from west to east throughout today and into tonight as an upper level feature moves to the east. In its wake, high pressure to the north will allow moderate trades to filter back in, along with clouds and showers over windward areas. Light winds and drier conditions are expected over the weekend, with more clouds over interior parts of the islands during the afternoon hours.

DISCUSSION. No significant changes to the forecast this morning. Did make some tweaks to the Sky grids for the first 36 hours or so, but no significant changes.

The upper level shortwave continues to move over the region, with the bulk of the showers over Maui County and the Oahu this morning. The trailing end is over Kauai. Anticipating improving conditions over Kauai this morning, spreading to Oahu by this afternoon and to Maui later tonight.

Winds at the Big Island summits did drop a little overnight, as expected, but have already rebounded to advisory levels. Summits winds are expected to strengthen today as the upper level shortwave swings through. The current Wind Advisory is through 6pm, but will monitor the situation in the event it needs to be extended. The main batch of clouds and showers is just starting to moving over the northern portion of the Big Island this morning. While the summits have received some bouts of snowfall overnight, expect a more widespread area will likely move over the summits in the next couple of hours. The Winter Weather Warning continues until 6pm.

The above mentioned upper level short-wave trough should swing out of the area by tonight, allowing for improving conditions in the form of fewer clouds and showers. However a weak ridge over the islands will keep light winds over the region, which will also likely mean some land and sea breezes.

A weakening front is expected to approach from the north, dissipating as it stalls near Kauai and Oahu late Sunday into Monday. A high pressure system north of the region will support a brief return of trade winds Sunday into Tuesday, with front remnants helping to boost trade wind shower activity.

Another front approaching during the middle of next week could weaken winds again, and current guidance shows this front could bring strong and cool northeast winds behind it. The GFS is a little faster with the fronts arrival, but the ECMWF bring more rain to the region. Have trended the end of the forecast towards the GFS solution for now, but will be monitoring future runs to nail down the details.

AVIATION. A quick-moving upper-level trough is passing over Hawaii. There has been stratiform showers from Kauai to Maui poised to be over the Big Island soon. Ceilings recently started getting low on Lanai and Maui so AIRMET Sierra has been posted for mountain obscuration on those islands. The AIRMET may need to be expanded for other areas, so will continue to monitor and it the need arises, issue another AIRMET accordingly. We are already beginning to see the end of the shower activity move into coastal waters just northwest of Kauai.

Icing is another concern with the thick nature of these clouds. Issued an AIRMET for icing from the freezing layer at 14Kft to FL220. This is moderate icing over all islands and we will start canceling these for each island as the showers move to the southeast.

Turbulence is also possible over the island but will hold off on issuing an AIRMET for upper level turbulence until we actually see the need for it. We have only had a few reports of light turbulence thus far and the models are dissipating the intensity of the turbulence over Hawaii for the next several hours.

MARINE. High pressure far north of the islands will maintain moderate trade winds, but expect a downward trend starting later today and into tonight.

A trough moving overhead from the west will induce showers across the state through the day. A slight chance of thunderstorms is in the forecast northeast of the islands, with portions of the northern coastal waters included in the threat.

Overlapping long-period swells from the north, and then the north- northeast, will result in large surf for north and east facing shores of most islands. The north swell has been building and will reach the 8-foot High Surf Advisory (HSA) level for east facing shores today, but should remain below the north shore advisory level until later this evening. As the swell shifts around to the north-northeast this weekend, swell and surf heights will increase further and peak tonight through Saturday night, with advisory level surf along north facing shores, and possibly warning levels for east facing shores. Headed into next week, advisory level surf is possible with a couple of northwest swells beginning Sunday night into Monday.

HFO WATCHES/WARNINGS/ADVISORIES. High Surf Advisory until 6 PM HST Sunday for Kauai Windward-Oahu Koolau-Olomana-Molokai Windward-Maui Windward West-Windward Haleakala-Big Island North and East.

Wind Advisory until 6 PM HST this evening for Big Island Summits.

Winter Storm Warning until 6 PM HST this evening for Big Island Summits.



DISCUSSION . M Ballard 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
MOKH1 - 1612480 - Mokuoloe, HI	1 mi	62 min	SSE 1.9 G 4.1	71°F	77°F		1013.3 hPa
51207	4 mi	38 min			80°F	7 ft
51210	4 mi	38 min			79°F	6 ft
51202 - Mokapu Point, HI (098)	5 mi	38 min			79°F	7 ft
OOUH1 - 1612340 - Honolulu, HI	9 mi	56 min	Calm G 1.9	71°F	80°F		1013.2 hPa
51211	13 mi	68 min			80°F	3 ft
51212	21 mi	38 min			81°F	3 ft
51201 - Waimea Bay, HI (106)	25 mi	32 min			76°F	7 ft

Wind History for Mokuoloe, HI

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

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Last 24hr

E8 G13

E4 G9

E9 G13

E5 G12

E4 G12

E7 G15

E5 G13

E7 G11

E7 G10

E7

E5 G11

E10 G13

E8 G11

E5 G11

E3 G11

E4 G8

NE8

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S2

SW1 G5

S3

1 day ago

NE5

E6 G12

E8 G12

E5 G10

E4 G11

E4 G11

E3 G10

NE7 G10

E5 G8

E8

E9 G12

E8 G11

NE10

E8 G12

E7 G11

E11

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E5 G13

E10 G13

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E10 G13

E7 G11

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2 days ago

E11 G18

E10 G16

E9 G16

E6 G13

E9 G13

E4 G12

E4 G9

E5 G9

E4 G8

E4 G8

E3 G9

E4

E2 G6

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E1 G7

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E4 G7

E3 G7

E4 G9

E3 G6

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E7 G12

E3 G8

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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	71 min	N 0	10.00 mi	Light Rain	72°F	68°F	87%	1012.5 hPa
Daniel K Inouye International Airport, HI	9 mi	45 min	N 0	10.00 mi	Light Rain	71°F	66°F	87%	1013.1 hPa
Wheeler Air Force Base / Oahu, HI	14 mi	1.7 hrs	W 4	10.00 mi	Light Drizzle	66°F	65°F	99%	1012.4 hPa
Oahu, Kalaeloa Airport, HI	17 mi	45 min	ENE 3	10.00 mi	Light Rain	71°F	68°F	90%	1014 hPa

Link to 5 minute data for PHNG

Wind History from HNG (wind in knots)

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E10

E11 G17

E11 G16

E5

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E6

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Calm

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E7

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NE9

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E7 G16

E10

NE12 G16

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E10 G18

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2 days ago

E13 G22

E12 G22

E10

E8

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E7

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NE19 G22

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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 (13,3,4,5)

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Ground Weather Radar Station Molokai, HI

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