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Marine Weather and Tides Haleiwa, 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 7:09AM

Sunset 6:20PM

Tuesday January 28, 2020 5:20 PM HST (03:20 UTC)

Moonrise 9:54AM

Moonset 9:52PM

Illumination 17%

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 Haleiwa, HI

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Area Discussion for -

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FXHW60 PHFO 290203 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 403 PM HST Tue Jan 28 2020

SYNOPSIS. Stable and rather dry conditions will persist through Thursday, featuring light and variable winds across the western half of the state and east to southeast winds with light windward showers on the Big Island. A front will stall near Kauai on Friday, bringing wet and unsettled conditions across the western end of the state into Saturday as trade winds rebuild. Trades will veer southeasterly again early next week.

DISCUSSION. A stable and rather dry conditions persist. With the subtropical ridge sitting within 200 miles north of Kauai, easterly trade winds across the Big Island quickly veer southeasterly, placing the western half of the island chain in the wind shadow of the Big Island and allowing sea breezes to prevail this afternoon. A mid level ridge overhead is maintaining very stable conditions and a strong inversion, while precipitable water around the state remains below January normal. Aside from modest showers along windward Big Island slopes, scant rainfall has been recorded during the past 24 hours, and little is expected through the remainder of the day.

Stable and rather dry conditions will dominate through Thursday. An approaching front will push the subtropical ridge over the islands by late Wednesday, further weakening and veering the background flow and allowing land and sea breezes to dominate. The mid level ridge will remain in place overhead and maintain stable conditions. As a result, expect light windward showers to favor Big Island and east Maui, and the rest of the state will be under a stable land and sea breeze pattern, featuring afternoon clouds and a few light showers followed by clearing at night.

Wet and unsettled weather will likely develop across the western end of the state late Thursday night and Friday and may last through Saturday. A front will drop down from the northwest and stall near Kauai, while surface high pressure passing north of the front ushers in building trade winds. An upper level trough will pass over the islands on Friday and could create enough instability to trigger heavy showers. The GFS and ECMWF had been trending weaker with the upper level trough during the past few runs, but the 12Z ECMWF run showed the feature cutting off into an upper level low on top of the state Friday night and Saturday. Due to continuity, we are placing greater weight in the GFS, which lifts the upper trough out before it cuts off on Saturday. The forecast calls for wetter conditions to favor windward areas of Kauai and Oahu with moderate, mainly windward showers elsewhere. Uncertainty remains somewhat high.

Uncertainty lingers into Sunday, hinging upon the above mentioned upper level low. The GFS shows a building mid level ridge bringing increasingly stable conditions and a drier trade wind flow, and the ECMWF lingers the upper level over the state, leaving open the possibility of unstable conditions. For now, the forecast represents a blend of the models, showing a somewhat wet trade wind pattern.

Heading into next week, expect trades to veer southeasterly again with drier conditions.

AVIATION. A surface ridge of high pressure will continue to hold north of the state this afternoon and generate light easterly flow. Sea breezes are expected to dwindle this evening and be replaced by land breezes overnight.

Scattered low clouds and isolated light showers will be mainly limited to windward areas of Maui and the Big Island.

MARINE. A nearly stationary ridge just north of the area will keep winds 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. An approaching front from the NW will shift the ridge over the island chain by Thursday, weakening winds around Maui County and Big Island and generating unsettled weather. Northeast fresh to locally strong trades will fill in behind the front by the end of the week.

A dynamic weather pattern across the Pacific will keep surf elevated along north and west facing shores beginning tonight. The next northwest swell has reached Buoy 51001 which came in at 7 feet 16 seconds and is anticipated to reach Kauai by midnight. Thus, a High Surf Advisory has been issued for north and west facing shores of the smaller islands beginning midnight tonight through Wednesday night. A Small Craft Advisory has also been issued for waters exposed to the swell for seas above 10 feet. Surf will remain elevated near advisory level Thursday. Another slightly larger, northwest to north-northwest, swell is expected to fill in Thursday night and peak Friday at solid advisory levels, then slowly decline through the weekend as swell shifts to a more northerly direction.

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 build behind the front.

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. High Surf Advisory from midnight tonight to 6 AM HST Thursday for north and west facing shores of Niihau, Kauai, Oahu, and Molokai and for north facing shores of Maui.

Small Craft Advisory from midnight tonight to 6 AM HST Thursday for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-Oahu Windward Waters-Maui County Windward Waters-Big Island Windward Waters.



DISCUSSION . Wroe AVIATION . Thomas MARINE . Almanza/TS

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
51201 - Waimea Bay, HI (106)	5 mi	44 min			73°F	6 ft
51212	19 mi	50 min			78°F	5 ft
51207	21 mi	50 min			77°F	4 ft
51210	21 mi	50 min			77°F	4 ft
MOKH1 - 1612480 - Mokuoloe, HI	21 mi	44 min	E 2.9 G 6	76°F	77°F		1017.7 hPa
51211	23 mi	50 min			78°F	2 ft
OOUH1 - 1612340 - Honolulu, HI	25 mi	56 min		79°F	77°F		1017.3 hPa
51202 - Mokapu Point, HI (098)	27 mi	20 min			77°F	5 ft

Wind History for Mokuoloe, HI

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

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E9 G13

E4 G7

SW2

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S3 G6

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E4 G11

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1 day ago

E5

E3 G8

E2 G7

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E5 G10

NE5

E4 G8

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E3 G6

E8 G11

E10 G13

SE4 G8

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E3 G9

E2 G8

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E11 G14

2 days ago

E4 G10

E9 G12

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E3 G9

E3 G6

E4 G8

E2 G5

E8 G12

E7 G10

E6 G9

E8 G11

SE4 G8

SW1

S1

SW1

E2 G7

E7 G11

SE8 G11

E3 G9

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Wheeler Air Force Base / Oahu, HI	10 mi	84 min	E 7	10.00 mi	Overcast	78°F	63°F	61%	1016.6 hPa
Oahu, Kalaeloa Airport, HI	20 mi	4.5 hrs	SE 10	10.00 mi	A Few Clouds	82°F	64°F	55%	1020 hPa
Daniel K Inouye International Airport, HI	20 mi	27 min	NE 6	10.00 mi	Mostly Cloudy	80°F	63°F	56%	1017.3 hPa
Kaneohe, Marine Corps Air Station, HI	21 mi	76 min	E 8	10.00 mi	Mostly Cloudy	78°F	68°F	71%	1016.9 hPa

Link to 5 minute data for PHHI

Wind History from HHI (wind in knots)

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E4

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N3

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NW6

N3

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N3

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E7

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1 day ago

E5

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S3

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2 days ago

NE4

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W5

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Calm

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N6

NW5

NW4

W3

E6

SE6

E7

E9

E11 G15

E8

E11

E8

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Tide / Current Tables for Haleiwa, Waialua Bay, Oahu Island, Hawaii

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Tide / Current Tables for Laie Bay, 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 (22,6,7,8)

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Ground Weather Radar Station Molokai, HI

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