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Marine Weather and Tides Launiupoko, 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 5:48AM

Sunset 7:12PM

Friday July 3, 2020 6:57 PM HST (04:57 UTC)

Moonrise 6:13PM

Moonset 4:25AM

Illumination 98%

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 Launiupoko, HI

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Area Discussion for -

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FXHW60 PHFO 040136 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 336 PM HST Fri Jul 3 2020

SYNOPSIS. Light to moderate trade winds will prevail through the holiday weekend, then strengthen early next week. An area of increased moisture is expected to impact the islands through Saturday. Expect warm and muggy conditions, and an uptick in showers. The boost in the trades early next week, will bring with it a drier and more stable air mass.

DISCUSSION. Have made some tweaks to the first 36 hours of the forecast. Have modified dewpoints, nudging more to the higher resolution ARW model which was better capturing the upper 60s/lower 70s dewpoints that we have seen in observations today. Also made some tweaks to the PoP and associated fields. The biggest change was to lower values over the leeward sides of the smaller islands. At the same time, some areas across the state saw a boost in the their forecast QPF.

The general forecast philosophy remains the same this afternoon. The weak trough to the east of the islands has washed out and was not analyzed with the morning analysis. The showery cloud area to the east of the islands has started to fall apart, but satellite derived precipitable water (PW) continues to show a sizable area of 1.4+ inches over the central islands and upstream of the Big Island. Anticipate another uptick in showers overnight and continuing tomorrow.

As mentioned above, dewpoints have reached into the low 70s in a few locations. Elevated dewpoints are expected to continue through tomorrow before dropping back gradually with the new week. With the lighter winds and elevated dewpoints, expect muggy conditions to continue.

While light to moderate trades continue, some areas have seen winds weaken enough to allow for localized land and sea breezes. Expect winds to strengthen as we head into Sunday. As the trades build back in, we can expect a return to more typical trade wind showers.

AVIATION. No AIRMETs are currently in effect.

A high far north of the area will maintain gentle to moderate low-level easterly flow through the weekend. The low-level easterly flow will be light enough to allow local afternoon sea breezes and nighttime land breezes. VFR conditions will prevail, but sea breezes will produce isolated MVFR conditions over west and interior sections of the islands, mainly during the afternoon and evening hours. The low-level flow will carry some clouds over east sections of the islands and produce isolated MVFR ceilings and visibilities. These conditions will be most prevalent during the night and early morning hours.

MARINE. The remains of a weak surface trough passing through the area will bring light to moderate trades through Sunday. High pressure will strengthen early next week, and accelerate trade winds into the moderate to breezy range. Small Craft Advisory conditions for the typically windy areas around Maui County and the Big Island are expected to return by Tuesday.

A current small SSW swell will gradually decline into Saturday. Otherwise, a mix of small background swells from the SSE and SSW are expected through next week. Surf is expected to stay below advisory levels.

Surf along east facing shores will decrease through the weekend as the trades weaken. Surf along north facing shores will remain nearly flat with mainly background trade wind swell.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . M Ballard AVIATION . Donaldson MARINE . Morrison

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
KLIH1 - 1615680 - Kahului Bay, Maui, HI	12 mi	63 min	E 15 G 20	79°F	81°F		1013.1 hPa
51213	18 mi	61 min			80°F	3 ft
51205	18 mi	91 min			80°F	5 ft
51202 - Mokapu Point, HI (098)	66 mi	61 min			80°F	5 ft

Wind History for Kahului, Kahului Harbor, HI

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

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Last 24hr

NE14

NE9 G13

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NE7

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N10 G14

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NW4 G8

NE4

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N12 G15

N11 G15

N13 G17

N14 G17

NE17 G22

NE14 G20

NE16

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E15

1 day ago

NE16

NE14 G18

NE14 G18

NE11 G16

NE11 G14

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NE6 G9

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NE9 G12

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NW5 G8

N10 G13

NE14 G17

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NE12 G15

NE7

NE10 G14

NE12

E12 G17

NE14 G18

NE18 G22

NE18 G22

NE19

N17

NE18 G23

NE18 G23

NE19 G23

NE17 G24

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Lahaina - West Maui, HI	12 mi	72 min	NE 7 G 14	15.00 mi	Partly Cloudy	79°F	66°F	65%	1013.9 hPa
Kahului, Kahului Airport, HI	14 mi	2.1 hrs	NE 14 G 21	10.00 mi	Partly Cloudy	85°F	66°F	55%	1013.1 hPa
Lanai City, Lanai Airport, HI	15 mi	2 hrs	WNW 3	10.00 mi	Overcast	72°F	0°F	%	1013.7 hPa

Link to 5 minute data for PHJH

Wind History from HJH (wind in knots)

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Last 24hr

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E3

NE7

NE11

NE13 G18

E6 G20

NE12 G19

NE8 G19

NE16 G22

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NE12 G15

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1 day ago

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NE8

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2 days ago

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NE11

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NE15 G23

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NE10 G18

E14 G22

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E15

E12

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Tide / Current Tables for Lahaina, Maui Island, Hawaii

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Tide / Current Tables for Kihei, Maui (Hawaii) (2)

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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 (0,6,7,8)

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Ground Weather Radar Station Molokai, HI

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