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Marine Weather and Tides Kalihiwai, 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 7:00AM

Sunset 5:53PM

Saturday December 14, 2019 2:28 AM HST (12:28 UTC)

Moonrise 8:44PM

Moonset 9:33AM

Illumination 92%

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 Kalihiwai, HI

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Area Discussion for -

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FXHW60 PHFO 140639 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 839 PM HST Fri Dec 13 2019

SYNOPSIS. Surface high pressure passing north of the islands will keep breezy to locally windy trades blowing tonight. The trades will ease some over the weekend as the high moves away. Rainfall will favor windward and mauka locales, with a few showers briefly reaching leeward spots. The jet stream will bring increasing high clouds tonight. A dry, stable airmass will take control of our weather this weekend and the first half of next week, with few showers and considerable sunshine. The next high passing far to the north will return locally windy trades Monday and Tuesday.

DISCUSSION. A surface trough is moving away to the west of the islands. Meanwhile, high pressure passing to our north is bringing locally windy conditions to the islands this evening. This high will continue moving to the east over the next couple of days, so trade winds will trend down just a bit over the weekend.

An upper trough to the west of the islands has destabilized our airmass over the last few days and enhanced trade wind showers. This trough will weaken as we head into the weekend, leading to fewer and less intense trade showers. High level moisture riding in on the subtropical jet will continue to bring high clouds at times, and these will increase tonight into Saturday before pushing away later Saturday as the jet shifts to the southeast of the islands.

Trade wind showers will decrease further early next week as stable conditions and drier air move in. A strong upper high centered just to our north will make for generally nice pre-holiday weather with lots of sunshine and relatively few showers. Rainfall will be light and should favor windward and mauka sections during the nights and mornings. Showers will likely increase again starting Thursday as mid-level heights fall near the islands and cooler temperatures aloft start to make the airmass a little more unstable again.

The surface high to the north will continue eastward into the weekend, so trade wind speeds on Saturday will be a notch below today's levels. Winds will even be a notch lower on Sunday as a col between two highs passes north of the islands. The next surface high will pass well north of the islands on Monday, returning breezy to locally windy trade wind speeds for Monday and Tuesday. The winds should ease Wednesday, but may increase again on Thursday as the next in the series of highs passing to the north approaches our longitude.

AVIATION. A large area of showers is still present southwest of Kauai. Some of this moisture will affect Kauai with lower ceilings and visibility into the overnight hours. AIRMET Sierra is currently in effect for Oahu and Kauai for mountain obscuration. The rest of the island chain is experiencing periods of mountain obscuration but nothing consistent as of now. As we progress into Saturday, we will be in a more traditional northeast tradewind pattern with a majority of the rain showers affecting the windward slopes. Winds may be strong enough in some areas to push a few showers into leeward sections.

Winds will continue to be moderate. AIRMET Tango is currently in effect for low level turbulence below 9,000ft but we may be able to cancel that AIRMET as the winds weaken overnight. But with moderate winds forecast for Saturday, the AIRMET may need to be activated again.

MARINE. The current northwest swell will continue to subside. Surf tonight will hold just below the advisory level along north and west facing shores, then lower to moderate levels Saturday. A short period north-northeast swell will keep surf elevated along exposed east facing shores, mainly on Kauai and Oahu, through Saturday but should stay just below advisory levels.

A reinforcing large northwest swell is forecast to build late Sunday into Monday and peak Monday night, possibly near warning levels. This swell should slowly decline Tuesday into Wednesday, but will likely be reinforced by another large northwest swell Wednesday night into Thursday.

High pressure north of the state will keep moderate to locally strong trade winds over the area through Saturday. The combination of the current northwest swell and the strong trade winds is resulting in a Small Craft Advisory (SCA) for all coastal waters, except the Maui leeward waters. Winds will begin to trend down slightly, likely resulting in small craft winds being confined to the typically windier zones around Maui County and the Big Island Saturday. Seas will also lower as the northwest swell subsides.

A slight decline in trade winds and period without Small Craft conditions is possible Sunday as the current high moves east and a new high builds north. Trade winds should return to moderate to locally strong speeds by early next week and seas will build again with the reinforcing northwest swell.

HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 AM HST Saturday for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-Kauai Channel- Oahu Windward Waters-Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters-Maalaea Bay-Pailolo Channel-Alenuihaha Channel-Big Island Windward Waters-Big Island Leeward Waters-Big Island Southeast Waters.



DISCUSSION . Powell 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
NWWH1 - 1611400 - Nawiliwili, HI	19 mi	65 min	E 16 G 18	78°F	82°F		1017.4 hPa
51201 - Waimea Bay, HI (106)	79 mi	53 min			77°F	10 ft
51WH0 - WHOTS - Woods Hole Ocean Time-series	84 mi	59 min	E 18		79°F		1017.2 hPa

Wind History for Nawiliwili, HI

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

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5 AM

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1 PM

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Last 24hr

NE10 G16

NE12 G17

NE14 G18

NE16

NE22

NE5 G10

NE19 G24

NE17 G23

NE15 G19

NE13 G19

NE14 G19

NE13 G18

E14 G18

NE15 G20

NE14 G17

NE12 G17

NE13 G16

NE16

NE10 G14

NE11 G14

NE10 G15

NE13 G17

NE12 G16

E13 G16

1 day ago

W3

W4

W6

W4

W5

W4

SW4

S3

N2

E3

E4

E5 G9

E5

NE6

N6 G10

NW8 G11

N7 G14

N8 G15

NW11 G16

W2

NE11 G15

NE10 G13

NE10 G14

NE12 G19

2 days ago

W5

NW2

SW5

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SW5

SW3

E2

SE6

SE6

SE5

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E3

NE2

SW4

W4

W4

W3

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W4

W5

W4

W3

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Lihue, Lihue Airport, HI	17 mi	36 min	E 12	10.00 mi	Partly Cloudy	78°F	71°F	79%	1017.5 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI	21 mi	33 min	E 4	10.00 mi	Partly Cloudy	76°F	68°F	77%	1016.1 hPa

Link to 5 minute data for PHLI

Wind History from HLI (wind in knots)

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Last 24hr

NE16

NE16

NE19 G24

E19

E22 G28

NE14

NE23 G28

NE21 G25

NE19

NE15

E18

E17

E14

NE16 G21

NE15

NE14

NE12

E17

NE14 G23

E12

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1 day ago

W5

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W6

W8

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N6

Calm

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NE5

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N9

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NE17

N15 G25

N12 G20

NE20

NE17

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NE14

NE16

2 days ago

W9

W7

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Calm

E4

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SE7

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NE6

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E3

Calm

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W6

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W7

W5

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W6

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Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii

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Tide / Current Tables for Hanamaulu Bay, Kauai 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 (7,2,3,4)

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Ground Weather Radar Station Kauai, HI

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