Monday, December9, 2019
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Marine Weather and Tides
Eleele, 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

Sunrise 6:57AMSunset 5:51PM Monday December 9, 2019 4:26 PM HST (02:26 UTC) Moonrise 4:24PMMoonset 4:46AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 days in cycle
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.
Marine Forecasts
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PHZ113 Kauai Channel- 316 Pm Hst Mon Dec 9 2019
Tonight..East winds 10 knots. Wind waves 2 feet or less. Northwest swell 7 feet.
Tuesday..East winds 10 knots. Wind waves 2 feet or less. Northwest swell 8 feet.
Tuesday night..Northeast winds 10 knots. Wind waves 2 feet or less. Northwest swell 8 feet. Isolated showers.
Wednesday..East winds 15 knots. Wind waves 2 feet or less. Northwest swell 8 feet. Isolated showers in the morning.
Wednesday night..East winds 15 knots. Wind waves 3 feet. Northwest swell 12 feet increasing to 14 feet after midnight. Isolated showers.
Thursday..East winds 15 knots. Wind waves 3 feet. Northwest swell 14 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Thursday night..Northeast winds 15 knots. Wind waves 5 feet. Northwest swell 13 feet decreasing to 11 feet after midnight. Scattered showers.
Friday..East winds 20 knots. Wind waves 6 to 7 feet. Northwest swell 8 to 10 feet. Scattered showers.
Saturday..East winds 15 knots. Wind waves 6 feet. Northwest swell 6 to 7 feet. Scattered showers.
PHZ100 316 Pm Hst Mon Dec 9 2019
Synopsis for hawaiian coastal waters.. A weak front just northwest of kauai will move slowly north as a ridge builds over the area from the east. A new front will approach from the northwest by mid-week with a strong high building behind it.


7 Day Forecast for Marine Location Near Eleele, HI
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location: 21.9, -159.59     debug


Area Discussion for -
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FXHW60 PHFO 100150 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 350 PM HST Mon Dec 9 2019

SYNOPSIS. A stalled front north of the state will maintain light easterly winds through the middle of the week. Mostly dry and stable weather will prevail with a few clouds and showers setting up over interior areas each afternoon due to sea breezes. Increasing moisture associated with a second front will bring increasing showers Thursday and gusty northeast winds by Friday.

DISCUSSION.

A stalled front just north of Kauai will weaken in place over the next few days bringing benign weather and light easterly trade winds to the islands through midweek. Sea breezes are expected along leeward coastlines, and interior and mountain locations will see afternoon clouds and limited light showers.

Stable conditions aloft are keeping cloud tops limited to around 8 thousand feet and any showers that do form over the islands have been short-lived. A weak trough to our south is maintaining shower activity over the coastal waters south of the Big Island, and a low level convergence area has created a some cloudy skies over Kauai. Otherwise, skies over the islands this afternoon are mostly clear over Oahu and Maui County, while the windward Big Island formed some thin low clouds in the afternoon. Skies should partially clear tonight with island cooling and light offshore flow. Expect similar conditions through Wednesday.

Thursday, synoptic weather conditions begin to change as a second, more robust cold front approaches from the northwest, and an upper level trough brings colder temperatures aloft that will trigger increasing shower coverage and rainfall intensity. Showers are expected to increase over Kauai Thursday evening and then the rest of the state Thursday night. The front will also bring strong gusty northeast winds Thursday night and Friday. However, the GFS and ECMWF global models are having quite a hard time coming into agreement with the details of the front and upper trough at this time. Historically, similar weather patterns have brought the lion's share of rain to Kauai, with the rest of the state seeing frequent windward showers and passing leeward rainfall. The forecast will continue to be updated as the model solutions converge.

Saturday, the front is forecast to retreat to the north and dissipate while the upper trough weakens and the atmosphere becomes more stable. Trade winds are expected to drop to moderate levels while shower coverage decreases and focus over windward and mountain areas.

AVIATION. VFR conditions prevail at all the TAF sites and these conditions are expected to prevail through the remainder of the day and on through the overnight hours. Elsewhere, VFR conditions prevail across most other areas with local MVFR conditions likely occurring over some east and southeast slopes of the Big Island as well as over a few areas of interior Kauai.

MARINE. A ridge north of the area will maintain light to moderate winds over the area through tomorrow night. Winds will strengthen starting Wednesday as a front moves over the area from the northwest and a strong high builds in behind it.

A new northwest swell is beginning to fill in and will build down the island chain tonight, producing surf above the High Surf Advisory (HSA) threshold along north and west facing shores of the smaller islands tonight through Wednesday. As this swell subsides, a much larger northwest swell is expected to produce surf well above warning levels along north and west facing shores of the smaller islands beginning Wednesday night and holding into Friday. This swell will also produce seas well above the 10-foot Small Craft Advisory (SCA) threshold for most coastal waters and may be large enough to produce advisory level surf along west facing shores of the Big Island. The swell is expected to gradually subside through Friday night.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Morrison AVIATION . Burke MARINE . Morrison


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 13 mi63 min ESE 6 G 7 79°F 84°F1013 hPa
51201 - Waimea Bay, HI (106) 80 mi51 min 77°F7 ft

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI14 mi34 minESE 510.00 miFair78°F70°F76%1013.1 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI15 mi49 minSSW 1010.00 miMostly Cloudy82°F71°F69%1012.5 hPa

Link to 5 minute data for PHBK

Wind History from HBK (wind in knots)
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Last 24hrW5NW7NW6N5N4N4E3NE5NE3E3NE4E4E4E5E5E4SE5SE6S10S11S10S8S8SW10
1 day agoS6SE4SE3SE3CalmE4SE3SE3E3E5E6E5E4E3E4E5SE6S8S8SW9S9SW8SW6W5
2 days agoS6W4NW5SE6E3E3E3SE3E5E5E5E5E5E6E5E5CalmSE6NW33S5S7S74

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Mon -- 02:21 AM HST     1.89 feet High Tide
Mon -- 04:45 AM HST     Moonset
Mon -- 07:04 AM HST     Sunrise
Mon -- 08:58 AM HST     0.51 feet Low Tide
Mon -- 01:38 PM HST     0.91 feet High Tide
Mon -- 04:22 PM HST     Moonrise
Mon -- 05:54 PM HST     Sunset
Mon -- 07:32 PM HST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.71.91.91.71.410.80.60.50.60.70.80.90.90.80.60.40.1-0-00.10.40.9

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Mon -- 01:10 AM HST     1.99 feet High Tide
Mon -- 04:46 AM HST     Moonset
Mon -- 07:05 AM HST     Sunrise
Mon -- 07:32 AM HST     0.51 feet Low Tide
Mon -- 12:27 PM HST     1.01 feet High Tide
Mon -- 04:23 PM HST     Moonrise
Mon -- 05:54 PM HST     Sunset
Mon -- 06:06 PM HST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.921.91.71.310.70.50.50.60.80.9110.80.60.30.1-0.100.20.61.11.5

Weather Map
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wmap_P
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
Wind Forecast for (21,6,7,8)
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Ground Weather Radar Station Kauai, HI
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.