Tuesday, January21, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Princeville, 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.

Sunrise 7:11AMSunset 6:15PM Tuesday January 21, 2020 1:56 AM HST (11:56 UTC) Moonrise 4:40AMMoonset 3:47PM Illumination 14% Phase: Waning Crescent; Moon at 26 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
    EDIT      (on/off)   Help
PHZ111 Kauai Windward Waters- 935 Pm Hst Mon Jan 20 2020
Tonight..East winds 15 knots. Wind waves 6 feet. North swell 6 feet. Isolated showers.
Tuesday..Southeast winds 10 knots. Wind waves 5 feet. North swell 5 feet. Isolated showers in the morning.
Tuesday night..Winds variable less than 10 knots. Wind waves 4 feet. Northwest swell 4 feet.
Wednesday..Winds variable less than 10 knots. Wind waves 4 feet. Northwest swell 8 feet increasing to 13 feet in the afternoon.
Wednesday night..Winds variable less than 10 knots. Wind waves 3 feet. Northwest swell 14 feet.
Thursday..Winds variable less than 10 knots becoming southwest 10 knots in the afternoon. Wind waves 3 feet. Northwest swell 12 feet.
Thursday night..Winds variable less than 10 knots. Wind waves 3 feet. Northwest swell 11 feet decreasing to 9 feet after midnight.
Friday..Winds variable less than 10 knots becoming northeast 15 knots. Wind waves 3 feet. Northwest swell 10 to 12 feet. Isolated showers.
Saturday..East winds 10 knots. Wind waves 3 to 4 feet. Northwest swell 12 to 14 feet. Scattered showers.
PHZ100 935 Pm Hst Mon Jan 20 2020
Synopsis for hawaiian coastal waters.. High pressure north of the area will move southeast over the next few days, as a front stalls N of the area by midweek. Weakening southeast winds are expected Tuesday, and light and variable winds Wednesday into Friday. Large nw swells will enter hawaiian waters Wednesday and continue through the weekend.


7 Day Forecast for Marine Location Near Princeville, HI
   Hourly   EDIT   Help
location: 22.22, -159.48     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 210635 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 835 PM HST Mon Jan 20 2020

SYNOPSIS. Trade winds will diminish and veer southeast tonight, with daytime sea breezes and overnight land breezes prevailing Tuesday through Friday. Mostly dry pattern expected through the remainder of the work week, with only a few clouds and showers developing over interior and mountain areas each afternoon. A front is expected to stall and weaken near Kauai Friday night, with trades then returning over the weekend.

DISCUSSION. High pressure northeast of Hawaii is moving away to the east as a front approaches from the northwest. Winds will begin to weaken and veer southeasterly by Tuesday as the front forces the ridge associated with the high over the state, allowing a land and sea breeze regime to setup through Friday. Rain chances will remain limited due to the dry air and strong subsidence expected to continue through this time period. The best chance for a few clouds and light showers will shift over interior areas through the afternoon hours each day. The front will pass well north of our area on Wednesday and will not have any direct impacts to the islands.

A second front will follow during the second of the work week and keep the ridge on top of Hawaii, and our winds light. The front is expected to dissipate as it reaches Kauai late Friday and bring a brief uptick in showers for the northern end of the state Friday night. Trade winds may briefly return Saturday as a bubble high quickly passes north of the state before the winds lighten and shift southeasterly again Sunday ahead of another passing front to the north.

AVIATION. Winds have diminished and will continue to weaken overnight into Tuesday with a relatively weak surface high east-northeast of Hawaii that continues to move away from Hawaii. Northeast trade winds will shift to a more east/southeast direction for most of the state. The winds will be weak enough to create a daytime sea breeze/nighttime land breeze scenario from tonight through Tuesday. The state will also have dry conditions with only a few isolated mauka showers possible through this period. Since the winds will be light and the most of the state is expected to be dry or only have a few isolated showers, no AIRMETs are in effect or expected through Tuesday.

MARINE. High pressure to the north will maintain breezy trade winds tonight before dropping on Tuesday. A Small Craft Advisory (SCA) is currently posted for the windier waters around Maui County and the Big Island due to a combination of breezy trade winds and rough seas. The high will move east over the next couple of days allowing for lighter winds to push across the islands from west to East Tuesday, and then remain light and variable into Friday. A large northwest swell will increase seas above SCA levels starting Wednesday. A new high will bring trade winds back over the weekend.

A current NNW swell is on its way down and will diminish further through Tuesday. A large, long period northwest swell is expected to arrive Tuesday night, peak Wednesday night, then lower into Friday. Latest guidance indicates that surf heights will reach High Surf Warning levels along most north and west facing shores during the peak of this swell. A second large northwest swell is expected to build late Friday, peak on Saturday, then lower through Sunday. Warning level surf is also expected during the peak of this swell.

Small background south swells will remain through the weekend. With the expected drop off in trade winds over the next few days, short period choppy surf will diminish along east facing shorelines. Some south and east facing shores may see localized higher surf from the large northwest swells refracting around islands and reefs.

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



DISCUSSION . Foster AVIATION . Chevalier MARINE . Morrison


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 20 mi62 min 74°F 79°F1019.9 hPa
51201 - Waimea Bay, HI (106) 82 mi50 min 73°F7 ft
51WH0 - WHOTS - Woods Hole Ocean Time-series 87 mi86 min ESE 12 75°F1020.2 hPa

Wind History for Nawiliwili, HI
(wind in knots)    EDIT      (on/off)   Help
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
NE12
G17
NE11
NE11
NE10
NE9
G12
NE5
G8
NE10
G13
NE8
G12
NE12
G18
NE9
G13
NE11
G14
NE8
NE8
G12
NE13
NE9
N6
E12
E13
NE11
G14
E13
G16
E14
E13
G16
E15
E13
1 day
ago
NE12
G19
NE10
G14
NE14
G23
NE8
G14
NE14
G20
N9
G13
NE9
G13
NE17
G21
NE11
G17
NE15
NE14
G17
NE11
G15
NE11
G15
NE11
G16
NE9
G16
NE13
NE11
G15
NE11
G14
NE12
NE13
G17
NE7
G10
NE12
G15
NE10
NE11
2 days
ago
N8
G17
N11
G16
NE11
G15
NE11
G14
NE11
G16
NE11
G18
NE13
G16
NE15
G19
NE15
G20
NE15
G20
NE10
G13
NE16
G20
N13
G16
NE10
G15
NE11
G17
NE15
G23
N11
G15
NE11
G17
NE16
N10
G16
NE12
G19

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI18 mi63 minE 1410.00 miMostly Cloudy73°F66°F81%1020 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI19 mi60 minN 010.00 miMostly Cloudy71°F60°F68%1019.6 hPa

Link to 5 minute data for PHLI

Wind History from HLI (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrNE14NE13NE12NE12NE11NE10NE13NE12NE10NE10NE11NE9NE9NE12NE9N7E11E12E12E14E12E13E13E14
1 day agoNE20NE15NE22
G26
NE11NE18NE12NE14NE18
G26
NE13NE15NE14NE16NE14NE16NE14NE14E14NE13NE14NE13NE13NE15NE14NE14
2 days agoNE17N14NE16N15N18NE17NE17NE19
G23
NE17NE15NE15NE17--NE13NE19N17
G22
NE15
G24
NE21
G25
NE21
G27
NE20NE21NE18
G26
NE16NE17
G26

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hanalei Bay
Click for Map
Tue -- 12:51 AM HST     2.23 feet High Tide
Tue -- 04:40 AM HST     Moonrise
Tue -- 07:19 AM HST     Sunrise
Tue -- 07:58 AM HST     0.33 feet Low Tide
Tue -- 12:20 PM HST     0.65 feet High Tide
Tue -- 03:47 PM HST     Moonset
Tue -- 05:32 PM HST     -0.11 feet Low Tide
Tue -- 06:19 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.22.22.11.81.40.90.60.40.30.40.50.60.60.60.50.30.1-0.1-0.10.10.40.81.31.7

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Hanamaulu Bay
Click for Map
Tue -- 02:02 AM HST     2.13 feet High Tide
Tue -- 04:39 AM HST     Moonrise
Tue -- 07:18 AM HST     Sunrise
Tue -- 09:24 AM HST     0.33 feet Low Tide
Tue -- 01:31 PM HST     0.55 feet High Tide
Tue -- 03:47 PM HST     Moonset
Tue -- 06:19 PM HST     Sunset
Tue -- 06:58 PM HST     -0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.722.121.81.410.70.50.30.30.40.50.50.50.40.30.1-0-0.1-00.20.61.1

Weather Map
       (on/off)   Help Weather Map
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 (6,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Kauai, HI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.