Tuesday, January28, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Holualoa, 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 6:55AMSunset 6:11PM Tuesday January 28, 2020 6:22 AM HST (16:22 UTC) Moonrise 9:44AMMoonset 9:44PM Illumination 13% Phase: Waxing Crescent; Moon at 4 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
PHZ123 Big Island Leeward Waters- 330 Am Hst Tue Jan 28 2020
Today..West of the big island, northeast winds 10 knots in the morning becoming variable less than 10 knots. NEar south point, east winds 20 knots. Wind waves 7 feet. Northwest swell 5 feet.
Tonight..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 6 feet. Northwest swell 5 feet. Isolated showers.
Wednesday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 7 feet. Northwest swell 6 feet. Isolated showers in the morning.
Wednesday night..Winds variable less than 10 knots west of the big island...east 15 knots near south point. Wind waves 7 feet. Northwest swell 7 feet. Isolated showers.
Thursday..West of the big island, winds variable less than 10 knots becoming northwest 10 knots in the afternoon. NEar south point, east winds 15 knots. Wind waves 6 feet. Northwest swell 6 feet. Isolated showers in the morning.
Thursday night..Winds variable less than 10 knots west of the big island...east 15 knots near south point. Wind waves 6 feet. Northwest swell 6 feet.
Friday..Winds variable less than 10 knots west of the big island...east 15 knots near south point. Wind waves 6 feet. Northwest swell 6 to 7 feet. Isolated showers.
Saturday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 6 to 8 feet. Northwest swell 6 to 7 feet. Isolated showers.
PHZ100 330 Am Hst Tue Jan 28 2020
Synopsis for hawaiian coastal waters.. A ridge will move south over the islands as a front passes well to the north of the state. The ridge will then persist in the local area through most of the week. A more robust front may approach the state Thursday night into Friday.


7 Day Forecast for Marine Location Near Holualoa, HI
   Hourly   EDIT   Help
location: 19.65, -156     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 281332 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 332 AM HST Tue Jan 28 2020

SYNOPSIS. Benign weather conditions will persist over the next few days as a ridge sits just north of Kauai. Light winds will persist over Kauai and Oahu while southeast trade winds are expected over Maui County and the Big Island. An approaching front will push the ridge over the state Wednesday night and Thursday bringing light winds across the islands. The front will likely bring wet and unsettled weather to portions of the state Friday and early Saturday as trades rebuild.

DISCUSSION.

High pressure centered off the California coast is extending a surface ridge to the area just north of Kauai. The placement of the ridge close to the islands has veered our trade winds from the east southeast. Moderate trades will remain into Wednesday over the Big Island and Maui County but Kauai and Oahu will see light winds as the Big Island blocks the southeast flow. Expect afternoon seabreezes and nighttime land breezes over Kauai and Oahu with limited afternoon clouds and showers over interior sections. The rest of the state will maintain limited windward showers.

An upper level ridge is keeping a cap on any convection over the islands, and hence the limited showers forecasted over the next few days. The upper ridge will move aside later this week as an upper trough approaches Thursday bringing instability edging in from the northwest Thursday night and Friday. A surface front associated with the upper trough will push the surface ridge over the state by Thursday, cutting off island trades and allowing widespread afternoon sea breezes and nighttime downslope flow.

Wet and unsettled weather is expected as the instability increases and the front brings enhanced moisture to the area Thursday night and Friday. The front is forecast to stall somewhere between Kauai and Oahu Friday afternoon while high pressure behind the front reinvigorates our northeast trade winds. As the frontal moisture, instability, and island terrain interact there may be a possibility for heavy showers especially over the western end of the state. The greatest potential for wet and unsettled conditions will be over windward areas, especially near the stalled front.

Uncertainty on shower coverage lingers heading into the weekend, while it appears that moderate trade winds will prevail. The latest runs of the GFS and ECMWF wash out the front and lift it northward, perhaps leaving some shallow moisture behind to fuel wet trades on Saturday. Both models suggest mid level ridging will build overhead on Sunday as trade winds hold, favoring a typical pattern of windward rainfall.

AVIATION. A large mass of broken low clouds with some embedded showers will likely affect the windward side of the Big Island this morning, including the Kau district. Even windward Maui may see some increasing clouds later this morning. Models though are suggesting most of this mass to dissipate as they spread westward this morning. AIRMET Sierra for mountain obscuration is not expected. Other than for weakening trades over the Big Island and east Maui, a light southeast flow will prevail elsewhere. This weak flow will lead to sea breezes to the lee areas of the remaining islands. Add on daytime heating will result in some spotty afternoon clouds. A low level inversion of around 6 to 7k feet, though, will limit these clouds to brief isolated light showers. The windward side of the remaining islands can also expect a shower or two, carried in by the southeast wind. Brief MVFR ceilings may occur with this showers with no restrictions to vis.

MARINE. A ridge of high pressure north of the area will slowly move south as a front passes north of the state. Winds are expected to be 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. A shift in the weather pattern is possible Thursday night into Friday as a stronger front approaches from the northwest.

The current northwest swell continues to gradually decrease. It has declined sufficiently this morning so that the High Surf Advisory was able to be cancelled. And the Small Craft Advisory was dropped as well, as winds have decreased below 25 knots in the waters around the Big Island.

A progressive weather pattern will keep surf elevated along north and west facing shores. The next northwest swell is expected to arrive tonight and peak at solid advisory levels by Wednesday morning. A larger, potentially warning level, northwest to north- northwest swell is expected towards the end of the week.

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 are expected to return.

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. None.



DISCUSSION . Morrison AVIATION . H Lau MARINE . Kinel


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
KWHH1 28 mi52 min 70°F 78°F1018.2 hPa
ILOH1 - 1617760 - Hilo, HI 50 mi52 min 68°F 78°F1018.4 hPa
KLIH1 - 1615680 - Kahului Bay, Maui, HI 90 mi58 min 69°F 77°F1018.6 hPa

Wind History for Kawaihae, HI
(wind in knots)    EDIT      (on/off)   Help
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
2
AM
3
AM
4
AM
5
AM
Last
24hr
E2
N3
S2
NW6
NW5
W6
W9
W8
SW5
W4
W4
W3
W3
S3
NE2
NE2
NE5
N4
NE3
S1
G4
SE3
E4
NE4
NE1
1 day
ago
NE4
N4
SW4
SW4
W3
W4
NW7
W8
W4
W4
W4
W3
W3
N1
NE3
N2
E1
G4
E1
NE3
NE3
NE3
NE4
N1
G4
NE2
2 days
ago
NE3
NE2
NE1
W3
W6
W6
SW4
W5
SW5
W5
W4
SW4
SW2
W4
W3
NE4
NE4
NE4
NE4
NE3
NE4
NE4
NE4
E3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kailua / Kona, Keahole Airport, HI0 mi29 minENE 510.00 miFair69°F61°F76%1018.3 hPa

Link to 5 minute data for PHKO

Wind History from HKO (wind in knots)
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
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrNE13E3SE7SW6W9W8W7SW7SW9SW9S10S10S8SE5E5NE3N5N6N5NE6NE5NE5E4E5
1 day agoCalmSE6Calm3W6NW6W7S9S9SW10S9S8S6S4S3NW3NW4NE6NE3NE3N8NE56E6
2 days agoNE9NE7N5CalmS10W9W11W7W8SW9SW8S7S6S5CalmN5N4N5N4NE4E5E4E4E5

Tide / Current Tables for Kailua Kona, Big Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kailua Kona
Click for Map
Tue -- 05:55 AM HST     1.93 feet High Tide
Tue -- 07:00 AM HST     Sunrise
Tue -- 09:43 AM HST     Moonrise
Tue -- 01:01 PM HST     0.14 feet Low Tide
Tue -- 06:13 PM HST     Sunset
Tue -- 06:32 PM HST     0.95 feet High Tide
Tue -- 09:44 PM HST     Moonset
Tue -- 11:42 PM HST     0.35 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
0.30.50.81.21.61.91.91.81.61.20.80.50.20.10.20.40.60.80.90.90.80.70.50.4

Tide / Current Tables for Kawaihae, Big Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Kawaihae
Click for Map
Tue -- 06:19 AM HST     2.16 feet High Tide
Tue -- 06:59 AM HST     Sunrise
Tue -- 09:43 AM HST     Moonrise
Tue -- 01:13 PM HST     0.18 feet Low Tide
Tue -- 06:12 PM HST     Sunset
Tue -- 06:52 PM HST     1.19 feet High Tide
Tue -- 09:43 PM HST     Moonset
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
0.20.40.81.21.622.22.11.91.510.60.30.20.20.40.711.11.21.10.90.70.5

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 (11,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Kohala, 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.