Sunday, August9, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Puako, 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 5:58AMSunset 6:53PM Sunday August 9, 2020 9:40 AM HST (19:40 UTC) Moonrise 11:06PMMoonset 11:07AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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
PHZ121 Alenuihaha Channel- 937 Am Hst Sun Aug 9 2020
.small craft advisory in effect through Monday afternoon...
Rest of today..East winds to 25 knots. Wind waves 8 feet. Isolated showers.
Tonight..East winds to 25 knots. Wind waves 8 feet. Isolated showers.
Monday..East winds to 25 knots. Wind waves 7 feet. Isolated showers.
Monday night..East winds to 25 knots. Wind waves 7 feet. Isolated showers.
Tuesday..East winds to 25 knots. Wind waves 6 feet. Isolated showers.
Tuesday night..East winds 20 knots. Wind waves 7 feet. Isolated showers.
Wednesday..East winds 20 knots. Wind waves 5 feet. Isolated showers.
Thursday..East winds 20 knots. Wind waves 5 feet. SWell northeast 4 to 5 feet. Isolated showers.
PHZ100 937 Am Hst Sun Aug 9 2020
Synopsis for hawaiian coastal waters.. High pressure will remain far north of the islands through the week.


7 Day Forecast for Marine Location Near Puako, HI
   Hourly   EDIT   Help
location: 20.04, -155.83     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 091343 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 343 AM HST Sun Aug 9 2020

SYNOPSIS. A high pressure ridge north of the islands will keep moderate to breezy trade winds in the forecast for the next few days. Wind speeds slowly decrease through the first half of next week. Expect passing showers of the windward and mountain flavor through the week with the highest coverage forecast from the overnight to early morning hours.

DISCUSSION.

Satellite imagery this morning continues to show bands of clouds moving into the islands from the east. These cloud bands will likely support passing early morning showers mainly along windward and mountain slopes of each island with some of the stronger showers drifting into leeward areas.

Elsewhere, a strong high pressure system far north of the Hawaiian Islands will keep moderate to breezy trade winds in the forecast through Monday. Wind speeds will slowly decrease through the first half of next week as the high pressure ridge north of the state weakens and local area pressure gradients decrease. Moderate trade winds will continue through next week Friday. The latest forecast continues to show passing showers each day through the seven day forecast period. Precipitable Water levels range form 1.0 to 1.5 inches and model cross sections support these brief periods of showers. Rainfall coverage will trend higher over windward and areas of each island, especially in the overnight and early morning hours.

Minor adjustments were made to the wind grids this morning with increasing wind speeds over the coastal waters. We expanded the Small Craft Advisory coverage to include coastal waters and channels around Oahu and Kauai. Otherwise global models remain in good agreement with the current weather forecast.

AVIATION. Fresh to locally strong trades will support scattered showers with periods of low ceilings particularly over windward coasts and slopes. Mountain obscuration spread to most of the smaller islands overnight as a band of showery low clouds moved through, prompting an expansion of AIRMET SIERRA to include north through east sections of all the major islands except Lanai. Slightly drier trades are forecast to work into the area later today.

AIRMET TANGO remains in effect below 8000 feet over and immediately south thru west of mountains for tempo moderate turbulence.

AIRMET SIERRA is now in effect above 2500 for the Big Island, Kauai, Oahu, Molokai and Maui.

MARINE. Fresh to strong trade winds will continue into Monday, then trend down Tuesday through midweek as high pressure weakens to the north. Seas will remain at or near the 10 ft advisory level into Monday across the Alenuihaha Channel and over the waters south of the Big Island, then subside Tuesday into midweek. The Small Craft Advisory has been expanded to include most Hawaiian waters through late this afternoon. An extension into tonight for these areas can't be ruled out.

Surf along east facing shores will remain rough into the start of the week due to the gusty trades. Although the surf will lower by midweek as the trades relax locally, an upward trend is possible through the second half of the week. Guidance depicts a decent sized area of strong winds focused at the islands within the 040-050 degree band off the California coast later today through Tuesday, which should correspond to a medium period groundswell out of the northeast arriving around Thursday.

Surf along south facing shores will remain small through the week with mainly a mix of small, short-period southeast and background south-southwest energy moving through.

HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 PM HST Monday for Maalaea Bay- Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters.

Small Craft Advisory until 6 PM HST this evening for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters.



DISCUSSION . Bohlin AVIATION . Powell MARINE . Gibbs


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 0 mi53 min WNW 5.1 G 8.9 81°F 83°F1016.9 hPa
ILOH1 - 1617760 - Hilo, HI 46 mi53 min NNW 5.1 G 5.1 75°F 80°F1018.3 hPa
51206 49 mi58 min 80°F6 ft
KLIH1 - 1615680 - Kahului Bay, Maui, HI 68 mi53 min ENE 12 G 17 78°F 80°F1019.3 hPa

Wind History for Kawaihae, HI
(wind in knots)    EDIT      (on/off)   Help
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
7
AM
8
AM
9
AM
Last
24hr
NW9
W9
W8
W9
W8
W8
W7
SW7
SW6
W4
S5
S3
G6
S5
SW4
G8
SW3
SE2
W8
NE2
NE4
NE3
NE4
N4
N5
NW8
1 day
ago
NW7
W10
W9
W6
SW9
SW9
SW6
SW6
SW6
NW4
W6
G9
W5
NE1
W7
NE2
SW2
G6
E4
G8
NE3
NE3
NE5
G8
NE5
G9
N4
NW8
G11
W7
2 days
ago
W8
W7
SW6
SW4
SW5
SW2
SW3
SW6
S4
SW5
W6
SW8
NE4
NE1
G4
NE2
NW1
N2
NE4
NE2
NE1
NE3
NE2
N3
NW4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bradshaw Army Air Field / Hawaii, HI23 mi43 minSE 15 G 1910.00 miFair73°F34°F24%1016.1 hPa

Link to 5 minute data for PHSF

Wind History from HSF (wind in knots)
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
7
AM
8
AM
9
AM
Last 24hrSE21
G26
SE18
G26
SE21
G29
SE20
G27
SE21
G28
SE20
G27
SE19
G28
SE19
G26
SE20
G24
SE15SE14SE9
G19
E11
G18
NE11NE4CalmE5E7CalmE7E8E3E11
G15
SE15
G19
1 day agoSE8
G17
SE13
G18
SE13
G21
W15SW12
G18
W11
G18
SW11W9SW7SE7E8SE11SE13SE12SE12SE12
G18
SE14
G19
E9
G18
SE16
G23
SE18
G25
SE15
G22
SE16SE17
G24
SE18
G27
2 days agoE15
G22
SE18
G24
E13
G23
E18
G25
E11SW14
G19
W11NW12SE4NW4CalmE3E4E6E5E7E5E7E7E7E7E5SE13
G17
SE13
G18

Tide / Current Tables for Kawaihae, Big Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kawaihae
Click for Map
Sun -- 01:53 AM HST     0.22 feet Low Tide
Sun -- 06:01 AM HST     Sunrise
Sun -- 08:24 AM HST     1.41 feet High Tide
Sun -- 11:07 AM HST     Moonset
Sun -- 01:54 PM HST     0.76 feet Low Tide
Sun -- 06:55 PM HST     Sunset
Sun -- 07:36 PM HST     1.47 feet High Tide
Sun -- 11:05 PM HST     Moonrise
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
0.50.30.20.30.50.81.11.31.41.41.31.10.90.80.80.811.21.31.41.51.41.10.9

Tide / Current Tables for Mahukona, Hawaii Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Mahukona
Click for Map
Sun -- 01:45 AM HST     0.34 feet Low Tide
Sun -- 06:01 AM HST     Sunrise
Sun -- 08:12 AM HST     1.39 feet High Tide
Sun -- 11:07 AM HST     Moonset
Sun -- 01:45 PM HST     0.81 feet Low Tide
Sun -- 06:55 PM HST     Sunset
Sun -- 07:14 PM HST     1.44 feet High Tide
Sun -- 11:05 PM HST     Moonrise
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
0.50.40.30.40.60.91.11.31.41.41.21.10.90.80.80.911.21.41.41.41.31.10.9

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 (15,3,4,5)
      (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.