Sunday, January26, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Laupahoehoe, 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 6:10PM Sunday January 26, 2020 1:08 AM HST (11:08 UTC) Moonrise 8:24AMMoonset 7:57PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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
PHZ122 Big Island Windward Waters- 948 Pm Hst Sat Jan 25 2020
.small craft advisory in effect through Sunday afternoon...
Rest of tonight..East winds 20 knots. Wind waves 5 feet. Northwest swell 12 feet. Isolated showers.
Sunday..East winds 15 knots. Wind waves 5 feet. Northwest swell 11 feet. Isolated showers.
Sunday night..East winds 15 knots. Wind waves 5 feet. Northwest swell 10 feet. Isolated showers.
Monday..East winds 20 knots. Wind waves 6 feet. Northwest swell 8 feet. Isolated showers.
Monday night..Southeast winds 20 knots. Wind waves 6 feet. Northwest swell 7 feet. Isolated showers in the evening, then scattered showers after midnight.
Tuesday..East winds 15 knots. Wind waves 6 feet. Northwest swell 7 feet. Scattered showers in the morning.
Tuesday night..East winds 15 knots. Wind waves 6 feet. Northwest swell 7 feet. Isolated showers.
Wednesday..Southeast winds 20 knots. Wind waves 6 feet. Northwest swell 7 to 8 feet. Isolated showers.
Thursday..Southeast winds 15 knots. Wind waves 4 to 6 feet. Northwest swell 8 feet. Scattered showers.
PHZ100 948 Pm Hst Sat Jan 25 2020
Synopsis for hawaiian coastal waters.. A ridge of high pressure north of the state will keep trade winds in place through Monday. A passing front north of the area will then shift the ridge over the hawaiian waters and persist through most of next week. The current large northwest swell will peak tonight, then gradually lower through early next week.


7 Day Forecast for Marine Location Near Laupahoehoe, HI
   Hourly   EDIT   Help
location: 20.8, -154.34     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 260701 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 901 PM HST Sat Jan 25 2020

SYNOPSIS. Dry weather and moderate trade winds will continue through Monday morning, with a few light showers favoring windward areas. The winds will then shift southeasterly Monday afternoon through Thursday as a series of cold fronts approach from the northwest, with daytime sea breezes and overnight land breezes becoming common across most of the smaller islands. Rather dry conditions will prevail through much of the work week, although a few light showers will continue to trickle into windward sections of the eastern islands, and a few cloud build ups and interior showers will be possible across the island interiors each afternoon. A strong cold front will move into the islands Friday into next weekend, potentially bringing a wet and unsettled weather pattern to portions of the state.

DISCUSSION. Currently at the surface, a 1026 mb high is centered well east- northeast of the state, with the ridge axis extending westward to a location around 275 miles north of Kauai. The resulting gradient is producing light to moderate trade winds across the island chain this evening. Infrared satellite imagery shows clear to partly cloudy skies in place, with a few pockets of enhanced cloud cover over windward slopes. Radar imagery shows very little shower activity, with just a few light showers moving into windward sections of the smaller islands. Main short term concern revolves around the trade wind trends.

The surface ridge will remain north of the island chain tonight through Tuesday, before sliding southward and over the state Wednesday and Thursday. The first in a series of cold fronts will approach from the northwest through the first half of the work week, with the second and stronger cold front moving into the western islands Friday, then stalling somewhere across the western or central islands next weekend. Moderate trade winds are expected to prevail through Monday morning, with the strongest trades across the eastern islands which will be further away from the ridge axis. Boundary layer winds begin to shift around to the southeast Monday afternoon, and will hold in this general direction through much of the work week. This will keep moderate east-southeast to southeast winds in place across the eastern end of the state, while most of the smaller islands see light and variable winds featuring daytime sea breezes and overnight land breezes. Strong trade winds should return from northwest to southeast down the island chain late Friday into next weekend as a strong high builds in behind the cold front progressing down the island chain.

Rather dry weather will prevail across the islands through late in the work week, as precipitable water values hold generally at or below 1 inch and low/mid level ridging persists over the region. A few light showers will be confined primarily to windward areas tonight through Monday morning. By Monday afternoon, we should begin to see a few cloud buildups and interior showers develop as sea breezes become more common. This pattern featuring a few cloud build ups and showers over the island interiors will then hold in place through Thursday, although some windward showers will continue across the eastern islands in areas favored under east-southeasterly to southeasterly flow. We will likely begin to see some jet cirrus begin to spread across the islands on Wednesday as well, it's difficult to know how thick this will be at the moment, but it does appear to thicken up a bit Wednesday night and Thursday. More unsettled weather appears to be heading this way beginning Thursday night or Friday, and holding into next weekend as the stronger of the two fronts enters the islands. Although the models differ on the specifics, it appears that some wet weather is in store for at least portions of the state, particularly windward locales Friday and next Saturday.

AVIATION. A ridge of high pressure to the north of the islands will persist through twenty-four hours and beyond. Light to locally moderate trade winds will continue to carry bands of low topped cumulus and stratocumulus towards north and east facing slopes and coasts. Isolated MVFR CIG and VIS are to be expected in passing showers. Otherwise VFR conditions will prevail all areas.

MARINE. A ridge of high pressure north of the area will sustain moderate to locally breezy trade winds across most coastal waters through Monday. Beyond that time frame, a couple of fronts approaching the area from the northwest through next week will weaken the winds and turn them toward the east and southeast.

The current northwest swell continues to remain elevated this evening, and a High Surf Warning remains in effect for exposed north and west facing shores of the smaller islands through Sunday and a High Surf Advisory for west facing shores of the Big Island through Sunday night. Latest buoy readings from NOAA buoy 51101 and 51001 continue to show swell heights of between 13 feet to 16 feet with a period of about 16 seconds as of 8 pm this evening. With an average travel time from these buoy to Oahu of around 11 hours, this would suggest extra large breakers continuing for Oahu and Maui County through at least the morning hours on Sunday. The swell is expected to gradually drop during the day Sunday with surf dropping to advisory levels by Sunday night or Monday.

A Small Craft Advisory is in effect for all Hawaiian waters except Maalaea Bay through Sunday due to a combination of winds and large seas from the northwest swell. Some marine zones will likely hold on to SCA level seas into early next week.

Surf will remain elevated along north and west facing shores as a progressive weather pattern across the northern Pacific keeps a series of large northwest swells moving through the islands, at least through the middle to latter part of next week. The next northwest swell is expected to arrive Tuesday night from a large fetch of gales currently blowing in the northwest Pacific. Latest model guidance is suggesting the swell to peak at high end advisory levels sometime on Wednesday.

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.

Surf along south facing shores will remain small through next week. A couple background south swells expected over the weekend and again on Tuesday should be enough to keep things from going flat.

HFO WATCHES/WARNINGS/ADVISORIES. High Surf Warning until 6 PM HST Sunday for Niihau-Kauai Windward-Kauai Leeward-Waianae Coast-Oahu North Shore-Oahu Koolau-Molokai-Maui Windward West-Maui Central Valley-Windward Haleakala.

High Surf Advisory until 6 AM HST Monday for Kona-Kohala.

Small Craft Advisory until 6 PM HST Sunday for all Hawaiian waters except Maalaea Bay-



DISCUSSION . Jelsema AVIATION . Bedal MARINE . Kino


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
ILOH1 - 1617760 - Hilo, HI 83 mi51 min SSW 1.9 G 4.1 66°F 79°F1019.7 hPa

Wind History for Hilo, Hilo Bay, Kuhio Bay, HI
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
Last
24hr
S1
S1
W4
SW2
NE6
W7
SW2
W3
--
NE2
E6
G10
NE5
NE6
NE5
NE4
NE4
NE4
NE2
SE2
SW1
SW2
SW2
SW2
S3
1 day
ago
SW1
W1
S1
SW1
S2
SW3
SW2
SW2
W2
N2
E7
SE4
G7
NE4
G8
E5
G9
SE6
G9
SE3
G8
SE3
--
SW1
W1
SW1
SW1
W1
SW1
2 days
ago
S2
SW2
S2
SW3
W1
S2
SE5
E5
G9
E1
G6
NE6
NE4
NE2
G6
N4
G7
NE3
G6
NW4
G7
SW1
S2
S1
SW1
S2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hilo, Hilo International Airport, HI84 mi16 minSW 610.00 miFair67°F57°F73%1021.1 hPa

Link to 5 minute data for PHTO

Wind History from HTO (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 24hrSW5SW4SW4CalmN4SW5W4W3CalmE11E6NE8NE6NE4NE34N3CalmCalmSW4CalmSW4SW4SW6
1 day agoSW3CalmSW4SW5SW5SW4CalmSW3CalmE10E7E6E9E8SE8S4CalmCalmCalmSW3SW3SW3SW3S3
2 days agoSW4SW6SW7SW7SW7SW7SW6SW5SW5E5E84E56NE8NE5N4CalmNE5SW3SW4CalmSW4SW3

Tide / Current Tables for Hilo, Hawaii Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hilo
Click for Map
Sun -- 04:11 AM HST     2.68 feet High Tide
Sun -- 06:56 AM HST     Sunrise
Sun -- 08:25 AM HST     Moonrise
Sun -- 11:26 AM HST     0.27 feet Low Tide
Sun -- 04:20 PM HST     1.31 feet High Tide
Sun -- 06:08 PM HST     Sunset
Sun -- 08:01 PM HST     Moonset
Sun -- 09:37 PM HST     0.20 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
11.62.12.52.72.62.31.81.30.80.50.30.30.50.91.11.31.31.10.80.50.20.20.4

Tide / Current Tables for Hilo, Hilo Bay, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Hilo
Click for Map
Sun -- 04:28 AM HST     2.78 feet High Tide
Sun -- 06:56 AM HST     Sunrise
Sun -- 08:25 AM HST     Moonrise
Sun -- 11:02 AM HST     0.48 feet Low Tide
Sun -- 04:04 PM HST     1.49 feet High Tide
Sun -- 06:08 PM HST     Sunset
Sun -- 08:01 PM HST     Moonset
Sun -- 09:59 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
0.61.31.92.52.72.72.521.40.90.60.50.60.81.11.41.51.41.10.70.30-0.10

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 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.