Tuesday, January22, 2019 L-36.com


Marine Weather and Tides
Nanawale Estates, HI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:56AMSunset 6:07PM Tuesday January 22, 2019 3:20 AM HST (13:20 UTC) Moonrise 8:10PMMoonset 8:24AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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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PHZ122 Big Island Windward Waters- 940 Pm Hst Mon Jan 21 2019
Rest of tonight..East winds 15 knots. Wind waves 4 feet. Mixed swell northwest 4 feet and east 4 feet. Isolated showers.
Tuesday..East winds 20 knots. Wind waves 4 feet. Mixed swell northwest 5 feet and east 4 feet. Isolated showers in the morning.
Tuesday night..East winds 15 knots. Wind waves 4 feet. Mixed swell northwest 7 feet and east 5 feet. Scattered showers.
Wednesday..East winds 15 knots. Wind waves 3 feet. Mixed swell northwest 9 feet and east 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Wednesday night..East winds 15 knots. Wind waves 3 feet. Mixed swell northwest 9 feet and east 5 feet. Scattered showers.
Thursday..East winds 10 knots. Wind waves 3 feet. Northwest swell 9 feet and east 4 to 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Thursday night..East winds 10 knots. Wind waves 3 feet. Northwest swell 8 feet and east 4 feet. Isolated showers.
Friday..East winds 10 knots in the morning becoming variable less than 10 knots, then becoming north 10 knots. Wind waves 3 feet. Northwest swell 8 to 9 feet and east 4 feet. Scattered showers.
Saturday..North winds 15 knots. Wind waves 4 feet. Northwest swell 8 to 9 feet and east 3 to 4 feet. Scattered showers.
PHZ100 940 Pm Hst Mon Jan 21 2019
Synopsis for hawaiian coastal waters.. A ridge of high pressure over the small islands will move slightly north through Tuesday and hold through Thursday. A front will reach kauai late Friday afternoon, ushering in some strengthening northeast winds to the area. The weaken front will move east of the big island by Saturday night.


7 Day Forecast for Marine Location Near Nanawale Estates, HI
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location: 19.49, -154.81     debug


Area Discussion for -
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Fxhw60 phfo 220655
afdhfo
area forecast discussion
national weather service honolulu hi
830 pm hst Mon jan 21 2019

Synopsis
Stable conditions will prevail through Thursday as a ridge persists
in the island vicinity. Showers carried by the south to east wind
flow will affect the windward areas at times, while afternoon clouds
and a few showers will develop over the islands under daytime sea
breezes, and partial clearing at night under land breezes. A front
is expected to bring an increase in showers Friday into Saturday,
with cooler condition spreading across the islands.

Discussion
Fair weather prevails across the state this evening, and will
continue through Thursday as a ridge of high pressure persists in
the island vicinity, bringing stable and light southerly winds. A
land and sea breeze regime will reign under the light southerly
winds, with a few clouds and showers developing over the islands
each afternoon, followed by mostly clear conditions overnight and in
the morning hours. The light southeast background winds will carry
some clouds and showers from the east, reaching the windward areas
of the islands at times. Rainfall amounts will be low.

The next front is still expected to reach the islands Friday into
Saturday. Latest forecast solutions still indicated this front
passing down the island chain will be weak, as the main upper level
support with this system stays northeast and east of the area. There
will be enough moisture associated with the front to bring a period
of showers, especially along windward areas and north facing slopes.

Behind the front, northeasterly winds should usher in a cool air
mass with dew points dropping into the upper 50s.

Aviation
A deep-layer ridge over the islands will promote a mostly dry and
stable atmosphere, with limited cloud and shower coverage. A surface
ridge over the islands will drift N through Tuesday as a stalled
front just N of kauai dissipates. Light winds will prevail over
kauai and oahu, while light to moderate ese winds are expected over
maui county and the big island.VFR conditions will continue to
prevail statewide, and no airmets are anticipated.

Marine
A stalled front just northwest of kauai is slated to move north
shortly and dissipate over the far northern offshore waters on
Tuesday. This opens up the opportunity for a ridge over the smaller
islands to move north slowly through Tuesday, resulting in winds
backing to the east and southeast across the main hawaiian islands
by Tuesday night. Another front is expected to enter the far
northwest offshore waters Thursday evening. The front is expected to
fall apart as it reaches kauai late Friday afternoon. Strong and
gusty northeast winds follows immediately behind the front Friday
night through Saturday morning before easing off moderate to locally
strong. A gale low is forecast to form along this front 750 nm
north- northeast of the islands over the weekend, with the trailing
nearly stationary front draped across the far and southern offshore
waters. At the same time, another front is expected to stall and
fall apart just west of our far western offshore waters. This setup
will keep the islands under a moderate to strong north to northeast
wind flow.

What appears to be the new northwest swell peaked at buoy 51101
earlier today. The start of an extended period of a reinforcing
west- northwest swell of 300 to 310 degrees, is expected to reach
this buoy later tonight. This swell will continue to build through
Tuesday. As for our islands, this swell will reach kauai early
Tuesday evening, and peak Wednesday at 10 to 11 feet and 16 seconds.

A reinforcing west-northwest pulse arrives Thursday night, peak
early Friday, followed by a gradually drop through the upcoming
weekend. This translate to an extended period of advisory-level
surf to near warning levels, for north and west facing shores, late
Tuesday night through Wednesday, then again Thursday night through
Friday.

From this direction, the swell will reach the kona coast, from kona
to south point Tuesday night, the swell and surf will peak
Wednesday, followed by the second pulse Friday and Friday night,
thus maintaining advisory level surf in the process.

The occurrence of the gale low north-northeast of the islands over
the coming weekend, will lead to slight bump along the exposed north
and east facing shores early next week. Before this happens, a
slight rise is expected along the east facing shores Wednesday into
the second half of the week due to a pocket of fresh to strong winds
upstream of the state. Surf along south facing shores will remain
near the seasonal average through the week with mainly background
short- period southeast trade wind swell energy.

Hfo watches warnings advisories
None.

91.22.84.05


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ILOH1 - 1617760 - Hilo, HI 21 mi45 min SW 6 G 8 68°F 75°F1017 hPa

Wind History for Hilo, Hilo Bay, Kuhio Bay, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hilo, Hilo International Airport, HI21 mi28 minWSW 710.00 miA Few Clouds65°F55°F73%1017.1 hPa

Wind History from HTO (wind in knots)
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2 days agoSW5SW5SW6SW6CalmW3N6N5N5NE7NE7E7E7E6SE3CalmSW3SW3SW6SW6SW6SW5SW4SW6

Tide / Current Tables for Hilo, Hilo Bay, Kunio Bay, Hawaii Island, Hawaii
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Honuapo, Hawaii Island, Hawaii
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Honuapo
Click for Map
Tue -- 04:48 AM HST     3.02 feet High Tide
Tue -- 06:58 AM HST     Sunrise
Tue -- 08:26 AM HST     Moonset
Tue -- 12:06 PM HST     0.08 feet Low Tide
Tue -- 05:05 PM HST     1.38 feet High Tide
Tue -- 06:09 PM HST     Sunset
Tue -- 08:14 PM HST     Moonrise
Tue -- 10:34 PM HST     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.61.21.92.52.932.82.41.81.10.60.20.10.20.50.91.21.41.310.70.30.10

Weather Map and Satellite Images
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GOES 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.
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Wind Forecast for (8,2,3,4)
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Ground Weather Radar Station South Shore, 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.