Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Laie, HI

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:12AMSunset 6:56PM Saturday August 24, 2019 1:19 AM HST (11:19 UTC) Moonrise 12:29AMMoonset 2:03PM Illumination 36% Phase: Waning Crescent; Moon at 24 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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PHZ114 Oahu Windward Waters- 939 Pm Hst Fri Aug 23 2019
Rest of tonight..East winds 20 knots. Wind waves 6 feet. SWell northwest 3 feet. Scattered showers early in the evening, then isolated showers after midnight.
Saturday..East winds 20 knots. Wind waves 6 feet. Isolated showers.
Saturday night..East winds 20 knots. Wind waves 6 feet. Scattered showers.
Sunday..East winds 20 knots. Wind waves 6 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Sunday night..East winds 20 knots. Wind waves 6 feet. Isolated showers in the evening, then scattered showers after midnight.
Monday..East winds 15 knots. Wind waves 6 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Monday night..East winds 15 knots. Wind waves 5 feet. Isolated showers in the evening, then scattered showers after midnight.
Tuesday..East winds 10 knots. Wind waves 4 feet. Southwest swell 3 feet. Scattered showers.
Wednesday..East winds 10 knots. Wind waves 3 feet. Southwest swell 3 feet. Scattered showers.
PHZ100 939 Pm Hst Fri Aug 23 2019
Synopsis for hawaiian coastal waters.. High pressure north of the area will maintain moderate to locally strong trade winds through early next week, then trend lighter towards the middle of next week as the high weakens.


7 Day Forecast for Marine Location Near Laie CDP, HI
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location: 21.65, -157.93     debug


Area Discussion for -
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Fxhw60 phfo 240644
afdhfo
area forecast discussion
national weather service honolulu hi
844 pm hst Fri aug 23 2019

Synopsis
A high north of the area will move northeast slowly and maintain locally
breezy easterly trade winds through the weekend. A band of showery low
clouds will move west over the smaller islands tonight. Another area
of showers may spread over the area tomorrow. Winds will weaken next
week as the high moves farther away and rainfall will likely be sparse.

Discussion
The latest surface analysis shows a 1025 mb surface high about
1000 miles north of the area near 36n165w. The pressure gradient
south of the high is maintaining locally breezy easterly trade
winds over the main hawaiian islands.

A 220 mile wide area of showery low clouds is moving west at about
15 mph across the islands. As of 8 pm, the west edge of the clouds
was over kauai and the east edge was over maui. Radars show
numerous showers in this cloud area. As the cloud area continues
moving west, showers will subside over maui county this evening,
oahu later tonight and kauai county early Saturday morning.

The global models show an area of increased moisture moving
toward the islands from the southeast that is likely to produce
another increase in showers, especially for the windward side of
the big island, on Saturday.

The global models are in good agreement showing the high north of
the area moving northeast slowly. As the high moves away, the
pressure gradient over the islands will become looser and the
trade winds will weaken. Wind speeds will likely become gentle to
moderate by Tuesday and remain at that strength through the rest
of the week. Moisture will remain rather low and ridging aloft
will keep the atmosphere stable so rainfall will be sparse through
next Friday.

Aviation
A high north of the hawaiian islands will keep moderate to breezy
trade winds in the forecast through the weekend. A low level
trough passing through the western half of the state tonight will
produce periods of MVFR ceilings and scattered to numerous showers
from molokai to kauai. These low cloud ceilings and showers will
favor the north and east slopes of the western islands, and
gradually decrease in coverage from east to west through the night.

Two airmets remain in effect. Airmet sierra for tempo mountain
obscuration along north and east slopes of molokai, lanai, oahu,
and kauai. Airmet tango for low level moderate turbulence south
through west of all islands. Airmet sierra will decrease in
coverage later tonight, while airmet tango will likely remain in
effect through at least Saturday.

Marine
High pressure to the north will maintain moderate to locally strong
easterly trades through the weekend. A small craft advisory (sca)
is posted through Sunday for the windy waters around maui and the
big island. The high will move northeast slowly, relaxing the
pressure gradient over the area early next week, resulting in
lighter trades toward the middle of next week.

A surface trough, oriented northeast through southwest across the
far northwestern offshore waters this evening is forecast to move
west the rest of tonight, moving west of the far west and northwest
offshore waters by sunrise Saturday.

Only background south swell energy is expected over the weekend
into early next week. A larger, longer period southwest swell is
expected to arrive Tuesday and peak Wednesday or Thursday near
advisory levels.

A northwest swell will maintain small surf along the north and
west facing shores over the weekend. Meanwhile, the stronger
trades on tap for the weekend will lead to a slight rise in the
surf along the east facing shores. This trade wind swell will
trend lower the middle of next week as the trades become weaker,
resulting in lower surf. The strong trades will cause rough and
choppy water conditions, especially along east facing shores over
the weekend and into early next week.

Hfo watches warnings advisories
Small craft advisory until 6 pm Sunday for maalaea bay, the
pailolo and alenuihaha channels and waters south of the big
island.

Discussion... Donaldson
aviation... Bohlin
marine... H lau


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51201 - Waimea Bay, HI (106) 10 mi38 min 78°F5 ft
51207 15 mi50 min 82°F6 ft
51210 15 mi50 min 82°F6 ft
MOKH1 - 1612480 - Mokuoloe, HI 17 mi44 min E 9.9 G 16 81°F 85°F1014.8 hPa
51202 - Mokapu Point, HI (098) 21 mi20 min 82°F6 ft
51211 24 mi50 min 82°F3 ft
OOUH1 - 1612340 - Honolulu, HI 24 mi56 min E 2.9 G 8.9 81°F 82°F1014.5 hPa
51212 25 mi50 min 83°F3 ft

Wind History for Mokuoloe, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wheeler Air Force Base / Oahu, HI13 mi24 minE 310.00 miMostly Cloudy76°F71°F88%1013.5 hPa
Kaneohe, Marine Corps Air Station, HI16 mi83 minE 11 G 2110.00 miPartly Cloudy81°F72°F74%1013.7 hPa
Daniel K Inouye International Airport, HI21 mi27 minNE 1110.00 miA Few Clouds80°F69°F69%1014.1 hPa
Oahu, Kalaeloa Airport, HI24 mi27 minENE 510.00 miFair77°F72°F85%1015.1 hPa

Link to 5 minute data for PHHI

Wind History from HHI (wind in knots)
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Last 24hrE4E3--NW3E6CalmW3NE5NE5SE7SE7
G17
E8SE5E10E8E5E7E5----SE4--CalmSE3
1 day agoNE3NW3CalmCalmCalmN3CalmN5N3N4N8E6NE10N13NE9NE9
G15
------NE7N4--CalmNE3
2 days agoCalm----CalmN4CalmNE4NE3--NE5NE7E13NE12
G17
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--NE9--NE8
G15
----N3NE6NW3--

Tide / Current Tables for Laie Bay, Oahu Island, Hawaii
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Laie Bay
Click for Map
Sat -- 12:29 AM HST     Moonrise
Sat -- 02:13 AM HST     0.42 feet Low Tide
Sat -- 06:12 AM HST     Sunrise
Sat -- 10:09 AM HST     2.01 feet High Tide
Sat -- 02:02 PM HST     Moonset
Sat -- 05:38 PM HST     0.78 feet Low Tide
Sat -- 06:55 PM HST     Sunset
Sat -- 09:29 PM HST     0.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.40.50.60.81.11.41.71.9221.81.61.31.10.90.80.80.80.90.90.90.9

Tide / Current Tables for Haleiwa, Waialua Bay, Oahu Island, Hawaii
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Haleiwa
Click for Map
Sat -- 12:30 AM HST     Moonrise
Sat -- 01:54 AM HST     0.26 feet Low Tide
Sat -- 06:13 AM HST     Sunrise
Sat -- 10:52 AM HST     1.53 feet High Tide
Sat -- 02:03 PM HST     Moonset
Sat -- 05:19 PM HST     0.54 feet Low Tide
Sat -- 06:55 PM HST     Sunset
Sat -- 10:12 PM HST     0.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.30.30.30.40.60.811.21.41.51.51.41.310.80.60.50.50.60.60.70.70.7

Weather Map and Satellite Images
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wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (7,2,3,4)
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Ground Weather Radar Station Molokai, HI
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weather_mapweather_map weather_map

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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.