Thursday, January17, 2019 L-36.com


Marine Weather and Tides
Laie, 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 7:11AMSunset 6:13PM Thursday January 17, 2019 7:54 AM HST (17:54 UTC) Moonrise 3:05PMMoonset 3:38AM Illumination 88% Phase: Waxing Gibbous; Moon at 12 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- 323 Am Hst Thu Jan 17 2019
.small craft advisory in effect through early Friday morning...
Today..Southwest winds to 25 knots. Wind waves 7 feet. Northwest swell 6 feet. Scattered heavy showers through the day. Slight chance of Thunderstorms in the afternoon.
Tonight..Northwest winds 20 knots. Wind waves 7 feet. Northwest swell 8 feet. Heavy showers likely in the evening. Slight chance of Thunderstorms through the night. Scattered showers after midnight.
Friday..North winds 15 knots. Wind waves 5 feet. Northwest swell 8 feet. Scattered showers and slight chance of Thunderstorms in the morning, then isolated showers in the afternoon.
Friday night..East winds 15 knots. Wind waves 3 feet. North swell 7 feet. Isolated showers.
Saturday..East winds 15 knots. Wind waves 4 feet. North swell 6 feet. Isolated showers in the morning.
Saturday night..East winds 20 knots. Wind waves 5 feet. North swell 6 feet. Isolated showers.
Sunday..Southeast winds 15 knots. Wind waves 5 feet. North swell 4 to 5 feet.
Monday..East winds 10 knots in the morning becoming variable less than 10 knots, then becoming east 10 knots after midnight. Wind waves 3 to 4 feet. Northwest swell 4 to 5 feet. Isolated showers.
PHZ100 323 Am Hst Thu Jan 17 2019
Synopsis for hawaiian coastal waters.. A front approaching the islands from the west will bring an increase in southerly winds today. The front will reach kauai this afternoon, then gradually dissipate as it stalls near maui on Friday. Local strong northeast trades will briefly return Saturday as a surface high passes north of the islands. Then another front will enter the far western offshore waters Sunday night. This will cause the winds to veer to the south Sunday and Monday.


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 171402
afdhfo
area forecast discussion
national weather service honolulu hi
402 am hst Thu jan 17 2019

Synopsis
A cold front approaching kauai will produce gusty southwesterly
winds and wetter conditions over the western end of the state
today. Showers, along with a chance of thunderstorms, will
accompany the front as it pushes down the island chain from later
today through late Friday. Northwesterly winds and drier
conditions will fill in behind the front after it passes. A brief
period of trade winds is expected from late Friday through
Saturday as high pressure passes by north of the area. A new
front approaching kauai early next week is expected to produce
another period of southeast to south winds and increasing showers.

Discussion
A weakening east-northeast to west-southwest oriented ridge
remains in the vicinity of the big island early this morning.

Elsewhere, a cold front located about 300 miles northwest of lihue
is moving toward the southeast at around 20 mph. Southwesterly
winds are occurring near the western islands as this front
continues to advance toward the region. Winds across the remainder
of the state remain relatively weak for now.

Aloft, an upper level ridge persists east of the big island. The
axis of a broad upper level trough, which is supporting the cold
front, is approximately 700 miles west-northwest of kauai.

Satellite imagery shows broken to overcast stratocumulus clouds
with some embedded cumulus clouds in the vicinity of the islands.

Radar indicates scattered showers are moving rapidly up from the
southwest toward kauai. A few light showers are evident near the
remainder of the island chain.

The forecast guidance shows the southwest winds will continue to
strengthen as the cold front moves closer to kauai, especially
over the western end of the state. These strengthening southwest
winds will likely produce locally strong wind gusts over the north
through east sides of the western islands, especially on kauai
and oahu today. The coverage and intensity of the showers will
likely increase as the front moves closer to the state, with
locally heavy downpours possible starting later today, and
continuing into tonight. Thunderstorms may also accompany the
front starting this afternoon. This deep convection may develop
due to the increasing moisture and instability associated with the
front, as well as the upper level trough, which will be
approaching the state. Northwesterly winds and drier conditions
will likely fill in behind the cold front after it passes.

The cold front is forecast to reach kauai this afternoon, and
oahu this evening. The front will then push down across maui
county later tonight and early Friday, before reaching the big
island late Friday. Temperatures are expected to be cold enough to
potentially produce snow showers on the highest summits of the
big island late tonight and Friday.

The winds will shift around to a more typical trade wind direction
from late Friday through Saturday as a surface high pressure
system passes by to the north of the area. Moisture associated
with the front may linger over the eastern end of the state, which
may produce some trade showers along windward sections.

The forecast models continue to indicate another front will
approach kauai Sunday and Monday. Once again, the surface winds
are forecast to swing around to the southeast and south ahead of
this feature. This front may reach kauai late Monday, with
showers likely increasing as it approaches. The latest forecast
guidance appears to show this feature rapidly weakening after it
reaches kauai.

Aviation
A fast moving cold front approaching from the northwest is
expected to reach kauai later today. Expect south to southwest
occasionally gusty winds along and in advance of the front. Winds
will veer to the northwest behind the front. Periods of heavy rain
and isolated embedded thunderstorms are expected along and in
advance of the front. MVFR conditions in widespread showers are
expected along and behind the front.

Airmet tango for low level turbulence north through northeast of
higher terrain may be issued within the next few hours. Strong
winds downwind of the higher terrain are expected to develop
across kauai this morning, and across oahu this afternoon.

Airmet sierra will likely become necessary later today. Mountain
obscuration could develop as early as noon today across kauai,
and as early as this coming evening across oahu.

Meanwhile, a weakening ridge of high pressure will keep the
remainder of the islands dry and stable. No airmets are currently
in effect, and none are anticipated for molokai eastward through
at least early evening.

Marine
A front will continue to approach the hawaiian islands from the
northwest, bringing stronger southwest winds as it nears the
state. Small craft advisory (sca) speeds are expected across
most waters around kauai and oahu through early Friday morning.

Slightly further north of kauai waters, a gale warning remains in
effect.

As the front enters the western offshore waters, rain will be on
the increase along and ahead of it. The threat for thunderstorms
will be moving west to east with the front and will persist
through late Friday. Starting Friday night, a fast moving high
will build north of the state and fresh to strong trades will
briefly return. Another front will begin to approach the area
Sunday and is expected to enter the northwest offshore waters
Sunday night. This will once again shift winds to the southeast on
Sunday and south to southwest Sunday night into Monday.

A moderate to large, short-period, northwest swell will build
tonight and peak early Friday, then slowly shift to the north-
northwest and fade over the weekend. This swell may briefly reach
advisory levels for exposed north and west facing shores tonight
and Friday. In the long range, an active weather pattern will
continue to produce small to moderate northwest swell through
early next week. A larger northwest swell is possible towards the
later half of next week.

Hfo watches warnings advisories
Small craft advisory until 6 am hst Friday for kauai northwest
waters-kauai windward waters-kauai leeward waters-kauai channel-
oahu windward waters.

Discussion... Houston
aviation... Bedal
marine... Powell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51201 - Waimea Bay, HI (106) 10 mi42 min 74°F5 ft
51207 15 mi30 min 76°F3 ft
51210 15 mi54 min 76°F3 ft
MOKH1 - 1612480 - Mokuoloe, HI 17 mi78 min S 6 G 11 76°F 75°F1012.8 hPa
51202 - Mokapu Point, HI (098) 21 mi24 min 76°F4 ft
51211 24 mi84 min 76°F4 ft
OOUH1 - 1612340 - Honolulu, HI 24 mi42 min W 12 G 16 74°F 76°F1013.5 hPa
51212 25 mi54 min 78°F6 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 mi2 hrsS 7 G 1610.00 miMostly Cloudy71°F58°F63%1012 hPa
Kaneohe, Marine Corps Air Station, HI16 mi2 hrsS 410.00 miMostly Cloudy77°F68°F74%1011.2 hPa
Daniel K Inouye International Airport, HI21 mi61 minWSW 18 G 2410.00 miLight Rain and Breezy75°F63°F66%1013.5 hPa
Oahu, Kalaeloa Airport, HI24 mi61 minWSW 1010.00 miOvercast73°F64°F74%1014.5 hPa

Wind History from HHI (wind in knots)
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Last 24hrSE3SE4SE6SW8SW8S7W8SW4S6S7S8S8S5SE3S5S7S4S6S4SW6SW7
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1 day agoCalmCalmCalmW3CalmNW5NW4NW5NW8NW7N4N4NW4CalmNW4W3N3NW3CalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmE4CalmSE5CalmN7CalmNE3NE4E3E4CalmCalmCalmCalmCalmCalmCalmNW3CalmNW3NE3

Tide / Current Tables for Laie Bay, Oahu Island, Hawaii
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Laie Bay
Click for Map
Thu -- 03:37 AM HST     Moonset
Thu -- 07:01 AM HST     0.55 feet Low Tide
Thu -- 07:12 AM HST     Sunrise
Thu -- 11:10 AM HST     0.88 feet High Tide
Thu -- 03:04 PM HST     Moonrise
Thu -- 05:02 PM HST     -0.05 feet Low Tide
Thu -- 06:11 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.11.81.51.10.80.60.50.60.70.80.90.80.70.50.20-0.100.30.71.21.72.1

Tide / Current Tables for Haleiwa, Waialua Bay, Oahu Island, Hawaii
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Haleiwa
Click for Map
Thu -- 12:38 AM HST     1.64 feet High Tide
Thu -- 03:38 AM HST     Moonset
Thu -- 06:42 AM HST     0.36 feet Low Tide
Thu -- 07:12 AM HST     Sunrise
Thu -- 11:53 AM HST     0.63 feet High Tide
Thu -- 03:05 PM HST     Moonrise
Thu -- 04:43 PM HST     -0.12 feet Low Tide
Thu -- 06:12 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.61.51.20.80.60.40.40.40.50.50.60.60.50.40.1-0.1-0.1-00.20.50.81.21.5

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 (12,3,4,5)
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Ground Weather Radar Station Molokai, 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.