Friday, March22, 2019 L-36.com


Marine Weather and Tides
Kalihiwai, 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 6:33AMSunset 6:45PM Friday March 22, 2019 1:54 AM HST (11:54 UTC) Moonrise 8:58PMMoonset 8:09AM Illumination 98% 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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PHZ111 Kauai Windward Waters- 933 Pm Hst Thu Mar 21 2019
Rest of tonight..East winds 15 knots. Wind waves 4 feet. Northwest swell 7 feet. Isolated showers through the night.
Friday..East winds 10 knots. Wind waves 6 feet. North swell 6 feet. Isolated showers.
Friday night..East winds 15 knots. Wind waves 7 feet. North swell 7 feet. Scattered showers in the evening, then showers likely after midnight.
Saturday..East winds 10 knots. Wind waves 7 feet. North swell 7 feet. Showers likely.
Saturday night..East winds 15 knots. Wind waves 8 feet. North swell 6 feet. Scattered showers.
Sunday..East winds 15 knots. Wind waves 7 feet. North swell 6 feet. Scattered showers.
Sunday night..East winds 15 knots. Wind waves 8 feet. Northwest swell 6 feet. Scattered showers.
Monday..East winds 15 knots. Wind waves 7 feet. North swell 5 feet. Scattered showers.
Tuesday..East winds 15 knots. Wind waves 4 to 6 feet. North swell 4 to 5 feet. Scattered showers.
PHZ100 933 Pm Hst Thu Mar 21 2019
Synopsis for hawaiian coastal waters.. Moderate to fresh trades will persist as high pressure settles far north of state and a front dissipates about 75 nm north of kauai. Trades will strengthen during the weekend as another high builds north of the islands. Trade winds will ease on Monday and Tuesday as high pressure to the north weakens.


7 Day Forecast for Marine Location Near Kalihiwai, HI
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location: 22.22, -159.43     debug


Area Discussion for -
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Fxhw60 phfo 220643
afdhfo
area forecast discussion
national weather service honolulu hi
843 pm hst Thu mar 21 2019

Synopsis
A ridge of high pressure will continue to generate moderate to
locally strong trade winds through the early part of next week.

A lingering front north of kauai will finally drift south and
provide a boost in trade showers Monday through Tuesday of next
week.

Discussion
The forecast was altered a little while ago, with lower pops for
the first half of the evening for most islands. The uptick in
trade showers is expected after midnight, lasting to about mid
morning, followed by much less showers for the rest of Friday. So,
we anticipate Friday to be a nice day, like today for most if not
all of the islands. The weekend is shaping up to be similar to
today, as a dry and stable air mass stays over the area.

There will be a change in the weather at the start of the new
work week. The models are in good agreement in finally dragging
down the remnants of a boundary that is currently 65 miles off
kauai's north shore. The remnants of the boundary are expected to
move through the islands between Monday and Tuesday morning,
resulting in a boost in trade wind showers.

As for the winds, trades will be trending stronger during the rest
of the night, reaching moderate to locally strong. It should stay
at this range through Tuesday of next week. Supporting the trades
is a 1026 mb high pressure cell centered 775 miles northwest of
kauai. This high will move east and dissipate north of the islands
Friday evening. A new high forms further northwest at this time
and passes north of the islands Saturday night and Sunday, thus
maintaining the locally strong trades through at least Sunday
night. A break down in the trade wind comes on Tuesday night and
Wednesday as front approaches the islands from the west.

The current air mass is stable with a strong inversion based at 65
hundred feet. It is not until Sunday night where the inversion
rises to 10k feet, which pertain to the remnants of the boundary.

Aviation
High pressure north of the state will keep mainly moderate trade
winds in place through Friday, with clouds and showers favoring
windward slopes and coasts. Brief MVFR CIGS vsbys will be possible
in passing showers, but predominantlyVFR conditions are expected
statewide through 06z Saturday.

No airmets are in effect and none are expected overnight or
Friday.

Marine
High pressure building north of the area will bring an increase
in trade winds on Friday and will likely strengthen to fresh to
locally strong levels. A slight decrease of trade winds will be
possible late Friday night, but winds will ramp back up to fresh
to strong levels on Saturday afternoon and hold through early next
week. With the expected increase in trade winds on Friday, a small
craft advisory will likely be issued for the typical windy waters
around maui and the big island. In addition, seas may reach
border line SCA levels of 10 ft for additional waters as a new
north-northwest swell builds Friday night. Trades will ease
towards the middle of next week as the surface high weakens and
is pushed to the southeast by an advancing front. This front could
reach the islands next Thursday.

Surf along north and west facing shores will hold at or above
march normals through the weekend. Surf will remain just below
advisory levels into Friday. A pulse of north-northwest swell will
build late Friday and may push north shore surf to the advisory
level Friday night and Saturday. North shore surf will drop below
march average late Sunday. A small north swell expected Monday
night will keep the surf up for locations that favor this
direction through the day Tuesday. A moderate long-period
northwest swell may produce near advisory level surf Wednesday or
next Thursday.

As trade winds build, rough surf along east facing shores will
gradually increase, with wind swell reaching around the march
average of 6 to 7 ft at 7 seconds late Saturday into Monday. Only
trace background southerly swell will occur.

Hfo watches warnings advisories
None.

Discussion... H lau
aviation... Jelsema
marine... Kino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51208 9 mi49 min 74°F10 ft
NWWH1 - 1611400 - Nawiliwili, HI 19 mi43 min NE 7 G 12 72°F 1020.1 hPa
51201 - Waimea Bay, HI (106) 79 mi43 min 72°F9 ft
51WH0 - WHOTS - Woods Hole Ocean Time-series 88 mi85 min 18 71°F 74°F1020 hPa66°F

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI17 mi62 minNE 1110.00 miPartly Cloudy73°F64°F74%1020.2 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI21 mi59 minSE 38.00 miFair67°F62°F84%1019.5 hPa

Wind History from HLI (wind in knots)
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Last 24hrW6NW4W6NW5NW6W4NW4N8NE13NE14NE14NE14NE10--NE11NE11NE11NE13NE12NE16NE14NE14NE12NE11
1 day agoW6W6W7W7W7W8W4N7NE7NE15NE15NE11NE12NE11NE9N11N6NE9NE5NW5NW6W5W6NW6
2 days agoNE12NE11NE10E10NE10E8NE9E12E11NE9NE85E6SE7E6SE6SE6SE4CalmW4W6W7W7W6

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Fri -- 03:32 AM HST     1.53 feet High Tide
Fri -- 06:40 AM HST     Sunrise
Fri -- 08:09 AM HST     Moonset
Fri -- 09:29 AM HST     -0.21 feet Low Tide
Fri -- 04:16 PM HST     1.64 feet High Tide
Fri -- 06:49 PM HST     Sunset
Fri -- 08:58 PM HST     Moonrise
Fri -- 10:09 PM HST     0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.611.31.51.51.30.90.40-0.2-0.200.40.81.21.51.61.61.30.90.50.20.10.2

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Fri -- 04:43 AM HST     1.43 feet High Tide
Fri -- 06:39 AM HST     Sunrise
Fri -- 08:09 AM HST     Moonset
Fri -- 10:55 AM HST     -0.21 feet Low Tide
Fri -- 05:27 PM HST     1.54 feet High Tide
Fri -- 06:49 PM HST     Sunset
Fri -- 08:58 PM HST     Moonrise
Fri -- 11:35 PM HST     0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.50.81.21.41.41.30.90.50.2-0.1-0.2-0.10.20.611.31.51.51.310.60.30.1

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 (7,2,3,4)
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Ground Weather Radar Station Kauai, 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.