Monday, March27, 2017 L-36.com


Marine Weather and Tides
Eleele, HI

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:27AMSunset 6:47PM Monday March 27, 2017 12:36 PM HST (22:36 UTC) Moonrise 6:29AMMoonset 6:53PM Illumination 0% Phase: New Moon; Moon at 0 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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PHZ113 Kauai Channel- 943 Am Hst Mon Mar 27 2017
.small craft advisory in effect through late this afternoon...
Rest of today..East winds 15 kt. Wind waves 5 ft. Northwest swell 8 ft.
Tonight..East winds 15 kt. Wind waves 5 ft. Northwest swell 7 ft.
Tuesday..East winds 15 kt. Wind waves 5 ft. Northwest swell 7 ft. Isolated showers in the morning.
Tuesday night..East winds 15 kt. Wind waves 5 ft. Northwest swell 7 ft.
Wednesday..East winds 15 kt. Wind waves 5 ft. Northwest swell 7 ft. Isolated showers in the morning.
Wednesday night..East winds 15 kt. Wind waves 5 ft. Northwest swell 6 ft. Isolated showers.
Thursday..East winds 10 kt. Wind waves 5 ft. Northwest swell 7 to 9 ft. Isolated showers.
Friday..East winds 10 kt. Wind waves 4 to 5 ft. Northwest swell 11 to 13 ft. Isolated showers.
PHZ100 943 Am Hst Mon Mar 27 2017
Synopsis for hawaiian coastal waters.. High pressure northeast of the islands will shift east through midweek as a cold front passes far north of the state. A large west-northwest swell is expected to enter the area late on Thursday.

7 Day Forecast for Marine Location Near Eleele, HI
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location: 21.9, -159.59     debug


Area Discussion for -
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Fxhw60 phfo 272006
afdhfo
area forecast discussion
national weather service honolulu hi
1006 am hst Mon mar 27 2017

Synopsis
A ridge will remain north of the state through Thursday night and
will drive moderate east to southeast flow across the state. A
trough aloft will dig east of the island chain Tuesday night and
will bring more windward showers to the state during the second
half of the work week. A prefrontal band of showers may impact the
state Thursday night and Friday, but the front is not expected to
reach the state. A strong high will set up northeast of the state
this weekend and bring windy conditions.

Discussion
A 1031 mb surface high lies about 1750 miles northeast of
honolulu, with a surface ridge extending southwest from the high
and passing 375 miles north of honolulu. The ridge will remain
nearly in place through Thursday night and drive moderate east to
east southeast flow across the state through then.

A ridge aloft will remain over the main hawaiian islands through
tomorrow night. The ridge will keep the atmosphere dry and stable,
so rainfall will remain light until then. Models show an increase
in precipitation arriving early Wednesday morning as an upper
trough digs in east of the state on Tuesday night. The trough
will enhance the moisture tracking in from upstream and will bring
relatively wetter trade wind weather during the second half of the
week. Winds will focus most of the precipitation over windward
and southeast facing slopes. Leeward areas may see a few passing
showers at times.

The ridge to our north will slide to the east Thursday night as a
cold front approaches from the west. The front will stall out
Friday night and a building high to the north over us will force
the front away from us before impact. However, a prefrontal band
of showers will form out of the lingering moisture brought in with
the trade winds and set up over the state Thursday night and
Friday.

The aforementioned high pressure system to the north is forecast
to strengthen to about 1038 mb this weekend. Subtropical highs at
this strength typically produce some windy conditions for us. The
atmosphere will stabilize this weekend with typical windward and
mauka showers moving in with the trades.

Aviation
A stable trade wind flow will produce isolated MVFR ceilings
along windward terrain.VFR will dominate elsewhere. An inversion
will remain in place between 5000 to 7000 ft with moderate E to se
winds up to 20 kt at low levels. No airmets in effect.

Marine
The current west-northwest swell continues to bring advisory
level surf to various north and west facing shores exposed to the
swell. In addition, resulting seas in excess of 10 ft are
contributing to a small craft advisory (sca) for most coastal
waters. The swell is expected to slowly ease into tomorrow, and
then hold steady into Wednesday as a slight reinforcement arrives.

In addition to the elevated seas, winds remain elevated in the
typically windier locations near maui and the big island. Winds
will slowly drop below SCA levels mid week.

Surf along east facing shores will remain small and choppy
through the week due to moderate trade winds. The above mentioned
west-northwest swell is wrapping around the islands and is aiding
a small south-southwest long period swell is bumping surf along
south facing shores. A long period south swell is expected to
bring a bump to south facing shores again Thursday through
Saturday.

A new, potentially larger, west northwest swell is expected to arrive
Thursday night, peak Friday and then slowly ease over the weekend.

The swell is being generated by a strong low off the coast of
japan with hurricane force winds. Will be monitoring model runs as
the system evolves.

Hfo watches/warnings/advisories
High surf advisory until 600 pm hst today for north and west
facing shores of niihau, kauai, oahu and molokai, north facing
shores of maui, and west facing shores of the big island.

Small craft advisory through 600 pm hst today for all hawaiian
waters except oahu leeward waters and maalaea bay.

Discussion... Foster
aviation... Wroe
marine... M ballard


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 13 mi48 min E 9.9 G 14 77°F 1020.9 hPa
51208 27 mi44 min 78°F10 ft
51201 - Waimea Bay, HI (106) 80 mi34 min 75°F8 ft

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI14 mi43 minE 1110.00 miPartly Cloudy80°F68°F67%1021 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI15 mi40 minNW 79.00 miFair0°F0°F%1020.3 hPa

Wind History from HBK (wind in knots)
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Last 24hrNW9N11NW11W8W8W6NW3NE3E3E5E4E3E4E4CalmE3SE3E5E4NE33NW8N8NW7
1 day agoNW10NW10NW8NW8W7W6W5W4CalmSE3E3E3E4E4SE4NE5NE6E5E4E3NW4NW7NW7NW8
2 days agoNW9N11NW12NW11N6S7S3SE4SE3N5N6N5E4E4E5E4E4E4E4CalmNW4S5S9SW10

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Mon -- 03:20 AM HST     1.58 feet High Tide
Mon -- 06:28 AM HST     Moonrise
Mon -- 06:34 AM HST     Sunrise
Mon -- 09:36 AM HST     -0.19 feet Low Tide
Mon -- 03:50 PM HST     1.42 feet High Tide
Mon -- 04:59 PM HST     New Moon
Mon -- 06:50 PM HST     Sunset
Mon -- 06:51 PM HST     Moonset
Mon -- 09:49 PM HST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.71.11.41.61.51.30.90.50.1-0.1-0.200.30.71.11.31.41.310.60.30-0.10.1

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Mon -- 02:09 AM HST     1.68 feet High Tide
Mon -- 06:29 AM HST     Moonrise
Mon -- 06:34 AM HST     Sunrise
Mon -- 08:10 AM HST     -0.19 feet Low Tide
Mon -- 02:39 PM HST     1.52 feet High Tide
Mon -- 04:59 PM HST     New Moon
Mon -- 06:51 PM HST     Sunset
Mon -- 06:52 PM HST     Moonset
Mon -- 08:23 PM HST     -0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.51.71.61.30.80.4-0-0.2-0.10.10.50.91.31.51.51.310.50.2-0-00.20.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
cpac_satellite

GOES Local Image of Hawaii    EDIT
Geos

Wind Forecast for (18,4,5,8)
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Ground Weather Radar Station Kauai, 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.