Wednesday, November22, 2017 L-36.com


Marine Weather and Tides
Haena, HI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:47AMSunset 5:50PM Wednesday November 22, 2017 10:29 AM HST (20:29 UTC) Moonrise 10:22AMMoonset 9:37PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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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PHZ110 Kauai Northwest Waters- 1003 Am Hst Wed Nov 22 2017
.small craft advisory in effect through Friday afternoon...
Rest of today..Northeast winds 20 knots. Wind waves 6 feet. North swell 11 feet. Scattered showers late in the morning, then isolated showers in the afternoon.
Tonight..Northeast winds to 25 knots. Wind waves 7 feet. North swell 13 feet. Scattered showers.
Thursday..Northeast winds to 25 knots. Wind waves 8 feet. North swell 13 feet. Isolated showers in the morning.
Thursday night..Northeast winds to 25 knots. Wind waves 8 feet. North swell 12 feet. Isolated showers in the evening, then scattered showers after midnight.
Friday..Northeast winds to 25 knots. Wind waves 7 feet. North swell 10 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Friday night..Northeast winds to 25 knots. Wind waves 7 feet. North swell 8 feet. Scattered showers.
Saturday..East winds 20 knots. Wind waves 7 feet. North swell 7 to 8 feet. Scattered showers.
Sunday..East winds to 25 knots. Wind waves 7 feet. North swell 7 to 9 feet. Scattered showers.
PHZ100 1003 Am Hst Wed Nov 22 2017
Synopsis for hawaiian coastal waters.. Strong high pressure will build northwest of the area during the next few days, resulting in windy trades over the coastal waters beginning this afternoon and continuing into the weekend. Winds could approach gale force in some of the windier channeled areas on Thursday. A large north swell is expected to spread into the area this afternoon, peak tonight into Thursday, then slowly subside through Friday.

7 Day Forecast for Marine Location Near Haena, HI
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location: 22.2, -159.68     debug


Area Discussion for -
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Fxhw60 phfo 222001
afdhfo
area forecast discussion
national weather service honolulu hi
1001 am hst Wed nov 22 2017

Synopsis
Gusty trade winds are forecast today through the thanksgiving
holiday weekend. Showery conditions over windward and mountain
areas may occasionally spill into adjacent leeward sections. A
more moist trade wind pattern may set up late in the weekend and
early next week.

Discussion
A 1032 mb surface high centered far northwest of the state is
moving slowly eastward. The high is forecast to strengthen as it
drifts east, and this will tighten the pressure gradient over our
area over the next 24 hours. The result will be increasing
northeasterly trades today and tonight. Areas that are exposed to
this wind direction will see gusts approaching 30 mph this
afternoon. The pressure pattern and winds aloft for thanksgiving
day only increase the winds further, with gusts over 40 mph
possible in the windier areas of the state. Will need to consider
if winds are expected to get any stronger than this, which would
necessitate a wind advisory for these windy areas, such as leeward
kohala, lanai, central and west maui, or even elevated parts of
oahu and kauai.

Otherwise, a stable airmass remains over the state today with dry
air capping a somewhat showery mixed layer below. These showers
are affecting mainly windward areas today, and will probably see
these again tonight. Isolated shower spillover to leeward areas
of smaller islands are also anticipated due to the increasing wind
flow. This typical trade wind shower pattern is expected to
continue through much of the weekend, although models show a more
moist, 2 inch precipitable water, airmass developing over the
eastern half of the state Sunday into Monday. This appears in
response to an upper level trough which dives southward over the
state, bringing colder air aloft to the western portion of the
state and increasing the subtropical jet across the eastern half
of the state. Although highly uncertain, if the models persist in
this forecast pattern, the result will be a chance of heavier
showers, especially for windward big island Sunday into Monday.

Even less certainty on whether this moisture would interact with
instability across the smaller islands.

Aviation
High pressure northwest of the state will keep a moderate to
breezy trade wind flow in place through tonight, with the trades
strengthening to locally windy levels on thanksgiving day. Bands
of clouds and showers will move into windward areas through the
period, with showers also reaching leeward areas from time to
time. Some brief MVFR CIGS vsbys will be possible in windward
areas as showers move through, but predominantlyVFR conditions
are expected at the terminals through 23 18z.

Airmet tango remains in effect for moderate low level turbulence
over and downwind of the mountains of all islands. The airmet is
expected to continue through thanksgiving day.

Airmet sierra may be needed for mountain obscuration later today
or tonight.

Marine
Even as local seas are slowly dropping below the 10-foot small
craft advisory (sca) criteria, the next large N swell is
approaching on its heels. Starting to see long-period forerunners
at NOAA buoy 51101. This incoming swell, combined with
strengthening trades, will make for hazardous conditions to small
craft across most of our coastal waters for the thanksgiving
holiday, and into the holiday weekend. Some of the high resolution
guidance shows winds approaching gale force in the alenuihaha
channel on thu, so will keep an eye on this. The trades may ease
off slightly on Fri but it will still be quite windy.

Although surf has probably come below advisory level temporarily
on the n- (and some e-) facing shores, surf along these shores is
expected to rise rapidly this afternoon into the evening as the
new large N swell arrives. This swell is forecast to produce
warning-level surf on n- and exposed e-facing shores, and a high
surf warning remains in effect. A marine weather statement is also
out to cover possible harbor surges for n-facing harbors. The
swell and surf will peak Wed night into thanksgiving day, then
slowly decline Thu night and Friday.

Yet another nne swell is forecast to arrive late in the weekend
and continue into early next week. Most of the swell energy is
forecast to pass E of the state, but it still appears likely to
produce advisory-level surf on n-facing and some e-facing shores.

Hfo watches warnings advisories
High surf warning until 6 am hst Friday for niihau-kauai
windward-kauai leeward-oahu north shore-oahu koolau-olomana-
molokai-maui windward west-maui leeward west-maui central valley-
windward haleakala-big island north and east.

Small craft advisory until 6 pm hst Friday for kauai northwest
waters-kauai windward waters-kauai leeward waters-kauai channel-
oahu windward waters-oahu leeward waters-kaiwi channel-maui
county windward waters-maui county leeward waters-pailolo
channel-alenuihaha channel-big island windward waters.

Small craft advisory until 6 pm hst Friday for maalaea bay-big
island southeast waters.

Discussion... Brenchley
aviation... Jelsema
marine... R ballard


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51208 8 mi37 min 79°F10 ft
NWWH1 - 1611400 - Nawiliwili, HI 24 mi41 min NE 14 G 17 74°F 1018.5 hPa
51201 - Waimea Bay, HI (106) 91 mi57 min 76°F11 ft

Wind History for Nawiliwili, HI
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N7
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N6
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G9
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N9
G14
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G11
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kekaha, Pacific Missile Test Facility Barking Sands, HI10 mi93 minN 1110.00 miMostly Cloudy75°F62°F64%1017.7 hPa
Lihue, Lihue Airport, HI23 mi36 minNNE 1810.00 miMostly Cloudy and Breezy74°F63°F69%1018.6 hPa

Wind History from HBK (wind in knots)
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Last 24hrN18NW10N15N19N13NE16NE11NE14N13N14
G20
NE9NE4N11N16NE5NE8NE10NE9N75CalmNE5N11E3
1 day agoN12
G20
N20
G25
N17
G22
N13
G21
N20N17N17N11NE8N10N11N12NE4NE9N11NE6NE63E5E5E6E6CalmN17
2 days agoN18N20
G24
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G28
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N19N19
G23
N14
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N13NE9
G17
N13N14N12N9N11NE5N15
G20
N7CalmN13NE3N15N14N9N13

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Wed -- 05:03 AM HST     2.06 feet High Tide
Wed -- 06:54 AM HST     Sunrise
Wed -- 10:21 AM HST     Moonrise
Wed -- 12:26 PM HST     0.40 feet Low Tide
Wed -- 05:17 PM HST     0.70 feet High Tide
Wed -- 05:53 PM HST     Sunset
Wed -- 09:35 PM HST     Moonset
Wed -- 09:39 PM HST     0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.11.41.822.121.81.41.10.70.50.40.40.50.60.70.70.70.60.50.40.40.5

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Wed -- 06:13 AM HST     1.96 feet High Tide
Wed -- 06:53 AM HST     Sunrise
Wed -- 10:20 AM HST     Moonrise
Wed -- 01:52 PM HST     0.40 feet Low Tide
Wed -- 05:53 PM HST     Sunset
Wed -- 06:28 PM HST     0.60 feet High Tide
Wed -- 09:35 PM HST     Moonset
Wed -- 11:05 PM HST     0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.60.91.31.61.821.91.71.51.10.80.60.40.40.40.50.60.60.60.50.50.40.4

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 (15,3,4,5)
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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.