Sunday, June24, 2018 L-36.com


Marine Weather and Tides
Kalihiwai, HI

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:50AMSunset 7:19PM Sunday June 24, 2018 6:22 AM HST (16:22 UTC) Moonrise 4:43PMMoonset 3:29AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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- 347 Am Hst Sun Jun 24 2018
Today..East winds 20 knots. Wind waves 7 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Tonight..Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.
Monday..Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.
Monday night..East winds 20 knots. Wind waves 6 feet. Scattered showers.
Tuesday..East winds 20 knots. Wind waves 5 feet. Scattered showers.
Tuesday night..East winds 20 knots. Wind waves 6 feet. Isolated showers in the evening, then scattered showers after midnight.
Wednesday..East winds 20 knots. Wind waves 6 to 7 feet. South swell 3 feet. Isolated showers.
Thursday..East winds 20 knots. Wind waves 7 feet. South swell 3 feet. Isolated showers.
PHZ100 347 Am Hst Sun Jun 24 2018
Synopsis for hawaiian coastal waters.. High pressure over the central pacific will slowly build eastward through the week.

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 241348
afdhfo
area forecast discussion
national weather service honolulu hi
348 am hst Sun jun 24 2018

Synopsis
A high pressure ridge north of the islands will keep a breezy
trade wind weather pattern across the hawaiian islands through
next week. Clouds and showers will move across each island
favoring windward and mountain areas with brief periods of showers
drifting over leeward sections.

Discussion
A strong high pressure system far north of the hawaiian islands
will continue to move east maintaining a strong high pressure
ridge north of the state. A persistent breezy trade wind weather
pattern will continue through at least next week Friday.

Decreasing trade winds may develop by next Saturday as an upper
level low approaches hawaii from the north. Expect a fairly wet
trade wind weather pattern for the next seven days with showers
and clouds favoring windward and mountain slopes of all islands
along with with brief periods of showers drifting over leeward
sections. Long range models remain in good agreement with this
high confidence trade wind and weather pattern.

This mornings upper air soundings at hilo and lihue show trade
wind subsidence inversion heights around 7,000 feet. This
inversion represents a very stable layer aloft, a boundary between
large scale downward motions of the ridge aloft and upward
motions in the near surface layer driven by low level convergence
and cloud convection. Cloud depths are typically capped by this
strong thermal inversion and higher(lower) cloud heights under
this inversion tend to expand(limit) rainfall activity. Model
soundings and cross sections are showing some day to day changes
in the height of the trade wind inversion through the week with
inversion heights ranging between 7,000 and 10,000 feet. At this
height range showers will likely develop across the islands, with
the highest chances for rain showers expected along windward and
mountain slopes.

A weak upper level low shown on GOES water vapor imagery remains
just northeast of the islands and this system will drift slowly
westward reaching the eastern half of the state as an upper level
trough by Monday. This system is fairly weak and will not deliver
much noticeable weather impacts as the trade wind inversion
height is already high enough for sustained shower activity.

Vog (volcanic smog) and other emissions from kilauea and the east
rift zone will drift southwest across the kau district with
atmospheric eddies west of the big island helping to push some vog
concentrations up along leeward slopes of the big island. However
the rest of the state will remain well protected from vog
emissions by the breezy northeasterly trade winds keeping the vog
plume well south of the smaller islands through at least next
Friday.

Aviation
Breezy, occasionally strong, trade winds will persist as a ridge
of high pressure remains north of the state.VFR will
predominate, with passing showers bringing brief MVFR conditions
to windward and mauka sections on the individual islands.

Airmet tango remains in effect for low level turbulence over and
sw of all islands.

Marine
Fresh to strong trades associated with high pressure to the north
will continue through the week. A small craft advisory remains in
effect for most waters east of oahu today, then across the
typically windier waters surrounding maui county and the big
island through Tuesday. Surf along east facing shores will remain
rough due to fresh to strong trades in place.

Surf along south facing shores is expected to trend back up this
week as overlapping long-period south swells fill in due to recent
activity across the southern pacific. The first swell has already
moved through at the american samoa buoy over the past couple of
days and should begin filling in locally come Tuesday. The second
source should begin to fill in at the samoa buoy and peak later
today through tonight, then arrive locally come midweek.

Surf will begin to build along south facing shores from the first
source Tuesday, then become reinforced Wednesday Thursday as the
second larger source fills in. Surf may reach the south shore
advisory level at the peak of this reinforcement by Thursday.

Looking ahead into the first week of july, the active trend could
persist along south facing shores. A recent ascat pass showed a
gale-force low passing just south of the tasman sea with gales
setting up within hawaii's swell window. Wavewatch iii now
reflects this at the american samoa buoy by Thursday night into
Friday, which should result in another decent south-southwest
swell locally early next week.

Hfo watches warnings advisories
Small craft advisory until 6 pm hst Tuesday for maalaea bay-
pailolo channel-alenuihaha channel-big island leeward waters-big
island southeast waters.

Small craft advisory until 6 pm hst this evening for oahu
leeward waters-kaiwi channel-maui county windward waters-maui
county leeward waters.

Discussion... Bohlin
aviation... Kinel
marine... Gibbs


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 19 mi59 min NE 9.9 G 13 77°F 82°F1017.3 hPa
51WH0 - WHOTS - Woods Hole Ocean Time-series 88 mi113 min 79°F

Wind History for Nawiliwili, HI
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Last
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NE15
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G21
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G20
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G22
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NE10
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G20
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E11
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G16
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI17 mi30 minNE 1710.00 miMostly Cloudy78°F72°F82%1017.6 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI21 mi87 minNE 510.00 miFair71°F66°F84%1016.9 hPa

Wind History from HLI (wind in knots)
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Last 24hrNE13NE15NE17NE16NE16NE14NE16NE16NE18NE17NE18NE17NE18NE17NE18NE19NE16E20
G25
NE15NE14NE16NE15NE18NE17
1 day agoNE11NE9E13NE14
G20
NE15NE13NE13NE14NE13NE14E14
G22
NE13NE12E14NE14NE10NE13E17
G23
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G22
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2 days agoE9E8E11E11E10E9E10NE9NE11NE11NE11NE11NE10NE13NE13NE12NE12NE11NE11E17NE7NE13NE13NE13

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Sun -- 03:29 AM HST     Moonset
Sun -- 05:20 AM HST     -0.15 feet Low Tide
Sun -- 05:55 AM HST     Sunrise
Sun -- 01:06 PM HST     1.95 feet High Tide
Sun -- 04:43 PM HST     Moonrise
Sun -- 07:25 PM HST     Sunset
Sun -- 07:46 PM HST     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.70.50.2-0-0.1-0.10.10.40.81.21.61.81.91.91.61.30.90.60.40.40.50.60.7

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Sun -- 12:44 AM HST     0.74 feet High Tide
Sun -- 03:28 AM HST     Moonset
Sun -- 05:55 AM HST     Sunrise
Sun -- 06:46 AM HST     -0.15 feet Low Tide
Sun -- 02:17 PM HST     1.85 feet High Tide
Sun -- 04:42 PM HST     Moonrise
Sun -- 07:24 PM HST     Sunset
Sun -- 09:12 PM HST     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.70.50.30-0.1-0.2-00.20.611.41.71.81.81.61.310.70.50.40.40.5

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.
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Wind Forecast for (12,3,4,5)
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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.