Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Hanamaulu, 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 6:20AMSunset 6:27PM Saturday September 23, 2017 8:37 PM HST (06:37 UTC) Moonrise 9:35AMMoonset 9:17PM Illumination 13% 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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PHZ111 Kauai Windward Waters- 334 Pm Hst Sat Sep 23 2017
Tonight..Northeast winds 15 knots. Wind waves 4 feet. Northwest swell 3 feet. Isolated showers.
Sunday..East winds 15 knots. Wind waves 4 feet. Northwest swell 3 feet. Isolated showers in the morning.
Sunday night..East winds 10 knots. Wind waves 3 feet. Northwest swell 3 feet. Isolated showers.
Monday..East winds 10 knots. Wind waves 3 feet. Northwest swell 3 feet in the morning. Isolated showers.
Monday night..East winds 10 knots. Wind waves 3 feet. Isolated showers.
Tuesday..East winds 10 knots. Wind waves 3 feet. Northwest swell 3 feet in the afternoon. Isolated showers.
Tuesday night..East winds 10 knots. Wind waves 3 feet. Northwest swell 3 feet. Scattered showers.
Wednesday..Northeast winds 10 knots. Wind waves 3 to 4 feet. North swell 3 feet. Scattered showers.
Thursday..East winds 10 knots. Wind waves 3 feet. North swell 3 feet. Scattered showers.
PHZ100 334 Pm Hst Sat Sep 23 2017
Synopsis for hawaiian coastal waters.. A ridge of high pressure will move closer to the island chain this weekend as a cold front passes to the north, keeping wind speeds in the light to moderate range.

7 Day Forecast for Marine Location Near Hanamaulu, HI
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location: 22, -159.33     debug


Area Discussion for -
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Fxhw60 phfo 240157
afdhfo
area forecast discussion
national weather service honolulu hi
357 pm hst Sat sep 23 2017

Synopsis
Trade winds will gradually ease during the next couple of days as
a surface ridge to the north weakens. Mainly windward clouds with
light passing showers will prevail through Tuesday, with a
possible boost in shower activity around the middle of the work
week. Gentle to moderate trade winds will likely persist heading
into next weekend.

Discussion
A stable trade wind flow continues to produce a somewhat dry
pattern of mainly windward rainfall. A 1028 mb surface high
centered near 41n138w and an associated ridge extending from the
high to 600 miles north of kauai are driving the moderate trade
wind flow. Precipitable water within this flow is running near to
slightly below september normal, and a mid level ridge to
maintaining rather stable conditions with an inversion between
5,500 and nearly 8,000 ft. A shallow upper level trough cutting
across the islands is having no impact aside from a wisps of high
clouds over the eastern half of the island chain.

This weather pattern has produced scant rainfall today and modest
rainfall of under a tenth of an inch over windward slopes in the
past 24 hours, with standouts like waialeale collecting about a
quarter of an inch during that time. Leeward areas of the smaller
islands have been dry, while leeward an interior slopes of the
big island have been seeing afternoon clouds and a few showers.

Expect little change tonight over most areas tonight, with
clearing over leeward big island slopes by late evening.

Only subtle changes to the ongoing weather pattern are in store
during the next few days. The ridge will weaken and retreat slowly
southward, leading to a gradual decrease in the trades. This may
lead to more extensive leeward sea breezes by Monday, but showers
should remain confined to windward slopes.

An increase in shower activity is expected mid-week. A weakening
surface trough, currently sitting about 600 miles east of hilo,
will dissipate as it passes over the islands on Wednesday, but
its associated moisture will fuel some increase in shower
activity. Gentle to moderate trade winds will persist.

Aviation
Light to locally moderate trade winds will persist through 24
hours and beyond. Ragged clouds and isolated showers embedded in
the trade flow will favor windward and mauka sections of all
islands. Weak sea breezes and convective showers across interior
and leeward portions of the big island this afternoon will both
dissipate after sunset. Brief MVFR cig vis possible in passing
showers. OtherwiseVFR conditions will prevail all areas.

No airmets currently in effect, and none anticipated at this time.

Marine
Trade wind speeds will remain below small craft advisory
threshold through the forecast period.

Surf along south facing shores will remain small through early next
week, with mainly background southeast and southwest swell energy
expected. A small, long-period pulse out of the southwest from
the tasman sea is expected by Sunday and for a slight increase in
south shore surf. For the extended forecast, strong to gale-force
southwest winds associated with a low in the tasman sea may lead
to a reinforcing, small southwest swell for Tuesday through
midweek.

A small northwest swell will ease tonight, before another small
reinforcement from that direction fills in around Sunday night,
lasting through the middle of next week.

Hfo watches warnings advisories
None.

Public... Wroe
aviation... Bedal
marine... Ts


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 3 mi67 min NNE 8.9 G 12 79°F 1016.4 hPa
51208 24 mi45 min 81°F4 ft
51201 - Waimea Bay, HI (106) 68 mi35 min 80°F4 ft

Wind History for Nawiliwili, HI
(wind in knots)    EDIT      (on/off)   Help
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NE9
G12
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NE6
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G22
NE6
W2
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G7
SW5
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G9
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N13
NE7
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NE10
G14
NE12
G17
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NE9
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NE5
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N3
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NE8
G13
NE12
G16
NE11
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NE13
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N8
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G11
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NE11
NE8
G11
NE12
G16
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NE13
G18
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G18
NE11
G16
NE16
NE14
G18
NE12
G18
NE14
G17
NE12
NE12
G15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI2 mi44 minNNE 1110.00 miMostly Cloudy80°F70°F71%1016.8 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI24 mi41 minN 010.00 miFair80°F69°F69%1016.2 hPa

Wind History from HLI (wind in knots)
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Last 24hrNE12NE11NE11E17
G21
NE12NE10NE11NE10NE10NE10CalmNE11NE11NE13NE13NE12NE13NE11NE11NE13NE12N12N12NE11
1 day agoNE15NE12E16NE13NE11NE11NE11NE11NE11NE11NE11NE11NE11E9NE13NE13NE13NE13N10NE16NE14NE12NE13NE14
2 days agoNE13NE15E15NE16E13NE12NE14NE14NE13NE15NE16
G21
NE13NE15NE14NE16NE15NE14NE15NE15NE17NE17NE13NE13NE14

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Sun -- 06:26 AM HST     Sunrise
Sun -- 06:37 AM HST     1.70 feet High Tide
Sun -- 10:26 AM HST     Moonrise
Sun -- 01:15 PM HST     0.68 feet Low Tide
Sun -- 06:19 PM HST     1.02 feet High Tide
Sun -- 06:31 PM HST     Sunset
Sun -- 09:57 PM HST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.50.711.31.51.71.71.61.41.10.90.80.70.70.80.91110.90.80.60.5

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Sun -- 05:26 AM HST     1.80 feet High Tide
Sun -- 06:27 AM HST     Sunrise
Sun -- 10:27 AM HST     Moonrise
Sun -- 11:49 AM HST     0.68 feet Low Tide
Sun -- 05:08 PM HST     1.12 feet High Tide
Sun -- 06:31 PM HST     Sunset
Sun -- 09:57 PM HST     Moonset
Sun -- 10:41 PM HST     0.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.81.11.41.71.81.81.61.41.10.90.70.70.70.811.11.11.110.80.60.50.4

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 (2,6,7,8)
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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.