Monday, May29, 2017 L-36.com


Marine Weather and Tides
Puhi, HI

Version 3.4
What's New / NOTES
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 5:48AMSunset 7:11PM Monday May 29, 2017 11:03 AM HST (21:03 UTC) Moonrise 10:05AMMoonset 11:29PM Illumination 19% 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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PHZ113 Kauai Channel- 936 Am Hst Mon May 29 2017
Rest of today..Winds variable less than 10 knots. Wind waves 2 feet or less. SWell south 3 feet. Isolated showers through the day.
Tonight..Northeast winds 10 knots. Wind waves 2 feet or less. North swell 3 feet after midnight. SWell south 3 feet. Scattered showers.
Tuesday..Northeast winds 15 knots. Wind waves 2 feet or less then 3 feet in the afternoon. North swell 3 feet. Isolated showers through the day.
Tuesday night..East winds 15 knots. Wind waves 4 feet. North swell 4 feet. Isolated showers.
Wednesday..East winds 15 knots. Wind waves 4 feet. Northwest swell 4 feet. Isolated showers.
Wednesday night..East winds 20 knots. Wind waves 5 feet. Northwest swell 3 feet. Isolated showers.
Thursday..East winds 20 knots. Wind waves 6 feet. Northwest swell 3 feet. Isolated showers.
Friday..East winds 20 knots. Wind waves 6 to 7 feet. Northwest swell 3 feet. Scattered showers.
PHZ100 936 Am Hst Mon May 29 2017
Synopsis for hawaiian coastal waters.. A weak trough of low pressure will shift northwest and weaken by Tuesday night. High pressure will build north of the area Tuesday night through Friday.

7 Day Forecast for Marine Location Near Puhi, HI
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location: 21.92, -159.38     debug


Area Discussion for -
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Fxhw60 phfo 291949
afdhfo
area forecast discussion
national weather service honolulu hi
949 am hst Mon may 29 2017

Synopsis
Light winds with land and sea breezes will continue one more day as
a weak pressure pattern lingers in the island vicinity. A few
windward showers will reach the area under the light easterly winds,
with clouds and showers shifting to leeward and interior areas in
the afternoon. Trade winds will return on Tuesday or Tuesday night,
becoming breezy toward the weekend. Passing showers will mainly
affect windward and mountain areas.

Discussion
An upper low is centered 300 miles northeast of hilo, but tracking
away from the islands. A trough reflected at the surface is
located over the island chain bringing a light wind regime across
the area. Early morning soundings show precipitable water (pw) values
ranging from a relatively dry 0.98 inches at lihue to near normal
1.31 inches at hilo. Visible satellite shows mostly sunny skies
over the island this morning and should continue through the
morning hours.

By this afternoon, sea breezes will set in and bring cloud build
ups across all of the island interiors. Some showers will be
possible, but the greatest chance will be over maui county and the
big island where the higher pw values and nearby upper low are located.

Without the trades, another warm and humid day is on tap. Land breezes
will set in tonight and suppress the cloud cover and showers.

High pressure will build north of the state Tuesday, and will
bring trade winds back to the islands, though it may take until
Tuesday night for the winds to reach kauai and oahu (so one more
day of localized sea breezes may be possible for Tuesday).

Low clouds and showers carried by the winds will affect mainly
windward and mountain areas through the remainder of the week.

Trades are expected to strengthen late in work week as the high
strengthens. Forecast solutions indicated a somewhat stable
airmass will prevail in the island vicinity, with not much change
in the low level moisture. Therefore, expect the typical windward
and mauka showers for the rest of the week, with a few more
showers passing to leeward sides of the smaller islands late in
the week as the trades strengthen.

Aviation
A weak high pressure ridge to the north of the islands will keep
the hawaiian area in a light east to southeast trade wind pattern
through Tuesday. Expect onshore sea breezes in the daytime with
cloud ceilings over interior and western slopes and offshore land
breezes with diminishing cloud cover in the overnight period.

Showers will favor the coastal waters and windward areas during
the overnight and early morning hours, and the interior of the
islands during the afternoon and evening. Some brief MVFR
cigs vsbys will be possible in shra over the island interiors this
afternoon evening, but predominantlyVFR conditions are forecast.

No airmets are currently in effect.

Marine
The record-breaking high water levels experienced each day over
the weekend due to a combination of a large south swell and king
tides have begun to trend down and will continue to do so through
the week. Coastal flooding impacts around these late
afternoon early evening high tides will likely occur again this
evening before conditions trend back to normal or even slightly
below by the end of this week.

The large south swell that peaked Saturday will continue to ease
into Tuesday, but remain somewhat elevated through this morning.

Onshore winds are expected to fill in by noon and continue through
the afternoon period as the surf fades. A series of small
background southerly pulses moving through will keep the surf
small, but not flat along south facing shores each day through
the upcoming weekend. For the long range, no significant southerly
swells are expected through the first week of june.

An out of season small to moderate north-northwest (330 deg) swell
associated with a gale that tracked far north of the state is
forecast to fill in Monday night across the local waters. This
swell should peak Tuesday well below advisory levels, then trend
down into the second half of the week.

Light winds with land-sea breeze conditions will prevail near the
coasts into Tuesday morning due to a weak surface trough located
near the big island and northwest of kauai. Trade winds will
gradually return Tuesday through midweek as high pressure builds
north of the area. Small craft advisory conditions will likely
result due to strong winds beginning Tuesday night and persisting
through the rest of the week. These stronger winds are expected to
setup over the channels, maalaea bay and south of the big island.

As a result, rough and choppy surf along east facing shores is
expected through the second half of the week and into the upcoming
weekend.

Hfo watches warnings advisories
None.

Discussion... Foster
aviation... Bohlin
marine... Ts


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 3 mi64 min ENE 5.1 G 7 78°F 1018.2 hPa (+0.7)
51208 27 mi42 min 80°F4 ft
51201 - Waimea Bay, HI (106) 69 mi32 min 79°F4 ft

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI4 mi71 minNE 610.00 miFair82°F68°F63%1018.4 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI24 mi68 minNW 610.00 miFair0°F0°F%1018.3 hPa

Wind History from HLI (wind in knots)
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Last 24hrE7SE9SE7SE6NE3W7W9W5W6W8W7W7W7W8W7W8W7W7W7W7W43NE6E6
1 day agoE5SE8SE8SE7N4W7W9W8W7W7W7W6W6W9W6W6W9W9W8W8W4CalmE5E7
2 days agoN5NE8NE9NE7W9SW11W7W5W5W5W4W6W7W5NW5W8W9W7W7W9NW3N6E7E6

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Mon -- 02:02 AM HST     -0.07 feet Low Tide
Mon -- 05:53 AM HST     Sunrise
Mon -- 07:08 AM HST     0.42 feet High Tide
Mon -- 10:05 AM HST     Moonrise
Mon -- 11:50 AM HST     0.03 feet Low Tide
Mon -- 07:15 PM HST     Sunset
Mon -- 07:26 PM HST     1.92 feet High Tide
Mon -- 11:29 PM HST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20-0.1-00.10.30.40.40.40.30.20.100.10.30.71.11.41.71.91.91.71.41

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Mon -- 12:36 AM HST     -0.07 feet Low Tide
Mon -- 05:54 AM HST     Sunrise
Mon -- 05:57 AM HST     0.52 feet High Tide
Mon -- 10:05 AM HST     Moonrise
Mon -- 10:24 AM HST     0.03 feet Low Tide
Mon -- 06:15 PM HST     2.02 feet High Tide
Mon -- 07:17 PM HST     Sunset
Mon -- 11:30 PM HST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-0.100.20.40.50.50.50.30.1000.20.50.81.21.61.9221.71.30.90.4

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 (17,4,5,8)
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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.