Friday, November16, 2018 L-36.com


Marine Weather and Tides
Haena, HI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:43AMSunset 5:50PM Friday November 16, 2018 9:49 AM HST (19:49 UTC) Moonrise 2:03PMMoonset 12:59AM Illumination 63% Phase: Waxing Gibbous; Moon at 9 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
    EDIT      (on/off)   Help
PHZ110 Kauai Northwest Waters- 342 Am Hst Fri Nov 16 2018
.small craft advisory in effect through Saturday afternoon...
Today..Northeast winds 20 knots. Wind waves 5 feet. North swell 9 feet. Scattered showers.
Tonight..East winds 20 knots. Wind waves 6 feet. North swell 9 feet. Scattered showers.
Saturday..Northeast winds 20 knots. Wind waves 6 feet. North swell 9 feet. Scattered showers in the morning.
Saturday night..Northeast winds 20 knots. Wind waves 6 feet. North swell 6 feet. Isolated showers after midnight.
Sunday..East winds 20 knots. Wind waves 6 feet. North swell 5 feet. Isolated showers in the morning.
Sunday night..East winds 20 knots. Wind waves 6 feet. North swell 5 feet. Scattered showers.
Monday..East winds 20 knots. Wind waves 6 feet. Northwest swell 4 to 6 feet. Scattered showers.
Tuesday..East winds 20 knots. Wind waves 6 feet. Northwest swell 5 to 6 feet. Isolated showers.
PHZ100 342 Am Hst Fri Nov 16 2018
Synopsis for hawaiian coastal waters.. High pressure will build north of the area over the weekend in the wake of a front, then strengthen early next week.


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


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxhw60 phfo 161404
afdhfo
area forecast discussion
national weather service honolulu hi
404 am hst Fri nov 16 2018

Synopsis
Surface high pressure building far north-northwest of the area
will cause the trade winds to strengthen across the islands
through early next week. An upper-level trough passing near the
state may cause increasing instability and wetter conditions as
moisture associated with a weakening frontal band moves down
across the area through this weekend. The frontal band is
expected to push south of the big island Sunday night. The
trailing end of another front may reach the islands around the
middle of next week.

Discussion
A 1026 mb surface high near 34n 166w, or about 950 miles north-
northwest of lihue, is moving toward the east-southeast at about
15 mph. This feature is causing the pressure gradient to tighten
across the state early this morning, which is causing the
northeasterly trade winds to gradually strengthen. In addition,
the surface high is pushing a weakening frontal boundary down
toward the state. The diffuse leading edge of the band of broken
to overcast low clouds and numerous showers associated with the
front is located slightly less than 200 miles north-northwest of
lihue. This leading edge has been moving toward the south-
southeast at 5 to 10 mph during the past six hours.

Aloft, a middle tropospheric trough appears to be near the
western end of the island chain, while a broad upper tropospheric
trough is digging down toward the region from the northwest. Even
though the trough aloft near the islands is producing some
instability, the mid-layers of the atmosphere remain relatively
dry. Low clouds and showers being transported into the islands
by the strengthening low-level trade wind flow are affecting
windward sides of most islands. A few of these showers are also
passing across some leeward sections of the smaller islands.

In addition to the low clouds, high clouds continue to stream
over the area from the southwest ahead of the digging upper-level
trough.

The forecast guidance continues to indicate the trades will become
locally breezy by mid to late morning as the surface high builds
toward the east-southeast. At the same time, trade showers are
forecast to continue over windward sections. The slight
instability due to the troughs aloft may produce some brief heavy
rainfall. However, the showers will likely be fast morning, so no
significant flooding is forecast at this time. We will need to
monitor radar and rain gages in case training of echoes
unexpectedly occurs. This scenario, if it occurs later today or
tonight, might require the issuance of a flood advisory or two
for localized ponding of water on roads or elevated flow in some
streams and drainage systems over some windward sections.

As we head in to this weekend, the surface high will likely push
the weakening frontal band down toward the islands. Based on the
latest guidance, we expect the remnant band of low clouds and
showers will reach kauai late tonight, and then oahu Saturday
morning. After that, it may move over maui county Saturday evening
and the big island Saturday night. The band is expected to move
southeast of the big island Sunday night. Numerous showers can be
expected over windward and mauka areas as this band passes. In
addition, the strong trades will likely transport scattered
showers over many leeward sections of the smaller islands.

The surface high will gradually weaken early next week. At the
same time, a new front is forecast to approach the region from the
northwest due to a new high building behind this front. The
trailing end of the front will likely reach the islands around
the middle of next week, which will produce a wet trade wind
weather pattern.

Aviation
High pressure will build northwest of the state resulting in
strengthening trade winds. High level clouds along the subtropical
jet will gradually shift eastward as an upper level trough moves
over the islands. These high clouds range from fl200-300, but may
thicken up later today along the western end of the band.

Moderate turbulence and light icing are both expected within this
cloud band. Airmet tango remains posted for tempo moderate
turbulence in fl200-300 kauai to maui.

The atmosphere will become more unstable as the upper trough
approaches. Combined with increasing trade winds, this will cause
showers to become more frequent over windward sections, with areas
of MVFR conditions and mountain obscuration possible. Airmet
sierra may be required for mountain obscuration later today.

No other airmets are in effect.

Marine
Trades are forecast to increase across the island waters and hold in
the fresh to strong category through the weekend as high pressure
builds north of the state in the wake of a front. Trades may reach
the strong category across most waters Monday night through
Wednesday with near gales across the typically windier waters
between maui county and the big island. Seas are nearing the
advisory level (10 ft) across the northwest waters this morning
due to a combination of a new northwest swell filling in and
locally generated wind seas. As a result, the small craft advisory
currently in place will remain up and has been extended through
Sunday for the typically windier waters.

Surf along north and west facing shores will quickly rise this
morning as a new northwest swell fills in from a system that
reached storm-force category Tuesday night into Wednesday as it
tracked east of the date line around 40n. Buoy observations are
already reflecting this new source within the 14-16 second bands
(320-330 deg) at the northwest offshore buoys and the nearshore
pacioos hanalei buoy. The swell ended up coming in a couple of
feet higher than predicted at the offshore northwest buoys this
morning, which should be reflected at the exposed nearshore buoys
today. Surf is forecast to reach and exceed the advisory
thresholds for north and west facing shores of the smaller islands
today, then hold through tonight before slowly easing over the
weekend. Expect this source to gradually shift out of a more
northerly direction through the weekend as it fades.

A reinforcement out of the northwest is expected to fill in late
Monday, peak Monday night into Tuesday, then fade through midweek.

This source will be from a storm-force low that was depicted in
the latest analysis over the far northwest pacific near the
western aleutians. Ascat showed a decent sized area of strong- to
gale-force westerly winds associated with it focused at the area
within the 300-320 directional band. Guidance remains in decent
agreement and shows this feature tracking eastward to the date
line come Saturday. Surf associated with this feature should
remain below the advisory levels along north and west facing
shores as it fills in and peaks early next week.

Surf along east facing shores will gradually rise over the weekend
and early next week as the trades increase into the fresh to strong
category, especially next Tuesday as trades reach the strong
category across most waters locally. Limited fetch upstream of the
state, however, should keep the surf below advisory levels for east
facing shores through this time.

Small surf will continue along south facing shores with mainly
background southern pacific pulses moving through.

Hfo watches warnings advisories
High surf advisory until 6 am hst Saturday for north and west facing
shores of niihau, kauai, oahu, and molokai, and for north facing
shores of maui.

Small craft advisory until 6 pm hst Sunday for maalaea bay-
pailolo channel-alenuihaha channel-big island leeward waters-big
island southeast waters.

Small craft advisory until 6 pm hst Saturday for kauai northwest
waters-kauai windward waters-kauai leeward waters-kauai channel-
oahu windward waters.

Discussion... Houston
aviation... Powell
marine... Gibbs


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51208 8 mi43 min 79°F10 ft
NWWH1 - 1611400 - Nawiliwili, HI 24 mi31 min NE 11 G 16 77°F 1017.6 hPa
51201 - Waimea Bay, HI (106) 91 mi37 min 77°F10 ft

Wind History for Nawiliwili, HI
(wind in knots)    EDIT      (on/off)   Help
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last
24hr
N6
G11
N8
G14
NE10
NE8
G14
N9
G13
N7
G12
NE8
G11
NE10
G13
NW4
W3
G7
N3
G7
N6
G9
N7
G11
NE12
G16
NE9
G13
N5
W5
NE8
G12
E12
G15
NE5
G8
NE6
G9
NE9
G12
NE10
G14
NE9
1 day
ago
W4
N8
W6
G9
NE7
G12
N9
G12
NE11
G14
N6
G11
N4
W4
W4
W4
W5
W6
W6
W4
W5
SW4
W4
W3
SW4
W3
NW2
SW4
SW4
2 days
ago
E16
NE12
G15
W4
SW4
E4
E4
NE5
G8
NE8
G11
NE8
G11
NE8
G12
NE8
G13
NE7
G10
NE9
W6
W4
W4
W4
W3
W4
SW5
W4
W7
W3
W5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kekaha, Pacific Missile Test Facility Barking Sands, HI10 mi53 minNW 49.00 miA Few Clouds80°F72°F76%1016.7 hPa
Lihue, Lihue Airport, HI23 mi56 minNE 1410.00 miMostly Cloudy78°F69°F74%1017.4 hPa

Wind History from HBK (wind in knots)
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hr----------S4------E4SE3CalmE4CalmE3N4CalmE3CalmE3E4N4E3NW4
1 day agoNW6NW4NW5N11N16N13N7SE5E4NE3NE7N11NE4NE4CalmNE5NE4NE6N5Calm--------
2 days ago3W4NE3N4NW6N8NE6N4CalmNE3NE3E4E3E5E5E4E5E4NE5E4SE4E3NE3N3

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hanalei Bay
Click for Map
Fri -- 12:58 AM HST     Moonset
Fri -- 02:41 AM HST     0.78 feet Low Tide
Fri -- 06:50 AM HST     Sunrise
Fri -- 09:35 AM HST     1.64 feet High Tide
Fri -- 02:02 PM HST     Moonrise
Fri -- 04:32 PM HST     0.23 feet Low Tide
Fri -- 05:54 PM HST     Sunset
Fri -- 11:20 PM HST     1.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
10.90.80.80.811.11.31.51.61.61.51.310.70.40.30.20.30.50.811.11.2

Tide / Current Tables for Waimea Bay, Kauai Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Waimea Bay
Click for Map
Fri -- 12:59 AM HST     Moonset
Fri -- 04:21 AM HST     0.60 feet Low Tide
Fri -- 06:51 AM HST     Sunrise
Fri -- 10:43 AM HST     1.26 feet High Tide
Fri -- 02:02 PM HST     Moonrise
Fri -- 05:55 PM HST     Sunset
Fri -- 06:12 PM HST     0.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.80.80.70.60.60.60.70.811.11.21.31.210.80.60.40.20.20.20.30.50.70.8

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Kauai, HI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.