Friday, November16, 2018 L-36.com


Marine Weather and Tides
Kihei, 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 6:36AMSunset 5:45PM Friday November 16, 2018 11:06 AM HST (21:06 UTC) Moonrise 1:49PMMoonset 12:47AM Illumination 64% 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
PHZ119 Maalaea Bay- 947 Am Hst Fri Nov 16 2018
.small craft advisory in effect through Sunday afternoon...
Rest of today..North winds to 25 knots. Wind waves 3 feet.
Tonight..North winds to 25 knots. Wind waves 3 feet.
Saturday..Northeast winds to 25 knots. Wind waves 4 feet.
Saturday night..Northeast winds to 25 knots. Wind waves 4 feet. Isolated showers after midnight.
Sunday..Northeast winds to 25 knots. Wind waves 3 feet in the morning then 2 feet or less. Isolated showers in the afternoon.
Sunday night..North winds to 25 knots. Wind waves 2 feet or less.
Monday..North winds to 25 knots. Wind waves 3 feet.
Tuesday..Northeast winds to 25 knots. Wind waves 3 feet.
PHZ100 947 Am Hst Fri Nov 16 2018
Synopsis for hawaiian coastal waters.. High pressure far north northwest of the area will produce moderate to locally strong trade winds across the area through the weekend and on into early next week. A moderate size northwest swell will be moving through the coastal waters over the next couple of days.


7 Day Forecast for Marine Location Near Kihei, HI
   Hourly   EDIT   Help
location: 20.75, -156.45     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxhw60 phfo 162010
afdhfo
area forecast discussion
national weather service honolulu hi
1010 am hst Fri nov 16 2018

Synopsis
High pressure building far north of the islands will bring
strengthening northeast trade winds this weekend, with breezy trade
winds continuing into next week. The high will push a weakening
frontal boundary over the islands this weekend, while an upper-level
trough brings some instability. An increase in windward showers is
expected, with showers most active over kauai tonight, oahu and maui
county on Saturday, and on the big island Saturday night and Sunday.

Fewer windward showers are expected early next week.

Discussion
A surface high building N of the area the next couple of days will
push a dissipating frontal boundary over the islands from the N and
ne, which is expected to bring an increase in windward showers while
also bringing strengthening NE trade winds. An upper trough axis
currently near kauai will gradually slide E and weaken the next
several days, taking the layered mid- and high-level clouds of the
last couple days with it. In the meantime, instability associated
with the upper trough has brought isolated thunderstorms to waters
around kauai this morning, and a slight chance of thunderstorms has
been included today for windward portions of kauai and oahu and
adjacent waters.

Latest goes-17 visible imagery shows limited low-level moisture
immediately upstream of most islands, except for scattered to broken
showery low clouds near and NE of kauai. This moisture is associated
with an ene-wsw oriented diffuse band of low clouds, marking a
weakening frontal boundary associated with a surface low near the
gulf of alaska. While predominantly comprised of shallow low clouds
near the islands, a few thunderstorms developed along this boundary
near the islands early this morning. Stronger NE winds and slightly
cooler air lie N of the boundary, which will be moving down the
island chain through Sunday night.

Latest models indicate the boundary will be over kauai tonight,
spreading to oahu and portions of maui county on Saturday as the
high currently to the NW moves to a position N of the islands. The
boundary will spread to the big island Saturday night through Sunday
night, moving S of the big island by Monday. Although the upper
trough will progressively move E through the weekend, the mid-level
reflection (in the form of a weak closed low at 500 mb) will linger
sw of the islands. The associated mid-level cold pool and trough
will extend over the islands, bringing modest instability. The
increasing NE winds will ensure that most rainfall will occur along
windward slopes and coasts, with showers increasing in coverage as
the boundary moves across (and the instability may allow for a few
brief downpours).

The mid-level trough will dissipate early next week as the surface
high tracks slowly E well to the N of the islands. Locally breezy
ene trade winds will deliver passing clouds and showers to windward
areas. Winds may diminish and veer to the SE by the end of the week,
and showers may increase again as another low aloft develops nearby.

Aviation
High pressure will build northwest of the state resulting in
strengthening trade winds today. 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-
350. Strong directional and speed shear persists over the island
chain at these heights. Airmet tango remains posted for tempo
moderate turbulence in fl200-350 entire area.

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 and or tonight.

Marine
Trade winds will continue to strengthen today through Saturday as
high pressure builds in far north northwest of the area. A small
craft advisory is in effect over the typically windy waters around
maui county and the big island. These strong winds are expected to
continue into early next week. A new northwest swell is producing
seas above the 10 foot advisory threshold over exposed waters around
kauai, oahu and maui county. Thus a small craft advisory is in
effect for those waters as well.

A high surf advisory is in effect for shores exposed to the new
northwest swell. This swell is expected to peak today, then lower
gradually tonight and Saturday while swinging around to a more
northerly directions. Another small to moderate size northwest swell
is expected to gradually build on Monday, peak Monday night and
early Tuesday, then lower gradually into Wednesday. Small, mainly
background south swells are expected through the weekend and on into
the middle of next week. An uptick in short period choppy surf can
be expected along east facing shores beginning Friday as the trade
winds strengthen.

An upper level trough centered just southwest of the state will
allow for a slight chance of thunderstorms today over waters around
kauai and oahu.

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-kaiwi channel-maui county windward waters.

Discussion... Birchard
aviation... Foster
marine... Burke


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
KLIH1 - 1615680 - Kahului Bay, Maui, HI 10 mi43 min NE 13 G 16 79°F 1016.6 hPa
51205 19 mi37 min 80°F9 ft
51213 29 mi37 min 81°F3 ft
51202 - Mokapu Point, HI (098) 80 mi37 min 79°F8 ft

Wind History for Kahului, Kahului Harbor, HI
(wind in knots)    EDIT      (on/off)   Help
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
10
AM
Last
24hr
N8
N11
N12
N11
N11
G14
N10
G13
N11
N11
G14
NE8
G11
NE9
NE9
NE9
G14
NE9
G14
NE9
G13
NE6
G9
NE8
G11
NE7
G11
NE12
G15
N9
NE10
NE9
NE9
NE11
NE13
G16
1 day
ago
NE4
N5
N7
N7
N7
N8
NE8
N5
NW5
NW6
NW6
NW4
NW4
NE2
G5
NE7
NW5
E3
G6
W3
SW3
E1
W1
NW7
N6
N7
2 days
ago
NE13
G19
NE13
G16
NE15
G19
NE14
G17
NE14
G17
N11
G18
NE12
G15
NE10
NE13
NE7
G11
NE8
G11
NE7
NE6
G9
E5
G8
NW5
G9
SE4
S2
E2
SE2
SE4
SE2
G5
SE2
--
NE3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kahului, Kahului Airport, HI10 mi73 minNE 1310.00 miA Few Clouds81°F71°F72%1017 hPa
Lahaina - West Maui, HI21 mi82 minNNE 1315.00 miPartly Cloudy79°F69°F74%1016.6 hPa

Wind History from HOG (wind in knots)
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
10
AM
11
AM
Last 24hrNE17NE15NE17NE15NE12NE12N11NE7NE6NE8NE6NE8E8NE6NE9NE9NE7NE9NE7NE9NE10NE13NE13NE17
1 day agoN7N9N9N9NE10NE10NE6NE5N6CalmNW5E5CalmCalmW6SE5S3CalmE6CalmCalmN6N7NE10
2 days agoNE17
G20
NE13NE12
G20
NE18NE14
G19
NE13
G20
NE11NE9NE9NE7NE8NE6E3SE9SE7S4SE6SE6S4SE6SE4CalmN3N4

Tide / Current Tables for Kihei, Maui (Hawaii) (2)
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kihei
Click for Map
Fri -- 12:10 AM HST     1.32 feet High Tide
Fri -- 12:47 AM HST     Moonset
Fri -- 04:06 AM HST     0.78 feet Low Tide
Fri -- 06:36 AM HST     Sunrise
Fri -- 11:02 AM HST     1.94 feet High Tide
Fri -- 01:48 PM HST     Moonrise
Fri -- 05:44 PM HST     Sunset
Fri -- 05:57 PM HST     0.23 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
1.31.31.10.90.80.80.91.21.41.71.91.91.91.61.30.90.60.30.20.30.50.81.11.3

Tide / Current Tables for Makena, Maui Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Makena
Click for Map
Fri -- 12:47 AM HST     Moonset
Fri -- 03:56 AM HST     0.78 feet Low Tide
Fri -- 06:36 AM HST     Sunrise
Fri -- 10:31 AM HST     1.54 feet High Tide
Fri -- 01:48 PM HST     Moonrise
Fri -- 05:44 PM HST     Sunset
Fri -- 05:47 PM HST     0.23 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
0.90.90.80.80.80.80.91.11.31.41.51.51.41.20.90.70.40.30.20.30.50.70.91

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 (16,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Kohala, 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.