Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Wailea, HI

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:21AMSunset 6:40PM Sunday March 26, 2017 7:00 AM HST (17:00 UTC) Moonrise 5:32AMMoonset 5:40PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 334 Am Hst Sun Mar 26 2017
.small craft advisory in effect through Monday afternoon...
Today..North winds to 25 kt. Wind waves 3 ft.
Tonight..Northeast winds to 25 kt. Wind waves 3 ft.
Monday..North winds to 25 kt. Wind waves 2 ft or less.
Monday night..North winds 20 kt. Wind waves 2 ft or less.
Tuesday..Northeast winds 20 kt. Wind waves 2 ft or less.
Tuesday night..Northeast winds 20 kt. Wind waves 2 ft or less.
Wednesday..Northeast winds 20 kt. Wind waves 2 ft or less.
Thursday..Northeast winds 20 kt. Wind waves 2 ft or less.
PHZ100 334 Am Hst Sun Mar 26 2017
Synopsis for hawaiian coastal waters.. High pressure north of the islands will shift east into the early portion of the week as a cold front passes far north of the state.

7 Day Forecast for Marine Location Near Wailea, HI
   Hourly   EDIT   Help
location: 20.7, -156.43     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxhw60 phfo 261347
afdhfo
area forecast discussion
national weather service honolulu hi
345 am hst Sun mar 26 2017

Synopsis
A surface high to the north will move east through tomorrow, then
become nearly stationary far northeast of the islands. A ridge aloft
will remain over the islands through the middle of next week. By the
end of the week, a trough aloft and a front will approach from the
northwest.

Discussion
A 1028 mb high about 1000 miles northeast of honolulu near 32n 148w
is forecast to move east today, then become nearly stationary
tomorrow about 1500 miles northeast of honolulu near 35n 135w. A
surface ridge extending west from the high will remain north of the
islands through the week. The high will keep breezy trade winds
blowing over the islands today. A ridge aloft will remain over the
main hawaiian islands through the first half of the week, keeping
the weather quite dry.

A trough aloft will move eastward to the north of the islands
tomorrow. The surface high moving away to the east and the trough
aloft passing by will combine to weaken the trade winds tonight
through tomorrow. The trade winds will strengthen again on Tuesday,
but the trades won't get as breezy as they will be today. The
atmosphere will remain dry and stable through the middle of the
week, so rainfall will remain light.

Toward the end of the week, a deep trough aloft and an associated
front will approach from the northwest. The surface ridge will shift
south closer to the islands and the atmosphere will become more
moist and less stable. Showers will likely become more active late
in the week.

Aviation
Locally strong NE to E winds and a strong and low temperature
inversion will produce conditions favorable for low level
turbulence. Airmet tango will remain up through at least today for
ocnl mod turb southwest through west of the mountains of all
islands. Clouds and showers will remain sparse, soVFR ceilings and
visibilities will prevail.

Marine
Hazardous boating and beach conditions will continue into Monday
before trending down into mid week due to a combination of fresh to
strong trade winds and a large west-northwest (wnw; 300-310 deg)
swell that is currently building down the island chain this morning.

These conditions have led to a small craft advisory for all hawaiian
waters due to winds (25 to 30 kts, strongest in the channels) and/or
seas (10 ft or greater) through Monday. The large wnw swell will
generate life-threatening surf along exposed north and west facing
shores into Monday before slowly trending down into mid week.

For the building wnw swell, the latest pacioos nearshore buoy
observations are remaining in good agreement with the latest wave
model guidance. However, a few observations at the waimea buoy
spiked into the 9 to 12 ft range a couple of times through the
overnight hours. Although these random spikes in wave heights appear
to have been or could have been spurious (a few feet higher than the
fully exposed hanalei buoy), the north facing shores of oahu have
been added in the warning this morning. The west side of oahu was
left in the advisory, due to the anticipated shadowing associated
with this westerly swell direction. Elsewhere, wave heights are up
to around 9 ft at hanalei and around 7 ft at the pauwela buoy. The
offshore buoys northwest of kauai appear to have peaked with heights
ranging from 11 to 13 ft, which is the predicted peak of this swell
event.

Surf along east facing shores will remain small and choppy through
the upcoming week due to moderate to strong onshore winds
persisting.

Surf along south facing shores could see a slight increase late
today due to the previously discussed wnw swell wrapping around the
islands. A slight increase in surf along south facing shores will
also become a possibility Thursday through Saturday due to a long-
period swell (190 deg) associated with recent activity across the
southern pacific.

For the outlook, another large long-period wnw (310 deg) swell will
be possible across the islands Thursday night through the weekend.

The latest deterministic and ensemble guidance remain in decent
agreement over the next few days and depict a storm-force low
developing off the coast of japan Sunday night into Monday, then
tracking ene to the date line Tuesday night into Wednesday while
intensifying (to around 970 mb low). A large batch of gale-to-storm
force westerly winds focused toward the region through this time is
forecast with seas peaking within the 30 to 40 ft range. Swell
across the islands associated with this storm will likely lead to
another period of warning-level surf and advisory-level seas. More
details will follow in later packages this week as this system
evolves and confidence increases with regard to specifics on arrival
times and impacts.

Hfo watches/warnings/advisories
High surf warning until 600 am Monday for north and west facing
shores of niihau and kauai, north facing shores of oahu and west
facing shores of the big island.

High surf advisory until 600 am Monday for north and west facing
shores of molokai, west facing shores of oahu and north facing
shores of maui.

Small craft advisory through 600 pm Monday for all hawaiian waters.

Marine... Gibbs
remainder... Donaldson


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 14 mi42 min E 6 G 15 73°F 78°F1020.8 hPa
51205 22 mi51 min 76°F7 ft
51203 - Kaumalapau, HI (146) 31 mi45 min 78°F4 ft
51202 - Mokapu Point, HI (098) 83 mi56 min 76°F7 ft

Wind History for Kahului, Kahului Harbor, HI
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
NW10
G15
N12
G17
NE14
G17
NE12
G16
NE16
G22
NE17
G22
NE16
G24
N18
G23
NE15
G23
NE16
G21
NE16
G20
NE17
G23
NE15
G23
NE14
G17
NE11
G16
NE11
G15
E11
G14
NE14
G21
N12
NE11
G17
NE16
G23
NE15
G21
NE16
G20
NE15
G20
1 day
ago
E4
G7
NW4
NE4
G7
NE12
G17
NE11
G18
NE15
G21
NE12
G19
NE15
G21
NE17
G21
NE12
G22
NE17
G22
NE13
G19
NE11
G16
N6
G9
N4
N6
NE15
G20
N14
G18
N13
G16
N10
G16
N12
G19
N13
G17
N16
G20
N10
G13
2 days
ago
E4
NE3
G6
NE7
G16
NE11
G16
NE12
G16
NE13
G17
NE12
G17
NE13
G17
NE13
G17
NE15
G20
NE14
G18
NE15
G20
NE12
G16
NE15
G20
NE13
G17
E6
G10
NE9
E3
W1
W4
G8
N4
SE2
S3
NW6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kahului, Kahului Airport, HI14 mi66 minENE 12 G 1710.00 miFair73°F64°F76%1020.7 hPa

Wind History from HOG (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrNE6NE12NE14
G21
NE14
G24
E14
G22
NE17
G22
NE18
G28
NE21
G29
NE23
G34
E20
G30
NE18
G26
NE16
G23
NE13
G18
NE14
G22
E12
G20
NE7E7NE16
G23
NE13NE9NE14
G23
NE12
G23
NE14NE12
G17
1 day agoSE5CalmE7NE14
G20
E13
G20
E17
G25
E16
G22
NE14
G21
NE16
G25
E13
G20
NE15NE14NE9E4E4NE4NE16E5CalmCalmN3E5CalmNE9
2 days agoE7SE4E8NE14E15
G21
NE12
G19
E16
G24
NE15
G22
NE14NE14NE15
G20
E14
G21
NE7
G17
E10E7
G15
E5NE5SE4W4SE5SE5S6SE6NW5

Tide / Current Tables for Kihei, Maui (Hawaii)
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kihei
Click for Map
Sun -- 03:03 AM HST     2.08 feet High Tide
Sun -- 05:32 AM HST     Moonrise
Sun -- 06:24 AM HST     Sunrise
Sun -- 09:13 AM HST     -0.06 feet Low Tide
Sun -- 03:29 PM HST     1.68 feet High Tide
Sun -- 05:39 PM HST     Moonset
Sun -- 06:38 PM HST     Sunset
Sun -- 09:10 PM HST     -0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.61.92.121.61.10.50.1-0.100.30.71.11.41.61.61.410.50.1-00.10.4

Tide / Current Tables for Kuheia Bay, Kahoolawe Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Kuheia Bay
Click for Map
Sun -- 02:51 AM HST     1.99 feet High Tide
Sun -- 05:32 AM HST     Moonrise
Sun -- 06:24 AM HST     Sunrise
Sun -- 09:19 AM HST     -0.19 feet Low Tide
Sun -- 03:17 PM HST     1.55 feet High Tide
Sun -- 05:40 PM HST     Moonset
Sun -- 06:39 PM HST     Sunset
Sun -- 09:10 PM HST     -0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.61.921.81.50.90.40-0.2-0.10.10.611.41.51.51.20.80.40-0.1-0.10.3

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
cpac_satellite

GOES Local Image of Hawaii    EDIT
Geos

Wind Forecast for (13,3,4,5)
      (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.