Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Manele, 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 6:19AMSunset 6:26PM Saturday September 23, 2017 11:59 AM HST (21:59 UTC) Moonrise 9:27AMMoonset 9:11PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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
PHZ118 Maui County Leeward Waters- 932 Am Hst Sat Sep 23 2017
Rest of today..East winds 15 knots. Wind waves 4 feet. Isolated showers late in the morning.
Tonight..Northeast winds 15 knots. Wind waves 3 feet. Isolated showers.
Sunday..East winds 15 knots. Wind waves 2 feet or less. Isolated showers in the morning.
Sunday night..Northeast winds 10 knots. Wind waves 2 feet or less. Isolated showers.
Monday..Northeast winds 10 knots in the morning becoming variable less than 10 knots. Wind waves 2 feet or less. Isolated showers in the morning.
Monday night..Northeast winds 10 knots. Wind waves 2 feet or less. Isolated showers.
Tuesday..Northeast winds 10 knots in the morning becoming variable less than 10 knots, then becoming northeast 10 knots. Wind waves 3 feet. Isolated showers.
Wednesday..Northeast winds 10 knots. Wind waves 3 feet. Isolated showers.
PHZ100 932 Am Hst Sat Sep 23 2017
Synopsis for hawaiian coastal waters.. A ridge of high pressure will move closer to the island chain over the 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 Manele, HI
   Hourly   EDIT   Help
location: 20.67, -157.6     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxhw60 phfo 231931
afdhfo
area forecast discussion
national weather service honolulu hi
931 am hst Sat sep 23 2017

Synopsis
Trade winds will gradually ease during the next few 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 as the surface trough moves through the islands. Gentle to
moderate trade winds will likely persist heading

Discussion
A stable trade wind flow is producing a somewhat dry pattern of
mainly windward rainfall. A 1026 mb surface high centered near
42n138w 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 6,000 to 7,000
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 modest rainfall of around a
tenth of an inch over windward slopes in the past 24 hours, with
standouts like waialeale collecting about a third 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
today.

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 passed 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 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 will redevelop across leeward
big island this afternoon and linger through early evening. 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 long-period pulse out of the southwest from the
tasman sea is expected by Sunday and could lead to a slight
increase in surf. For the extended forecast, strong to gale-force
southwest winds associated with a low in the tasman sea may lead
to another small southwest swell for Tuesday through midweek.

A small northwest swell will continue today before easing.

Another small reinforcement from that direction is expected to
fill 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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OOUH1 - 1612340 - Honolulu, HI 46 mi47 min N 8.9 G 13 82°F 81°F1016.8 hPa
51211 47 mi59 min 81°F3 ft

Wind History for Honolulu, HI
(wind in knots)    EDIT      (on/off)   Help
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
24hr
NE8
G13
E7
G12
N6
G16
SE5
G9
NE4
G11
NE5
G9
NE2
G5
NE7
G11
NE5
G8
E1
G4
E4
G7
NE2
G6
NE4
NE2
S1
NW4
S2
NW1
NE5
G9
--
NW1
G11
NE3
G7
SE7
G11
NE8
G12
1 day
ago
E7
G13
NE7
G14
NE7
G12
E4
G9
E8
G15
NE5
G13
NE6
G10
NE5
G12
NE4
G12
NE4
G7
E3
G7
NE7
G12
E4
G8
NE4
NE4
G8
NE3
G7
E1
G4
E3
NE5
G8
NE2
NE5
NE2
G9
NE5
G10
NE9
G13
2 days
ago
E9
G14
E7
G13
NE8
G12
NE7
G14
NE6
G12
NE7
G12
NE3
G12
E7
G12
NE7
G11
NE6
G9
NE6
G10
NE2
G6
NE3
G9
NE2
NE5
G11
NE2
NE2
G5
SE3
G6
NE3
G6
E2
G6
NE4
G9
NE6
G9
NE6
G10
NE6
G13

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lanai City, Lanai Airport, HI35 mi63 minNE 2010.00 miFair and Breezy80°F64°F60%1015.3 hPa

Wind History from HNY (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 24hrNE15
G20
N8NE16NE20
G24
NE20
G26
NE20NE17
G23
NE14
G21
NE13
G18
NE14NE8NE8NE9E6NE11NE16NE13NE13
G19
NE9NE14NE16
G23
NE18
G24
NE18
G24
NE20
1 day ago4NE17NE19NE20
G27
CalmNE21
G24
NE22NE18NE21NE17NE13NE14NE9E8NE10NE10
G15
NE15E8E4NE12NE18
G27
NE17
G24
SE7NE15
G18
2 days agoNE14
G21
NE18
G21
NE14
G20
NE15
G23
NE17
G27
NE21
G24
NE16
G22
NE13
G22
NE9E8NE15
G21
NE14NE13NE8NE10NE7E5NE5NE7NE6NE14
G19
NE13
G19
NE12
G17
5

Tide / Current Tables for Kaumalapau, Lanai Island, Hawaii
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kaumalapau
Click for Map
Sat -- 06:09 AM HST     2.02 feet High Tide
Sat -- 06:17 AM HST     Sunrise
Sat -- 09:24 AM HST     Moonrise
Sat -- 12:33 PM HST     0.50 feet Low Tide
Sat -- 05:57 PM HST     1.47 feet High Tide
Sat -- 06:22 PM HST     Sunset
Sat -- 09:08 PM HST     Moonset
Sat -- 11:58 PM HST     0.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.40.81.21.61.921.91.71.410.70.50.50.70.91.21.41.51.41.20.90.60.3

Tide / Current Tables for Kolo, Molokai Island, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Kolo
Click for Map
Sat -- 06:13 AM HST     1.81 feet High Tide
Sat -- 06:17 AM HST     Sunrise
Sat -- 09:25 AM HST     Moonrise
Sat -- 12:33 PM HST     0.58 feet Low Tide
Sat -- 06:02 PM HST     1.30 feet High Tide
Sat -- 06:23 PM HST     Sunset
Sat -- 09:08 PM HST     Moonset
Sat -- 11:57 PM HST     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.50.81.11.41.71.81.81.61.310.70.60.60.70.91.11.21.31.21.10.80.60.4

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 (17,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Molokai, 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.