Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Haiku-Pauwela, HI

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:43AMSunset 7:01PM Thursday May 24, 2018 3:36 PM HST (01:36 UTC) Moonrise 2:59PMMoonset 2:38AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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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PHZ119 Maalaea Bay- 959 Am Hst Thu May 24 2018
.small craft advisory in effect through early Saturday morning...
Rest of today..Northeast winds to 25 knots. Wind waves 3 feet.
Tonight..Northeast winds to 25 knots. Wind waves 3 feet.
Friday..Northeast winds to 25 knots. Wind waves 3 feet.
Friday night..Northeast winds to 25 knots. Wind waves 3 feet. Isolated showers after midnight.
Saturday..Northeast winds to 25 knots. Wind waves 3 feet. Isolated showers in the morning.
Saturday night..Northeast winds to 25 knots. Wind waves 3 feet.
Sunday..Northeast winds 20 knots. Wind waves 3 feet.
Monday..Northeast winds 15 knots. Wind waves 2 feet or less. Isolated showers.
PHZ100 959 Am Hst Thu May 24 2018
Synopsis for hawaiian coastal waters.. A surface high north of the area will move east through early next week as a front approaches from the northwest. The front will dissipate by mid-week and a strong new high will build north of the area.

7 Day Forecast for Marine Location Near Haiku-Pauwela, HI
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location: 20.92, -156.28     debug


Area Discussion for -
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Fxhw60 phfo 241942
afdhfo
area forecast discussion
national weather service honolulu hi
942 am hst Thu may 24 2018

Synopsis
Breezy trade winds are expected to persist through Saturday, which
will focus clouds and showers over windward areas, with a few
brief showers carried over to leeward sections at times. The
trades are expected to ease somewhat from Sunday through early
next week. Trade showers may increase slightly from Friday night
through Saturday, with more widespread rainfall possible across
parts of the state starting next Tuesday.

Discussion
No significant changes to the forecast at this time, nor any
significant changes expected today. High pressure continues to
dominate the weather with breezy trade winds continuing. This high
pressure north of the islands will slowly shift to the east
starting tomorrow. By Sunday is will be far enough to the east,
with a front passing the islands to the north that trades will
likely ease a bit.

A new high pressure system will set up further north of the
islands Monday, and move to the east during the first half of the
new week. This will continue to keep trade winds on the lighter
side.

Meanwhile, an upper level trough west of the islands will move to
the east through the end of the week, and could help to enhance
trade wind showers as we head into the weekend. This trough
lingers near the western islands through the weekend and into
early next week. This will likely result in some increased shower
activity over what we have been experiencing, but at this time not
expecting any issues with rainfall totals.

A special weather statement continues to highlight the trace
ashfall potential across portions of the big island's kau
district. With trade winds expected to continue into the weekend,
continue to expect any ashfall to be focused over this area.

Aviation
MainlyVFR conditions are expected for all TAF sites today, though
passing low clouds and showers may bring brief MVFR ceiling and
vis conditions along the windward areas. There may be enough low
cloud coverage to warrant airmet mtn obsc along the windward
slopes at times later today.

Rather brisk trade winds will persist across the area today as a
strong high pressure passes far north of the islands. Airmet
tango series remains posted for low level turbulence over and
immediately south and west of mountains below 8000 feet on all
islands. These conditions are expected to persist through
Thursday.

Periodic explosive eruptions at kilauea halemaumau crater continue
to produce billows of volcanic ash at times, with the plume of
emissions predominately rising to slightly above the inversion
level and spreading to the southwest over kau district on the big
island. MVFR vis can be expected in this area. Sigmet tango series
for volcanic ash remains in effect.

Marine
A surface high north of the area will produce locally strong trade
winds through Friday evening. The trades will weaken from Saturday
through memorial day as the high moves east and a front approaches
from the northwest. Winds are expected to strengthen again during
the second half of next week as the front dissipates and a strong
new high builds north of the area. A small craft advisory (sca)
will likely remain in effect through at least Friday night for the
strong trade winds.

Surf will remain below advisory levels along all shores through
at least the middle of next week. A series of swells from the
tasman sea will keeping surf along south facing shores near the
summertime average. Rough surf along east facing shores will
subside early next week as trade winds weaken.

Hfo watches warnings advisories
Small craft advisory until 6 am hst Saturday for maalaea bay-
pailolo channel-alenuihaha channel-big island leeward waters-big
island southeast waters.

Small craft advisory until 6 am hst Friday for oahu windward
waters-oahu leeward waters-kaiwi channel-maui county windward
waters-maui county leeward waters.

Discussion... M ballard
aviation... Ts
marine... Donaldson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KLIH1 - 1615680 - Kahului Bay, Maui, HI 10 mi55 min NE 18 G 24 77°F 79°F1017.4 hPa
51205 10 mi67 min 77°F7 ft
51202 - Mokapu Point, HI (098) 82 mi63 min 77°F7 ft

Wind History for Kahului, Kahului Harbor, HI
(wind in knots)    EDIT      (on/off)   Help
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Last
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NE15
G21
NE18
G24
NE12
G18
NE12
G16
NE11
G16
NE13
G17
NE12
G17
NE12
G19
NE10
G13
NE11
G14
NE6
G11
NE9
G13
NE11
G16
NE9
G12
NE8
NE11
G14
N13
NE12
G16
NE13
G19
NE18
G23
NE17
G26
NE18
G26
NE20
G26
NE17
G26
1 day
ago
NE14
G23
NE14
G24
NE15
G19
NE12
G17
NE12
G18
NE10
NE9
NE12
G16
N9
E8
G12
NE7
G10
NE8
G11
NE8
G13
NE8
G11
NE9
G12
NE9
G12
NE7
G10
NE10
G14
NE17
G22
NE16
NE16
G23
NE13
G21
NE19
G24
NE13
G18
2 days
ago
NE16
G23
NE11
G21
NE16
G22
NE17
G23
NE19
NE15
NE13
G17
NE13
G16
NE13
G16
NE11
G16
NE14
G18
NE15
NE15
G22
NE13
G21
NE13
G18
NE18
NE17
NE17
G21
NE13
G20
NE9
G18
N11
G17
NE10
G18
NE9
G18
NE4
G12

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kahului, Kahului Airport, HI8 mi1.7 hrsENE 21 G 3310.00 miPartly Cloudy and Breezy81°F68°F66%1017.6 hPa
Lahaina - West Maui, HI20 mi47 minNE 20 G 2615.00 miPartly Cloudy and Breezy81°F66°F62%1017.9 hPa

Wind History from HOG (wind in knots)
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Last 24hrNE17
G27
NE17
G26
E17
G24
E12
G21
NE13NE11NE13NE13NE11
G20
NE10NE7NE8NE9NE9NE11NE13
G18
--NE9------NE21
G34
NE21
G33
NE22
G33
1 day agoNE13
G26
NE16
G26
NE15NE16NE15NE12NE9NE9NE9E12
G19
NE7NE7NE7NE7NE8NE10NE11NE13
G17
NE23
G28
NE16
G23
NE18
G26
NE15
G25
NE18
G30
NE20
G27
2 days agoNE18
G27
NE22
G27
NE20
G27
NE18
G22
NE14
G24
NE12NE9NE9NE9NE11NE8NE5E7E6NE11NE12
G17
NE11NE17NE19
G25
NE21
G25
NE19
G24
NE23NE16
G23
NE19
G27

Tide / Current Tables for Kahului, Kahului Harbor, Hawaii
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Kahului
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Thu -- 02:39 AM HST     Moonset
Thu -- 05:40 AM HST     0.09 feet Low Tide
Thu -- 05:45 AM HST     Sunrise
Thu -- 12:11 PM HST     1.56 feet High Tide
Thu -- 02:59 PM HST     Moonrise
Thu -- 05:36 PM HST     0.72 feet Low Tide
Thu -- 07:00 PM HST     Sunset
Thu -- 11:23 PM HST     1.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.51.10.70.30.10.10.20.50.91.21.51.61.51.31.10.90.70.70.91.11.41.61.8

Tide / Current Tables for Kihei, Maui (Hawaii)
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Kihei
Click for Map
Thu -- 02:39 AM HST     Moonset
Thu -- 05:45 AM HST     Sunrise
Thu -- 06:23 AM HST     -0.12 feet Low Tide
Thu -- 01:12 PM HST     1.73 feet High Tide
Thu -- 02:59 PM HST     Moonrise
Thu -- 06:52 PM HST     0.50 feet Low Tide
Thu -- 07:00 PM HST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.61.30.90.40.1-0.1-0.10.10.40.81.31.61.71.71.41.10.80.60.50.60.811.3

Weather Map and Satellite Images
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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.
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Wind Forecast for (21,6,7,8)
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Ground Weather Radar Station Kohala, HI
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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.