Saturday, May30, 2020
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Marine Weather and Tides
Mililani Town, HI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:48AMSunset 7:11PM Saturday May 30, 2020 3:03 PM HST (01:03 UTC) Moonrise 1:18PMMoonset 1:24AM Illumination 65% 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
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PHZ115 Oahu Leeward Waters- 922 Am Hst Sat May 30 2020
Rest of today..East winds 15 knots. Wind waves 4 feet. North swell 3 feet.
Tonight..Northeast winds 20 knots. Wind waves 4 feet. North swell 3 feet.
Sunday..Northeast winds 15 knots. Wind waves 4 feet. North swell 3 feet.
Sunday night..Northeast winds 15 knots. Wind waves 4 feet. North swell 3 feet.
Monday..East winds 15 knots. Wind waves 4 feet.
Monday night..East winds 15 knots. Wind waves 3 feet. SWell south 3 feet. Isolated showers.
Tuesday..East winds 10 knots becoming northeast 20 knots in the evening, then becoming east 10 knots after midnight. Wind waves 3 to 4 feet. SWell south 3 to 4 feet. Isolated showers.
Wednesday..East winds 10 knots rising to 15 knots. Wind waves 3 to 4 feet. SWell south 3 to 4 feet. Isolated showers.
PHZ100 922 Am Hst Sat May 30 2020
Synopsis for hawaiian coastal waters.. A surface high to the north will remain nearly stationary through the weekend, then move northeast. The high will build back toward the islands Wednesday.


7 Day Forecast for Marine Location Near Mililani Town, HI
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location: 21.44, -158     debug


Area Discussion for -
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FXHW60 PHFO 301952 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 952 AM HST Sat May 30 2020

SYNOPSIS. A trade wind weather pattern can be expected through the weekend and on through all of next week. Passing showers will favor windward and mauka areas over the next few days with generally dry weather over most leeward locations. An increase in showers is expected Tuesday and Wednesday as moisture associated with an old frontal boundary interacts with island terrain.

DISCUSSION. High pressure is centered several hundred miles north northwest of the state. This places the islands in a moderate trade wind environment. The high will remain nearly stationary through Sunday night then move off to a position far northeast of the area late Monday through Wednesday. The will result in a slight decrease in trade wind speeds. The high is then forecast to rebuild due north of the area Thursday and Friday with an expected uptick in trade winds.

The airmass is rather dry and stable with an upper ridge centered several hundred miles to our north. Pockets of moisture embedded in the trades will provide for some light passing showers over windward and mauka areas with most leeward locations remaining generally dry. Moisture associated with the remnants of an old front are forecast to move through the area during the Tuesday through Wednesday time frame. An increase in shower activity is expected especially over windward and mauka a areas.

AVIATION. A strong ridge of high pressure north of the state will keep moderate, mostly dry trade winds in place through twenty four hours and beyond. Shower activity will be limited and focused mainly over north and east facing slopes and coasts. Light sea breezes are expected to develop across Leeward Big Island this afternoon and generate inland cumulus build-ups that will persist through the evening hours.

Isolated MVFR CIG and VIS are to be expected in brief showers. Otherwise, VFR conditions will prevail all areas. No AIRMETs are currently in effect or anticipated at this time.

MARINE. A high to the N will maintain moderate to locally fresh trade winds through the weekend, with winds near Small Craft Advisory (SCA) criteria in the windier areas, especially the Alenuihaha Channel. The trades will weaken Monday as the high moves NE, but will rebuild Wednesday as the high strengthens.

A S swell is expected to gradually build from Monday into Wednesday, then gradually diminish into Friday. Peak surf heights are expected to be large enough to warrant a High Surf Advisory (HSA) for S facing shores of all islands, potentially as early as Tuesday, but more likely Wednesday. Surf will remain well below HSA levels along other shores through the period, although a couple of small swells from the N and NW will keep surf from going flat along N facing shores. The recently updated Surf Discussion (SRDHFO) contains details on the swell sources.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Burke AVIATION . Bedal MARINE . Birchard


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51211 10 mi63 min 79°F2 ft
51212 11 mi33 min 80°F3 ft
MOKH1 - 1612480 - Mokuoloe, HI 11 mi87 min ENE 13 G 16 79°F 81°F1019.7 hPa
OOUH1 - 1612340 - Honolulu, HI 12 mi63 min E 6 G 13 81°F 79°F1019.1 hPa (-1.5)
51207 13 mi33 min 79°F4 ft
51210 13 mi33 min 78°F4 ft
51201 - Waimea Bay, HI (106) 17 mi33 min 78°F4 ft
51202 - Mokapu Point, HI (098) 17 mi33 min 79°F5 ft

Wind History for Mokuoloe, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wheeler Air Force Base / Oahu, HI3 mi67 minENE 1210.00 miMostly Cloudy81°F66°F61%1018.2 hPa
Daniel K Inouye International Airport, HI7 mi70 minNE 16 G 2210.00 miMostly Cloudy85°F64°F51%1018.8 hPa
Oahu, Kalaeloa Airport, HI9 mi4.2 hrsVar 610.00 miOvercast84°F64°F51%1021.3 hPa
Kaneohe, Marine Corps Air Station, HI12 mi2.1 hrsENE 1210.00 miPartly Cloudy90°F69°F50%1018.8 hPa

Link to 5 minute data for PHHI

Wind History from HHI (wind in knots)
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Last 24hrE13E10NE11E10E7CalmCalmW4W3NW4CalmCalmCalmW4N4W5N5NE4E8NE8E8E6NE11
G15
NE12
1 day agoE11
G18
E12NE7NE4E5E5N5W4NW3NW4NW3N4CalmNW4NE5NE4NE6NE3NE6NE8E10E11
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2 days agoE8
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E9SE3CalmCalmCalmCalmCalmCalmCalmW4NW4W6NW4NW4--E5NE8NE6E10E10E12
G19

Tide / Current Tables for Moku o Loe, Kaneohe Bay Oahu Island, Hawaii
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Moku o Loe
Click for Map
Sat -- 01:23 AM HST     Moonset
Sat -- 04:18 AM HST     0.03 feet Low Tide
Sat -- 05:49 AM HST     Sunrise
Sat -- 10:36 AM HST     1.04 feet High Tide
Sat -- 01:18 PM HST     Moonrise
Sat -- 03:33 PM HST     0.68 feet Low Tide
Sat -- 07:09 PM HST     Sunset
Sat -- 09:37 PM HST     1.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.70.40.100.10.20.40.70.91110.90.80.70.70.811.21.41.61.61.5

Tide / Current Tables for Waikane, Kaneohe Bay, Oahu Island, Hawaii
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Waikane
Click for Map
Sat -- 01:22 AM HST     Moonset
Sat -- 04:14 AM HST     0.03 feet Low Tide
Sat -- 05:48 AM HST     Sunrise
Sat -- 10:14 AM HST     1.24 feet High Tide
Sat -- 01:17 PM HST     Moonrise
Sat -- 03:29 PM HST     0.68 feet Low Tide
Sat -- 07:09 PM HST     Sunset
Sat -- 09:15 PM HST     1.81 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.70.40.100.10.30.60.91.11.21.21.10.90.80.70.70.81.11.41.71.81.81.6

Weather Map
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wmap_P
GEOS 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 (21,6,7,8)
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Ground Weather Radar Station Molokai, HI
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weather_mapweather_map weather_map

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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 numerous 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.