Monday, June1, 2020
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Marine Weather and Tides
Kailua, 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 5:46AMSunset 7:10PM Monday June 1, 2020 4:01 PM HST (02:01 UTC) Moonrise 3:18PMMoonset 2:44AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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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PHZ116 Kaiwi Channel- 316 Pm Hst Mon Jun 1 2020
Tonight..Northeast winds 15 knots. Wind waves 3 feet. Mixed swell south 3 feet and north 3 feet. Scattered showers.
Tuesday..East winds 15 knots. Wind waves 2 feet or less. Mixed swell south 4 feet and north 3 feet. Scattered showers.
Tuesday night..East winds 15 knots. Wind waves 3 feet. Mixed swell south 4 feet and north 3 feet. Isolated showers.
Wednesday..Northeast winds 15 knots. Wind waves 3 feet. Mixed swell south 4 feet and north 3 feet. Isolated showers.
Wednesday night..East winds 15 knots. Wind waves 4 feet. Mixed swell south 4 feet and north 3 feet. Isolated showers.
Thursday..East winds 20 knots. Wind waves 5 feet. Mixed swell south 4 feet and north 3 feet. Isolated showers through the day.
Thursday night..East winds 20 knots. Wind waves 6 feet. Mixed swell south 3 feet and north 3 feet. Isolated showers.
Friday..East winds 20 knots. Wind waves 6 feet. South swell 3 feet. Isolated showers.
Saturday..East winds 15 knots. Wind waves 6 feet. South swell 3 feet. Isolated showers.
PHZ100 316 Pm Hst Mon Jun 1 2020
Synopsis for hawaiian coastal waters.. High pressure far north of the islands will move off to the northeast through Tuesday. High pressure will strengthen late Tuesday, leading to fresh to locally strong trades Wednesday into the weekend.


7 Day Forecast for Marine Location Near Kailua, HI
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location: 21.42, -157.7     debug


Area Discussion for -
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FXHW60 PHFO 020147 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 347 PM HST Mon Jun 1 2020

SYNOPSIS. Moderate trades will briefly decrease tonight and showers will begin to increase as moisture from an old front rides in with the weakening trades. Breezy trade wind weather will return during the second half of the week, with scattered showers focused over windward and mauka areas and generally dry weather expected over most leeward locations.

DISCUSSION. Latest satellite imagery is showing patches of cumulus clouds moving toward the state this evening. These clouds are associated with an old frontal boundary and will likely produce light to moderate showers across the state tonight through Tuesday night. Leeward areas could also see a few passing showers during this time.

The current moderate trade winds will continue to decrease tonight and is expected to briefly become light late tonight into Tuesday morning. The combination of lighter winds and an increase in low-level moisture, will likely make temperatures feel slightly warmer than normal tonight and Tuesday. But the light winds will be short-lived as the high begins to shift back westward on Tuesday afternoon with moderate to locally breezy trades returning.

During the second half of the week, the high northeast of the state will continue to slowly drift westward and will bring a slight uptick in trade wind speeds. Breezy trade wind weather is expected through the weekend with light to moderate showers focused over windward and mauka areas mainly during the overnight and early morning hours.

AVIATION. Light to moderate trade wind flow will persist through twenty-four hours and beyond. Sustained winds of 25 kt are possible over summits and through channeled areas of the Big Island and Maui through early evening. Any associated turbulence is expected to be isolated.

Bands of showers embedded in the trade wind flow will continue to impact mainly north and east facing slopes and coasts. The next major band of showers is expected to reach Kauai and Oahu early this evening and the remainder of the islands by midnight. An AIRMET for mountain obscuration could become necessary for Kauai or Windward Big Island late tonight or early Tuesday.

Across Leeward Big Island, light sea breezes this afternoon are driving cumulus development over the interior of the island. Weak land breezes will take over by late evening and promote partial clearing overnight.

Brief MVFR CIG and VIS are possible in isolated moderate showers. Otherwise VFR conditions should prevail all areas through at least 020800Z.


MARINE. Trade winds will remain at moderate to locally fresh strength into Tuesday as surface high pressure far north of the state lifts away. Trade winds will gradually strengthen to fresh to locally strong levels late Tuesday and Wednesday as a surface ridge builds north of the islands. A Small Craft Advisory will likely be needed for typically windy waters around the Big Island and Maui during the second half of the work week.

An active spell of southern hemisphere swell is expected over the next several days. South shore surf will continue to run below June average through the evening, followed by a rise late tonight or early Tuesday as the long period forerunners of next south- southwest swell arrive. Though the bulk of this swell was aimed just east of the island chain, a significant rise in south shore surf is expected tomorrow, and advisory level surf is expected as the swell peaks later Tuesday and Wednesday. We will be closely watching the NOAA buoys south of the islands tonight to fine tune the forecast. The swell will decline Thursday and Friday and may be reinforced by a smaller south-southwest swell this weekend.

No significant sources of swell are noted from the north and east. The current, small north swell will be replaced by a small northwest swell from Tuesday to Thursday. With trade winds suppressed over and upwind of the islands, east shore surf is well below June average. Look for an increase to near to just below June normal Thursday through the weekend.

HFO WATCHES/WARNINGS/ADVISORIES. None.



DISCUSSION . Kino AVIATION . Bedal MARINE . Wroe


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51202 - Mokapu Point, HI (098) 1 mi62 min 79°F3 ft
51207 5 mi32 min 79°F3 ft
51210 5 mi32 min 79°F3 ft
MOKH1 - 1612480 - Mokuoloe, HI 5 mi86 min NNE 8 G 12 79°F 82°F1016.2 hPa
OOUH1 - 1612340 - Honolulu, HI 12 mi50 min N 6 G 12 82°F 80°F1015.5 hPa
51211 16 mi62 min 80°F2 ft
51212 25 mi32 min 81°F3 ft
51201 - Waimea Bay, HI (106) 28 mi32 min 79°F3 ft

Wind History for Mokuoloe, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kaneohe, Marine Corps Air Station, HI4 mi2.1 hrsNE 1010.00 miMostly Cloudy96°F71°F44%1015.3 hPa
Daniel K Inouye International Airport, HI13 mi69 minNE 8 G 1710.00 miPartly Cloudy87°F64°F48%1015.4 hPa
Wheeler Air Force Base / Oahu, HI18 mi66 minENE 1110.00 miMostly Cloudy83°F67°F60%1014.7 hPa
Oahu, Kalaeloa Airport, HI21 mi2.1 hrsVar 610.00 miMostly Cloudy87°F68°F53%1016.9 hPa

Link to 5 minute data for PHNG

Wind History from HNG (wind in knots)
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Last 24hrNE9E8NE13
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NE13E10NE11NE10NE9NE9E7NE6E5CalmNE7NE6NE8NE7NE9NE9NE8NE8NE10NE9NE9
1 day agoNE11NE11NE11E8NE7NE9E12E11E10E7E7E8E7E6E7NE9NE12NE9
G17
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2 days agoNE10NE10NE11E6E8E7E6E7E7E4E7E9E7E7E7E8E9E9NE10NE13NE12NE14NE13NE14

Tide / Current Tables for Waimanalo, Oahu Island, Hawaii
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Waimanalo
Click for Map
Mon -- 02:44 AM HST     Moonset
Mon -- 05:30 AM HST     -0.27 feet Low Tide
Mon -- 05:48 AM HST     Sunrise
Mon -- 12:20 PM HST     1.35 feet High Tide
Mon -- 03:18 PM HST     Moonrise
Mon -- 06:30 PM HST     0.32 feet Low Tide
Mon -- 07:09 PM HST     Sunset
Mon -- 11:32 PM HST     0.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.80.50.2-0.1-0.3-0.3-0.10.20.60.91.21.31.31.20.90.70.50.30.30.40.60.80.9

Tide / Current Tables for Hanauma Bay, Oahu Island, Hawaii
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Hanauma Bay
Click for Map
Mon -- 02:44 AM HST     Moonset
Mon -- 05:48 AM HST     Sunrise
Mon -- 05:54 AM HST     -0.32 feet Low Tide
Mon -- 12:36 PM HST     1.59 feet High Tide
Mon -- 03:18 PM HST     Moonrise
Mon -- 06:54 PM HST     0.37 feet Low Tide
Mon -- 07:09 PM HST     Sunset
Mon -- 11:48 PM HST     1.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.210.70.3-0-0.2-0.3-0.20.10.511.31.61.61.41.20.90.60.40.40.50.70.91.1

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 (22,6,7,8)
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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.