Monday, June21, 2021
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Marine Weather and Tides
Eleele, HI

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:49AMSunset 7:18PM Sunday June 20, 2021 9:55 PM HST (07:55 UTC) Moonrise 3:27PMMoonset 2:26AM Illumination 86% 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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PHZ112 Kauai Leeward Waters- 939 Pm Hst Sun Jun 20 2021
Rest of tonight..East winds 15 knots. Wind waves 3 feet. South swell 3 feet. Northwest swell 3 feet. Isolated showers.
Monday..East winds 15 knots. Wind waves 3 feet. SWell northwest 3 feet. Isolated showers through the day.
Monday night..East winds 15 knots. Wind waves 3 feet. SWell northwest 3 feet.
Tuesday..East winds 10 knots. Wind waves 3 feet. SWell northwest 3 feet.
Tuesday night..East winds 15 knots. Wind waves 3 feet. SWell northwest 3 feet.
Wednesday..East winds 15 knots. In the kaulakahi channel, east winds 10 knots in the morning becoming variable less than 10 knots. Wind waves 3 feet. SWell northwest 3 feet.
Wednesday night..East winds 15 knots. In the kaulakahi channel, northeast winds 10 knots in the evening becoming variable less than 10 knots. Wind waves 3 feet. SWell northwest 3 feet.
Thursday..East winds 10 knots. Wind waves 3 feet. SWell northwest 3 feet.
Friday..East winds 10 knots. Wind waves 3 to 5 feet. SWell northwest 3 to 4 feet.
PHZ100 939 Pm Hst Sun Jun 20 2021
Synopsis for hawaiian coastal waters.. A ridge northwest of the area will move southeast slowly.


7 Day Forecast for Marine Location Near Eleele, HI
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location: 21.9, -159.59     debug


Area Discussion for -
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FXHW60 PHFO 210647 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 847 PM HST Sun Jun 20 2021

SYNOPSIS. A weakening surface ridge north of the state will keep light to moderate trade winds and localized sea breezes over terrain sheltered leeward areas through Friday. Drier trends remain in the forecast from Monday onward due to a strong upper level ridge over the region.

DISCUSSION. Satellite imagery for this evening shows a weak upper low just south of the island of Kauai, and a cold front far north of the islands breaking down the ridge near the islands. Fairly stable clouds are shown drifting towards the islands on the weakening trade winds.

Weather conditions from Monday through Friday remain the same with light to moderate trade winds. Weaker large scale winds will allow local scale sea breezes to develop along terrain shelters leeward areas of each island. A strong high pressure ridge aloft, shown the the upper level streamlines, will keep the trade wind temperature inversion in the 5000 to 8000 foot range. Temperature inversions at these heights will tend to cap cloud tops and limit shower coverage over all islands. Brief passing showers are still possible with fairly limited rainfall activity. The Kona coast may see extended evening showers from sunset until midnight due to on-shore winds converging with the down slope mountain breezes.

The high pressure ridge strengthens north of the island chain on Saturday with a return to moderate to locally breezy trade winds expected through next weekend.

AVIATION. Light to locally moderate trade wind flow will persist through twenty four hours and beyond. Ragged clouds and scattered showers will favor east and northeast facing slopes and coasts, especially in the late night and morning hours.

The weakness of the background flow will allow localized sea breezes to dominate along leeward coasts in the afternoon and early evening hours. Sea breezes will promote afternoon and evening cloudiness over west and southwest facing slopes and coasts, especially those of the Big Island.

The air mass over the state is expected to become increasingly stable by midweek due to an exiting upper level low. This will further limit shower activity. Isolated MVFR conditions are to be expected in passing showers, otherwise VFR conditions will prevail throughout the forecast period and beyond.

No AIRMETs are currently in effect or anticipated at this time.

MARINE. A surface ridge northwest of the area is producing gentle to locally fresh trade winds over Hawaii coastal waters. Winds over the coastal waters will weaken further over the next few days as the ridge shifts slowly southeast. Winds will strengthen again late in the weak as high pressure builds northeast of the area.

The current south swell is forecast to peak tonight with surf above the advisory level along south facing shores. The swell will gradually subside through Tuesday. A couple more southern hemisphere swells will produce small surf along the south facing shores through the second half of the week. A new northwest swell will produce small surf along north and west facing shores tomorrow (Monday) with another small northwest swell expected Wednesday. The weak trade winds mean surf will be small along east facing shores through mid-week. Surf along east facing shores may increase a bit over the second half of the week as winds strengthen off California.

HFO WATCHES/WARNINGS/ADVISORIES. High Surf Advisory until 6 AM HST Monday for Niihau-Kauai Leeward-Waianae Coast-Kahoolawe-Maui Leeward West-Kona-Kauai South-East Honolulu-Honolulu Metro-Ewa Plain-Molokai Leeward South-Lanai Leeward-Lanai South-Maui Central Valley South-South Maui/Upcountry-South Haleakala-Big Island South-Big Island Southeast.



DISCUSSION . Bohlin AVIATION . Bedal MARINE . Donaldson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 13 mi56 min WSW 2.9 G 2.9 72°F 1019.5 hPa (+1.7)
51208 27 mi60 min 80°F5 ft
51201 - Waimea Bay, HI (106) 80 mi59 min 79°F4 ft

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI14 mi63 minENE 310.00 miLight Rain73°F70°F90%1019.2 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI15 mi65 minE 510.00 miFair75°F67°F76%1018.5 hPa

Link to 5 minute data for PHLI

Wind History from HLI (wind in knots)
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Last 24hrNE12NE11NE11NE10NE10NE9E9NE8NE7N7NE10NE13NE10NE11NE12E11NE12NE12NE11NE11NE11NE10NE11NE3
1 day agoNE10NE10NE10E10E9E10E10E8E8NE9E10NE10NE9NE10NE11NE11NE12NE10NE12NE12NE10NE10NE9NE12
2 days agoE11E11E10E10E11E10E12E12E11NE11E11NE10E11E10NE8NE11E11NE10NE10NE10NE8NE8NE9NE10

Tide / Current Tables for Port Allen, Hanapepe Bay, Kauai Island, Hawaii
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Port Allen
Click for Map
Mon -- 03:08 AM HST     Moonset
Mon -- 05:56 AM HST     Sunrise
Mon -- 06:21 AM HST     -0.29 feet Low Tide
Mon -- 01:36 PM HST     1.82 feet High Tide
Mon -- 04:32 PM HST     Moonrise
Mon -- 07:24 PM HST     Sunset
Mon -- 08:50 PM HST     0.27 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.50.30.1-0.2-0.3-0.3-0.10.30.81.21.61.81.81.71.41.10.70.50.30.30.30.5

Tide / Current Tables for Nawiliwili, Hawaii (2)
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Nawiliwili
Click for Map
Mon -- 12:01 AM HST     0.81 feet High Tide
Mon -- 03:07 AM HST     Moonset
Mon -- 05:55 AM HST     Sunrise
Mon -- 06:18 AM HST     -0.34 feet Low Tide
Mon -- 01:45 PM HST     2.05 feet High Tide
Mon -- 04:31 PM HST     Moonrise
Mon -- 07:23 PM HST     Sunset
Mon -- 08:47 PM HST     0.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.60.30-0.2-0.3-0.3-0.10.30.81.31.7221.91.61.20.80.50.40.30.40.5

Weather Map
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GEOS Local Image of Hawaii    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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