Saturday, June12, 2021
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Marine Weather and Tides
Manele, 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 5:47AMSunset 7:15PM Saturday June 12, 2021 3:51 AM HST (13:51 UTC) Moonrise 7:42AMMoonset 9:31PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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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PHZ180 Hawaiian Offshore Waters- 1125 Pm Hst Fri Jun 11 2021
Rest of tonight..E winds 10 to 20 kt. Seas 6 to 7 ft.
Saturday..E winds 10 to 20 kt. Seas 6 to 7 ft.
Saturday night through Wednesday..E winds 10 to 20 kt. Seas 6 to 7 ft.
PHZ100 325 Am Hst Sat Jun 12 2021
Synopsis for hawaiian coastal waters.. A surface high pressure system will remain north of the islands through early next week. The high will weaken today resulting in slightly weaker trade winds that will last through the weekend.


7 Day Forecast for Marine Location Near Manele, HI
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location: 20.67, -157.6     debug


Area Discussion for -
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FXHW60 PHFO 121335 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 335 AM HST Sat Jun 12 2021

SYNOPSIS. High pressure north of the islands will keep moderate to occasionally breezy trade winds blowing into next week. Low clouds and showers will focus over windward areas, with showers most active during nights and mornings, when they will be more likely to spread leeward on the smaller islands. Daytime heating will produce clouds and a few showers over the leeward slopes of the Big Island during the afternoons and evenings.

DISCUSSION. Moderate to locally breezy trade winds are likely to persist through the weekend and into next week, initially supported by a high pressure cell centered far NNW of the islands. Although the E flank of the high will be impacted by a front and complex low in the NE Pacific this weekend, the associated low-level pressure gradient over the islands looks to remain tight enough to keep moderate trade winds in place. With daytime heating abetting vertical mixing, afternoons will still feature some locally breezy conditions. On the flip side, sheltered leeward areas will likely see fairly light overnight winds. As the NE Pacific low dissipates late this weekend, the high will move E and settle into a more typical position far NE of the islands during the early to middle part of next week, maintaining moderate trade winds.

With trade winds blowing, showery low cloud clusters will focus over windward portions of the islands, occasionally spreading into communities immediately leeward of the mountains. Showers will be most active during the nights and mornings, but a mid-level ridge over the area will preclude heavy showers through early next week. Guidance depicts a slow-moving destabilizing mid-level low developing near the islands by Tuesday, which could lead to an increase in shower coverage and intensity, especially as moisture associated with the aforementioned front nears Kauai and Oahu.

In the meantime, latest satellite images show a loosely organized NW-SE oriented band of showery and stable low clouds over and just upstream of the islands. This will likely clear most islands by mid-morning, with shower coverage diminishing in the afternoon. Model guidance indicates little in the way of organized moisture sources until the front arrives from the N early next week, and subsidence ahead of this feature may lead to reduced shower coverage on Monday before arriving on Kauai, and potentially Oahu, on Tuesday.

AVIATION. Breezy trades will continue to focus clouds, showers, and occasional MVFR conditions over the windward coasts and slopes of all the islands for the next several hours. Aviation conditions will improve during mid to late morning as the resident band of moisture shifts west of the area. Prevailing VFR can then be expected at all locations for the remainder of the day.

AIRMET Sierra for mountain obscuration remains in effect for all windward sections.

AIRMET Tango for lee turbulence remains in effect.

MARINE. A surface high is forecast to stay far north and northeast of the islands into the first half of next week, resulting in continuing trade winds through this stretch. The high is in the process of weakening that will cause a slight drop in the strength of the trades from locally strong to moderate by tonight. It will hold at moderate strength to about Monday night before bumping up a notch Tuesday into Wednesday. A Small Craft Advisory is in effect today for the selected waters of Maui County and waters south of the Big Island. Small Craft Advisory level winds will return by Tuesday.

A north to northeast pulse is slated to arrive Monday, bumping the surf along north facing shores and some east facing shores with a northern exposure into the small to moderate range. The weaker trade winds slightly lower surf in the small range for the east facing shores over the weekend and into early next week. Surf may increase a foot or so around the middle of next week when the trade winds are expected to return to locally strong. A series of small but long period south and southwest swells will maintain small surf along the south facing shores into next week.

HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 PM Saturday for Maalaea Bay, the Pailolo and Alenuihaha Channels and waters south of the Big Island.



DISCUSSION . Birchard AVIATION . JVC MARINE . Lau


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51213 32 mi55 min 80°F4 ft
OOUH1 - 1612340 - Honolulu, HI 46 mi51 min E 2.9 G 5.1 75°F 79°F1019.5 hPa (-1.0)
51211 47 mi51 min 79°F4 ft

Wind History for Honolulu, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lanai City, Lanai Airport, HI35 mi55 minNE 510.00 miOvercast70°F0°F%1018.8 hPa

Link to 5 minute data for PHNY

Wind History from HNY (wind in knots)
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Last 24hrN7N7E5E4E5NW6NW6566NE10NE16
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1 day agoNE3NE8N9N64N6NE144
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2 days agoNE5E6NE8E4S4NW5S7W6Calm6NE12
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Tide / Current Tables for Kaumalapau, Lanai Island, Hawaii
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Kaumalapau
Click for Map
Sat -- 01:01 AM HST     0.17 feet Low Tide
Sat -- 05:01 AM HST     0.64 feet High Tide
Sat -- 05:46 AM HST     Sunrise
Sat -- 07:38 AM HST     Moonrise
Sat -- 10:09 AM HST     -0.08 feet Low Tide
Sat -- 05:58 PM HST     2.30 feet High Tide
Sat -- 07:09 PM HST     Sunset
Sat -- 09:28 PM HST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.20.20.40.60.60.60.40.20-0.1-00.20.511.51.92.22.32.21.91.51.10.7

Tide / Current Tables for Kolo, Molokai Island, Hawaii
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Kolo
Click for Map
Sat -- 12:59 AM HST     0.17 feet Low Tide
Sat -- 05:04 AM HST     0.44 feet High Tide
Sat -- 05:46 AM HST     Sunrise
Sat -- 07:38 AM HST     Moonrise
Sat -- 10:07 AM HST     -0.08 feet Low Tide
Sat -- 06:01 PM HST     2.10 feet High Tide
Sat -- 07:10 PM HST     Sunset
Sat -- 09:30 PM HST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.20.20.30.40.40.40.30.1-0-0.1-00.20.50.91.31.722.121.81.410.6

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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