Thursday, July29, 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 6:03AMSunset 7:14PM Thursday July 29, 2021 3:15 PM HST (01:15 UTC) Moonrise 11:33PMMoonset 11:27AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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PHZ113 Kauai Channel- 941 Am Hst Thu Jul 29 2021
Today..East winds 20 knots. Wind waves 5 feet. Isolated showers through the day.
Tonight..East winds 20 knots. Wind waves 5 feet. Isolated showers.
Friday..East winds 20 knots. Wind waves 5 feet. Isolated showers in the morning.
Friday night..East winds 15 knots. Wind waves 5 feet. Isolated showers after midnight.
Saturday..East winds 15 knots. Wind waves 6 feet. Isolated showers in the morning.
Saturday night..East winds 20 knots. Wind waves 6 feet. SWell southeast 3 feet. Isolated showers after midnight.
Sunday..East winds 20 knots. Wind waves 6 to 7 feet. SWell southeast 3 feet.
Monday..Northeast winds 20 knots. Wind waves 7 feet. Isolated showers.
PHZ100 941 Am Hst Thu Jul 29 2021
Synopsis for hawaiian coastal waters.. High pressure far north of the state will continue to produce fresh to strong trade winds into early next week.


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 292004 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI Issued by National Weather Service San Francisco CA 1004 AM HST Thu Jul 29 2021

SYNOPSIS. Moderate to breezy easterly trade winds will strengthen later today through the weekend. Clouds and showers will favor windward and mauka locations, with the best chances through the overnight and early morning periods. A return of drier trade wind conditions is anticipated Friday through early next week.

DISCUSSION. A ridge of high pressure will continue to build across the island today pushing the upper level trough that brought cloudy conditions to the western end of the state yesterday northward. High clouds have mostly cleared across the state with the exception of the Big Island that will continue to see high clouds from a disturbance south of the islands. At the surface, trade winds have returned to the region and are expected to remain moderate through tonight before strengthening on Friday as high pressure builds north of the state. A large area of moisture to the east is forecast to move into the eastern end of the state today. Anticipate windward and mauka showers through the morning hours as this area of moisture approaches the islands. In its wake, satellite data reflects dry air farther upstream of the Big Island. Guidance has initialized well with this and has the dry air moving through from east to west tonight through Friday. This dry air combined with rising upper heights will lead to more of a suppressed and stable environment this weekend, which will limit cloud/shower windward coverage. Similar conditions will carry into next week.

AVIATION. Surface high pressure north of the islands will maintain a moderate to locally strong trade wind flow through at least tonight. AIRMET Tango for low level turb, south through west of mountains, will continue through tonight as well. Scattered to broken low clouds and showers riding in with the trades upwind of the islands will result in brief MVFR ceiling and vis, favoring the windward and mountain areas. The lee side of the Big Island can expect a couple of afternoon and evening showers as well. Tops of these clouds and showers will be around 8k feet. No other AIRMETS are anticipated today.

MARINE. A high pressure system far north of the region will slowly drift eastward and build from Friday into the weekend. Trade winds will strengthen from Friday onward. A Small Craft Advisory (SCA) remains in effect for the typically windy waters around Maui County and the Big Island. This SCA may be expanded in coverage over the next two days.

Surf along east facing shores will remain small through Friday, then trend up over the weekend in response to strengthening trades locally and upstream of the Hawaiian Islands.

Southerly swell activity will remain rather low for this time of the year with just background swells expected from the south and southeast. Nearly flat conditions will continue for north and west facing shores into early next week. Buoy 51001 observations are not showing any reflection of the potential small, west-northwest swell this morning, which supports the summertime conditions continuing.

HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 PM HST Friday for Maalaea Bay- Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters.



DISCUSSION . CW AVIATION . H Lau MARINE . Bohlin


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 13 mi45 min NNE 12 G 15 80°F 1017.8 hPa
51208 27 mi49 min 80°F4 ft
51201 - Waimea Bay, HI (106) 80 mi48 min 80°F4 ft

Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI14 mi22 minNE 1210.00 miMostly Cloudy85°F72°F65%1017.3 hPa
Kekaha, Pacific Missile Test Facility Barking Sands, HI15 mi24 minWSW 810.00 miFair86°F69°F57%1016.1 hPa

Link to 5 minute data for PHBK

Wind History from HBK (wind in knots)
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Last 24hrW6S8S9S8CalmSE3S5E3E3SE3E4NE4E4NE4E4E4N3W4W7W7NW8W6W8W8
1 day agoSW11SW12NW6NW6W4CalmSE3CalmCalmCalmCalmE3NE3E3E4SE4SE3N3NW5NW6NW8NW8NW8W9
2 days agoW8SW7SW9W3W5CalmE4E5E3E4E4E5CalmE6NE5E4E3W5W7W7W7NW7SW6SW9

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
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Hanamaulu Bay
Click for Map
Thu -- 02:05 AM HST     0.21 feet Low Tide
Thu -- 06:08 AM HST     Sunrise
Thu -- 08:39 AM HST     1.09 feet High Tide
Thu -- 11:26 AM HST     Moonset
Thu -- 01:37 PM HST     0.76 feet Low Tide
Thu -- 07:18 PM HST     Sunset
Thu -- 07:39 PM HST     1.34 feet High Tide
Thu -- 11:31 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.30.20.30.40.60.811.11.110.90.80.80.80.80.91.11.21.31.31.21.10.8

Tide / Current Tables for Hanalei Bay, Kauai Island, Hawaii
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Hanalei Bay
Click for Map
Thu -- 12:39 AM HST     0.21 feet Low Tide
Thu -- 06:09 AM HST     Sunrise
Thu -- 07:28 AM HST     1.19 feet High Tide
Thu -- 11:26 AM HST     Moonset
Thu -- 12:11 PM HST     0.76 feet Low Tide
Thu -- 06:28 PM HST     1.44 feet High Tide
Thu -- 07:19 PM HST     Sunset
Thu -- 11:31 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.20.30.50.70.91.11.21.21.10.90.80.80.80.911.21.31.41.41.31.10.80.5

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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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