Saturday, January25, 2020
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Marine Weather and Tides
Hickam Housing, 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 7:09AMSunset 6:18PM Saturday January 25, 2020 4:32 AM HST (14:32 UTC) Moonrise 7:59AMMoonset 7:19PM Illumination 0% Phase: New Moon; Moon at 0 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- 331 Am Hst Sat Jan 25 2020
.small craft advisory in effect through Sunday afternoon...
Today..Northeast winds 15 knots. Wind waves 4 feet. Northwest swell 10 feet increasing to 12 feet in the afternoon. Isolated showers.
Tonight..East winds 15 knots. Wind waves 5 feet. Northwest swell 13 feet. Isolated showers.
Sunday..East winds 15 knots. Wind waves 5 feet. Northwest swell 11 feet. Isolated showers.
Sunday night..East winds 15 knots. Wind waves 5 feet. Northwest swell 9 feet. Isolated showers.
Monday..East winds 15 knots. Wind waves 6 feet. Northwest swell 8 feet. Isolated showers.
Monday night..North winds 15 knots. Wind waves 6 feet. Northwest swell 7 feet. Isolated showers.
Tuesday..Northwest winds 15 knots in the morning becoming variable less than 10 knots, then becoming east 10 knots. Wind waves 4 to 5 feet. Northwest swell 7 to 8 feet.
Wednesday..Southeast winds 10 knots veering southwest in the afternoon, then becoming variable less than 10 knots. Wind waves 4 to 5 feet. Northwest swell 8 to 9 feet.
PHZ100 331 Am Hst Sat Jan 25 2020
Synopsis for hawaiian coastal waters.. A ridge of high pressure north of the state will keep trade winds in place through early next week. A front will approach from the northwest Monday night through Wednesday, shifting winds around to the east-southeast, with winds becoming light across the western islands. A large northwest swell will build from northwest to southeast down the island chain today, peak late this afternoon and tonight, then gradually lower through early next week.


7 Day Forecast for Marine Location Near Hickam Housing, HI
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location: 21.31, -157.91     debug


Area Discussion for -
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FXHW60 PHFO 251357 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 357 AM HST Sat Jan 25 2020

SYNOPSIS. Bands of showers associated with a dissipated cold front are drifting into windward and mountain sections of Kauai and Oahu this morning. These clouds and scattered showers will diminish through the morning hours. On Sunday, trade winds will veer towards the southeast direction over the western islands and the cloudy remnants of the front will drift northward away from the state. A stable light wind pattern will return from Monday into Tuesday with trade winds transitioning back to a dry land and sea breeze pattern. Another cold front approaches the western islands next Friday with wet weather trends forecast into next weekend.

DISCUSSION. Moderate trade winds have returned to the islands this morning pushing several cloud bands of scattered showers into windward and mauka sections of Kauai and Oahu. This shower activity will diminish through the morning hours. Elsewhere low cloud and showers linger across windward sections of the Big Island and east Maui this morning along a wind convergence zone just northeast of both islands. Trade wind weather with windward and mauka showers will continue for most islands through Sunday with higher shower trends forecast in the overnight to early morning time periods.

Monday through Thursday . A large scale trough settling in over the Central Pacific basin will weaken the high pressure ridge north of the islands. Trade winds will transition to light winds from Monday into Tuesday with local scale land and sea breezes developing over each island. A fairly stable atmosphere and background light southeasterly winds will keep rainfall to a minimum through Thursday.

Friday into next weekend . Long range guidance continues to show another cold front approaching the islands from the northwest. Timing and intensity details remain a bit fuzzy this far out in the forecast time period. However, the best chances for increasing clouds and showers will develop over the western islands with these higher precipitation trends reflected in our latest weather grids. Current American (GFS) and European (ECMWF) suggest a brief period of showers mainly affecting Kauai County. Due to run to run model differences on the movement of this frontal band our confidence in wind and weather solutions remains only fair at this time. Expect changes to our forecast grids in the extended range as this part of the forecast will likely evolve over time.

AVIATION. A weak dissipating stationary front will reside over the islands throughout the forecast period. This feature should allow light to occasionally moderate trade winds to persist across the region. Thus, expect isolated to scattered showers to mainly affect areas along the windward coasts and slopes. MVFR conditions may occasionally occur along the elevated terrain and cause mountain obscuration.

No AIRMETs are in effect at this time.

MARINE. A ridge of high pressure north of the area will keep moderate to locally strong trade winds blowing across most coastal waters through Monday. A front will approach from the northwest Monday night through Wednesday, shifting the low level winds around to the east-southeast. This will result in winds becoming light across the western islands, while moderate east to southeast winds prevail across the eastern end of the state. Another front approaching from the northwest during the latter part of next week will diminish winds further, with light and variable winds prevailing across most of the island chain. Seas are expected to rise to SCA levels across most of the marine area today as a new large northwest swell arrives. Trade winds will also strengthen to SCA levels across some of the windier channel waters and the waters south of the Big Island late today through Sunday. SCAs are now in effect for all Hawaiian waters except Maalaea Bay through Sunday, due to a combination of winds and seas. Some marine zones will likely hold on to SCA level seas into early next week.

Surf will keep pumping along north and west facing shores as a progressive weather pattern across the northern Pacific keeps a series of large northwest swells moving through the islands. A large northwest swell has already arrived at buoys 51001 and 51101 northwest of Hawaii, with long period forerunners beginning to arrive on Kauai. This swell will continue to fill in early this morning, then rapidly build from northwest to southeast down the island chain through the day, with surf peaking above warning levels this afternoon and tonight. This swell will be on a downward trend Sunday, but is expected to hold at warning levels during the day before dropping to advisory levels Sunday night. As this swell eases early next week, advisory level surf may hold through Monday before dropping below HSA thresholds Monday night and Tuesday. Over the Big Island, advisory level surf is expected along west facing shores this afternoon through Sunday night. Another large (but not quite as big) northwest swell will be possible during the middle to latter part of next week.

Surf along exposed east facing shores will remain rather small through the period due to the lack of persistent trades locally and upstream across the eastern Pacific.

Surf along south facing shores will remain small through next week. A couple background south swells expected over the weekend and again on Tuesday should be enough to keep things from going flat.

HFO WATCHES/WARNINGS/ADVISORIES. High Surf Warning until 6 PM HST Sunday for Niihau-Kauai Windward-Kauai Leeward-Waianae Coast-Oahu North Shore-Oahu Koolau-Molokai-Maui Windward West-Maui Central Valley-Windward Haleakala.

High Surf Advisory from noon today to 6 AM HST Monday for Kona- Kohala.

Small Craft Advisory until 6 PM HST Sunday for all Hawaiian waters except Maalaea Bay.



DISCUSSION . Bohlin AVIATION . JT MARINE . Jelsema


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OOUH1 - 1612340 - Honolulu, HI 2 mi50 min 72°F 78°F1018.1 hPa
51211 3 mi62 min 77°F2 ft
MOKH1 - 1612480 - Mokuoloe, HI 11 mi56 min 69°F 76°F1018.1 hPa
51212 13 mi32 min 77°F4 ft
51202 - Mokapu Point, HI (098) 14 mi32 min 77°F4 ft
51207 14 mi32 min 77°F4 ft
51210 14 mi32 min 76°F4 ft
51201 - Waimea Bay, HI (106) 27 mi26 min 73°F8 ft

Wind History for Honolulu, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Daniel K Inouye International Airport, HI3 mi39 minNNW 410.00 miMostly Cloudy71°F63°F76%1017.8 hPa
Oahu, Kalaeloa Airport, HI9 mi39 minNE 310.00 miMostly Cloudy71°F64°F79%1019 hPa
Kaneohe, Marine Corps Air Station, HI12 mi79 minWSW 410.00 miPartly Cloudy70°F66°F87%1017.3 hPa
Wheeler Air Force Base / Oahu, HI13 mi96 minWNW 410.00 miOvercast66°F64°F96%1017.3 hPa

Link to 5 minute data for PHNL

Wind History from HNL (wind in knots)
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Last 24hrW3N4NW3NW6N3NW5S6SW9SW9S9S8S6SW5S4N5N4CalmNW6NW45NW3CalmN3N4
1 day agoN3N4N4N4N3CalmS5S7S6S7S6SW5SW54CalmCalmNE5N3CalmN3NW3NW4CalmNW3
2 days agoN3N4N4N6N5CalmS7S7S8S8SE9SE9S7SE5S3CalmNE4N5NW5N4N4NW3NW4NW3

Tide / Current Tables for Honolulu, Oahu (Hawaii)
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Honolulu
Click for Map
Sat -- 04:43 AM HST     2.27 feet High Tide
Sat -- 07:10 AM HST     Sunrise
Sat -- 07:58 AM HST     Moonrise
Sat -- 11:56 AM HST     0.17 feet Low Tide
Sat -- 04:43 PM HST     0.76 feet High Tide
Sat -- 06:16 PM HST     Sunset
Sat -- 07:18 PM HST     Moonset
Sat -- 09:58 PM HST     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.611.522.22.32.11.81.30.90.50.20.20.20.40.60.70.80.70.50.30.100.1

Tide / Current Tables for Moku o Loe, Kaneohe Bay Oahu Island, Hawaii
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Moku o Loe
Click for Map
Sat -- 03:19 AM HST     2.37 feet High Tide
Sat -- 07:11 AM HST     Sunrise
Sat -- 07:58 AM HST     Moonrise
Sat -- 10:42 AM HST     0.37 feet Low Tide
Sat -- 03:19 PM HST     0.86 feet High Tide
Sat -- 06:17 PM HST     Sunset
Sat -- 07:19 PM HST     Moonset
Sat -- 08:44 PM HST     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.82.22.42.32.11.71.30.90.60.40.40.50.60.80.90.80.70.60.40.20.20.30.6

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 (9,2,3,4)
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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.