Monday, March1, 2021
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Marine Weather and Tides
Haleiwa, HI

Version 3.4
NOTICE
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 6:51AMSunset 6:37PM Monday March 1, 2021 4:20 PM HST (02:20 UTC) Moonrise 9:27PMMoonset 8:50AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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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PHZ114 Oahu Windward Waters- 327 Pm Hst Mon Mar 1 2021
.small craft advisory in effect through Tuesday afternoon...
Tonight..East winds to 25 knots. Wind waves 12 feet. Scattered showers.
Tuesday..East winds to 25 knots. Wind waves 12 feet. Isolated showers.
Tuesday night..East winds 20 knots. Wind waves 10 feet. Scattered showers in the evening, then isolated showers after midnight.
Wednesday..Northeast winds 20 knots. Wind waves 8 feet. Northwest swell 3 feet. Isolated showers.
Wednesday night..Northeast winds 20 knots. Wind waves 6 feet. Northwest swell 6 feet. Isolated showers.
Thursday..Northeast winds 15 knots. Wind waves 6 feet. Northwest swell 7 feet. Isolated showers in the morning, then scattered showers in the afternoon.
Thursday night..Northeast winds 20 knots. Wind waves 6 feet. Northwest swell 7 feet. Scattered showers.
Friday..East winds 20 knots. Wind waves 6 to 7 feet. North swell 7 to 8 feet. Scattered showers.
Saturday..East winds 20 knots. Wind waves 7 feet. North swell 5 to 7 feet. Scattered showers.
PHZ100 327 Pm Hst Mon Mar 1 2021
Synopsis for hawaiian coastal waters.. Strong high pressure far north of the state will produce strong to gale force trade winds and large rough seas through Tuesday. Trade winds will decrease late Tuesday and Wednesday, then rebuild Thursday and Friday.


7 Day Forecast for Marine Location Near Haleiwa, HI
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location: 21.6, -158.12     debug


Area Discussion for -
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FXHW60 PHFO 020159 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 359 PM HST Mon Mar 1 2021

SYNOPSIS. Windy trade winds will persist through at least Tuesday morning and lower to breezy speeds during the second half of the week. Passing showers will continue to be focused over windward and mountain areas over the next several days. A wet trade wind pattern is expected Thursday night into the weekend as an upper level disturbance moves over the state.

DISCUSSION. A 1042 mb high far north of the state will maintain windy trades through at least Tuesday morning and the Wind Advisory has been extended through early Tuesday morning. For the most part, winds will remain fairly windy through Tuesday and the Wind Advisory may need to be extended through the day Tuesday. Winds are expected to decrease to breezy speeds during the second half of the week. Trade winds may strengthen once again over the weekend into early next week.

As far as precipitation, afternoon soundings from Lihue and Hilo show a drier air mass with a more pronounced inversion at roughly 7000 feet. Showers will continue to be focused over windward and mountain areas primarily during the mornings and nights, but rainfall intensities will generally be light to moderate. The next notable increase in showers will likely occur Thursday night through the weekend as moisture from an old frontal boundary moves in across the state. At the same time, an upper level trough will move through the state and will bring unstable conditions across the state. A wet trade wind pattern is expected Thursday night through the weekend.

AVIATION. Flight category has improved across The Islands this afternoon as drier air has become entrenched across the area. Some improvement in low-level moisture tonight will lead to renewed expansion of windward shower activity and the potential for MVFR. However, drier mid-level air will limit intensity compared the last couple of days. Breezy to locally strong trades will continue to be the primary aviation hazard through Tuesday.

AIRMET Tango now includes tempo moderate mid-level turbulence between FL220 and FL300 for the entire state due to a mid-level trough that will slowly move through the state between this afternoon and Tuesday night.

AIRMET Tango remains in effect for moderate to severe lee turbulence. Tango also remains in effect for locally strong surface winds.


MARINE. Strong to locally gale force trade winds continue as strong high pressure holds far north of the state. A Gale Warning is in effect for the typically windy waters around the Big Island and Maui County, and a Small Craft Advisory (SCA) remains posted for all remaining waters due to a combination of winds and large seas. The surface high will weaken and be replaced by another surface high far northwest of the islands on Tuesday, starting a short-lived downward trend in the trade winds. The Gale Warning will be dropped by Tuesday afternoon, and although winds will be on a decline, the SCA will likely remain posted for all waters due to lingering high seas Tuesday night. The SCA may be briefly and entirely dropped by Wednesday as winds and seas decline to border line SCA levels. Trade winds should increase again on Thursday and Friday then hold through the weekend.

Large trade wind-driven seas will maintain high surf along east facing shores into Wednesday. Nearshore buoys have been holding at 10-12 ft at 10-11 seconds today, and these fully developed seas will continue to produce rough east shore surf well above the 8 foot High Surf Advisory (HSA) threshold into Tuesday. As trade winds over and upstream of the islands weaken, east shore surf will decline to border line HSA levels Wednesday, and the HSA will likely be dropped by Thursday. Expect east shore surf to be just below HSA levels late this week and during the weekend.

Surf will remain below advisory levels on other shores through much of the week. Exposed portions of north and south facing shores will pull in some wrapping trade wind swell and keep south shore surf near winter average into Tuesday, followed by a decline late Tuesday and Wednesday. A northwest swell will arrive on Wednesday, peak on Friday, then shift out of the north and decline during the weekend. The bulk of the swell will pass just east of the state, though north shore surf on some islands may reach HSA levels Friday and Saturday.

HFO WATCHES/WARNINGS/ADVISORIES. Wind Advisory until 6 AM HST Tuesday for Kauai-Oahu-Molokai- Lanai-Kahoolawe-Maui Windward West-Maui Leeward West-Maui Central Valley-Windward Haleakala-Leeward Haleakala-South Big Island-Big Island North and East-Kohala.

High Surf Advisory until 6 PM HST Tuesday for Kauai Windward- Oahu Koolau-Olomana-Molokai Windward-Maui Windward West-Windward Haleakala-South Big Island-Big Island North and East.

Gale Warning until 6 PM HST Tuesday for Maalaea Bay-Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters.

Small Craft Advisory until 6 PM HST Tuesday for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-Kauai Channel- Oahu Windward Waters-Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters-Maui County Leeward Waters-Big Island Windward Waters.



DISCUSSION . Kino AVIATION . JVC MARINE . Wroe


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
51212 19 mi54 min 76°F4 ft
51207 21 mi54 min 76°F10 ft
51210 21 mi54 min 76°F9 ft
MOKH1 - 1612480 - Mokuoloe, HI 21 mi44 min ENE 17 G 23 75°F 74°F1021.5 hPa
51211 23 mi50 min 76°F4 ft
OOUH1 - 1612340 - Honolulu, HI 25 mi50 min NE 8 G 18 75°F 76°F1021 hPa
51202 - Mokapu Point, HI (098) 27 mi54 min 76°F11 ft
51WH0 - WHOTS - Woods Hole Ocean Time-series 28 mi50 min 75°F1021.9 hPa

Wind History for Mokuoloe, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wheeler Air Force Base / Oahu, HI10 mi24 minENE 1710.00 miPartly Cloudy72°F59°F64%1020.9 hPa
Oahu, Kalaeloa Airport, HI20 mi27 minNE 12 G 2110.00 miFair79°F58°F49%1021.4 hPa
Daniel K Inouye International Airport, HI20 mi27 minENE 13 G 2110.00 miMostly Cloudy78°F57°F48%1020.6 hPa
Kaneohe, Marine Corps Air Station, HI21 mi83 minENE 19 G 2410.00 miA Few Clouds and Breezy78°F60°F54%1020 hPa

Link to 5 minute data for PHHI

Wind History from HHI (wind in knots)
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Last 24hrNE18E10E14CalmE12
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NE3NW6E11NE6CalmN4----NE8NE16
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1 day agoNE15NE6W4NE7NE7CalmNE6CalmCalmN3N4NE6SW4SE3CalmE3E6E3E6E11NE10--NE18
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2 days agoE13
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E11E7SE7E10E8E8E7CalmNE9E5W5NW6N4NE5E5CalmNE6N6NE11
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Tide / Current Tables for Haleiwa, Waialua Bay, Oahu Island, Hawaii
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Haleiwa
Click for Map
Mon -- 04:30 AM HST     1.40 feet High Tide
Mon -- 06:52 AM HST     Sunrise
Mon -- 08:49 AM HST     Moonset
Mon -- 09:59 AM HST     -0.09 feet Low Tide
Mon -- 05:16 PM HST     1.14 feet High Tide
Mon -- 06:36 PM HST     Sunset
Mon -- 09:27 PM HST     Moonrise
Mon -- 10:05 PM HST     0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.811.31.41.41.10.80.30-0.1-00.10.40.60.91.11.11.10.90.60.30.20.2

Tide / Current Tables for Laie Bay, Oahu Island, Hawaii
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Laie Bay
Click for Map
Mon -- 03:47 AM HST     1.85 feet High Tide
Mon -- 06:52 AM HST     Sunrise
Mon -- 08:48 AM HST     Moonset
Mon -- 10:18 AM HST     -0.02 feet Low Tide
Mon -- 04:33 PM HST     1.53 feet High Tide
Mon -- 06:36 PM HST     Sunset
Mon -- 09:26 PM HST     Moonrise
Mon -- 10:24 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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0.71.21.51.81.81.71.40.90.50.2-000.30.611.31.51.51.41.10.80.50.30.3

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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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