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Marine Weather and Tides
Pearl City, 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 6:48AMSunset 6:38PM Thursday March 4, 2021 9:13 PM HST (07:13 UTC) Moonrise 12:00AMMoonset 10:58AM Illumination 59% Phase: Waning Gibbous; Moon at 21 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- 342 Pm Hst Thu Mar 4 2021
.small craft advisory in effect from Friday morning through Saturday afternoon...
Tonight..Northeast winds 20 knots. Wind waves 4 feet. North swell 7 feet. Scattered showers.
Friday..Northeast winds 20 knots. Wind waves 5 feet. North swell 8 feet. Scattered showers.
Friday night..East winds 15 knots. Wind waves 6 feet. North swell 8 feet. Scattered showers.
Saturday..East winds 20 knots. Wind waves 7 feet. North swell 7 feet. Isolated showers.
Saturday night..East winds to 25 knots. Wind waves 8 feet. North swell 6 feet. Isolated showers in the evening, then scattered showers after midnight.
Sunday..East winds to 25 knots. Wind waves 8 feet. North swell 5 feet. Isolated showers.
Sunday night..East winds to 25 knots. Wind waves 9 feet. North swell 5 feet. Isolated showers in the evening, then scattered showers after midnight.
Monday..East winds to 25 knots. Wind waves 9 to 10 feet. North swell 5 to 6 feet. Scattered showers.
Tuesday..East winds to 30 knots. Wind waves 10 to 11 feet. North swell 4 to 6 feet. Scattered showers.
PHZ100 342 Pm Hst Thu Mar 4 2021
Synopsis for hawaiian coastal waters.. High pressure north of the islands will increase trade winds Friday and maintain fresh to strong easterly winds into next week.


7 Day Forecast for Marine Location Near Pearl City, HI
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location: 21.44, -157.96     debug


Area Discussion for -
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FXHW60 PHFO 050651 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 851 PM HST Thu Mar 4 2021

SYNOPSIS. A high to the north will maintain breezy trade winds over the area through the weekend. The trade winds carry showers from the remnant of a front over the islands. The trades will focus these showers over mainly windward areas. Next week a new high may produce stronger trade winds and deeper moisture will spread over the area from the southeast. Rainfall may become heavier and more widespread.

DISCUSSION. A 1033 mb surface high northwest of the main Hawaiian islands producing breezy northeast to east trade winds over the islands. Satellite imagery shows a 150 mile wide band of showery low cloud extending northeast from over Kauai and Oahu. Radars show frequent showers moving over Kauai, numerous showers moving over Oahu and scattered showers moving over Maui County and the Big Island of Hawaii. Through the day on Sunday breezy trade winds will continue. Windward areas will remain rather wet with some showers spreading leeward on the smaller islands, mainly during the nights and early mornings.

The global models are showing deeper moisture spreading over the islands from the southeast starting on Sunday. It is too soon to know the details of this developing pattern, but it looks as if rainfall will become heavier and more widespread starting on the Big Island, then spreading northwest over the other islands. Heavy rain and thunderstorms will be possible on the Big Island with ice and snow over the upper elevations.

Moisture over the islands will subside by the middle of next week. High pressure building far north of the area and a trough developing near the islands may produce very windy weather through mid-week.

AVIATION. Moderate to locally breezy trade winds will continue with high pressure far northwest of the islands. The remnants of a front over the islands is having the greatest impact over Kauai this evening, with clouds and showers producing MVFR conditions. As a result, AIRMET SIERRA is in effect for mountain obscuration. Expect this to persist throughout the night. Currently clouds and showers are focused over the windward sides of the remaining islands, but conditions remain predominantly VFR. Will be monitoring throughout the night in the event MVFR conditions become an issue on the other islands. High clouds are moving over the islands from west to east, and will likely remain overhead into Friday. No other AIRMETs are in effect or expected in the near term.

MARINE. A strong high pressure system far north of the Hawaiian Islands will drift slowly southeastward over the next several days. Trade wind speeds will increase into the fresh to strong range on Friday, and into the strong to near gale range from Sunday through Wednesday. Gale conditions may develop over the windier eastern waters and channels during this time period.

A Small Craft Advisory (SCA) remains in effect for waters around Kauai and windward Oahu this evening for elevated seas. The SCA will expand in coverage to windward waters of all islands and most eastern channels on Friday due to a combination of strengthening trade winds and elevated seas. SCA conditions will likely expand again to include most island waters from Sunday onward due to strengthening trade winds and building seas.

The current northwest swell will slowly decrease through Friday morning as an overlapping northerly swell moves into the region from Friday afternoon through Saturday. This new overlapping northerly swell will bring surf heights to near High Surf Advisory (HSA) levels from Friday afternoon through Saturday before slowly diminishing on Sunday. The forerunners of the next northwest swell will arrive on Sunday with overlapping northwest and north swell energy producing continued medium size surf along north and west facing shores on Sunday and Monday, decreasing to smaller size surf on Tuesday and Wednesday.

A bump in east shoreline surf will occur this weekend as the trade wind swell increases. Strengthening trade winds may build surf along exposed east facing shores to near HSA levels on Tuesday and Wednesday.

Background south swells will provide small surf to south facing shores through Wednesday.


HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 PM Saturday for waters around Kauai and Oahu Windward Waters.

Small Craft Advisory from 6 AM Friday to 6 PM Saturday for waters around the Big Island and Maui County

DISCUSSION . Donaldson AVIATION . M Ballard MARINE . Jelsema/Bohlin


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MOKH1 - 1612480 - Mokuoloe, HI 9 mi97 min ENE 6 G 9.9 73°F 74°F1018.7 hPa
51211 10 mi43 min 76°F2 ft
51207 11 mi47 min 76°F6 ft
51210 11 mi47 min 75°F6 ft
OOUH1 - 1612340 - Honolulu, HI 11 mi55 min NE 2.9 G 4.1 72°F 76°F1019.4 hPa
51212 13 mi47 min 76°F5 ft
51202 - Mokapu Point, HI (098) 15 mi47 min 76°F7 ft
51WH0 - WHOTS - Woods Hole Ocean Time-series 39 mi103 min 74°F1018.9 hPa

Wind History for Mokuoloe, HI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wheeler Air Force Base / Oahu, HI5 mi17 minNNW 510.00 miLight Drizzle66°F61°F86%1019.7 hPa
Daniel K Inouye International Airport, HI6 mi20 minN 310.00 miA Few Clouds71°F60°F68%1019.2 hPa
Oahu, Kalaeloa Airport, HI10 mi20 minVar 510.00 miFair71°F60°F68%1020.2 hPa
Kaneohe, Marine Corps Air Station, HI10 mi76 minNE 1110.00 miA Few Clouds72°F61°F68%1017.5 hPa

Link to 5 minute data for PHHI

Wind History from HHI (wind in knots)
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Last 24hrNW5NW6NW5NW5NW5NW5NW6NW5NW5N4NW3N3N6E8E8NE4E11E9E11N6N5N6N7NW5
1 day agoNE8NE11NE9SW5N8NE11NE11N5N7NW6CalmNE6E11E10NE10NE9E13NE9
G17
NE8NE6NE6NE5N4N4
2 days agoNE11
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W3NE3CalmNE6N4N3E3CalmCalmN4E8CalmE9E12NE11E16
G21
NE13E11NE10E6NE7NE14NE9

Tide / Current Tables for Moku o Loe, Kaneohe Bay Oahu Island, Hawaii
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Moku o Loe
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Fri -- 12:34 AM HST     Moonrise
Fri -- 04:04 AM HST     0.72 feet Low Tide
Fri -- 06:48 AM HST     Sunrise
Fri -- 07:10 AM HST     0.72 feet High Tide
Fri -- 11:47 AM HST     Moonset
Fri -- 01:32 PM HST     0.22 feet Low Tide
Fri -- 03:32 PM HST     Last Quarter
Fri -- 06:37 PM HST     Sunset
Fri -- 09:35 PM HST     1.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.210.80.70.70.70.70.70.70.60.50.40.30.20.20.30.60.81.21.51.81.91.91.8

Tide / Current Tables for Waikane, Kaneohe Bay, Oahu Island, Hawaii
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Waikane
Click for Map
Fri -- 12:33 AM HST     Moonrise
Fri -- 04:00 AM HST     0.72 feet Low Tide
Fri -- 06:48 AM HST     0.92 feet High Tide
Fri -- 06:48 AM HST     Sunrise
Fri -- 11:46 AM HST     Moonset
Fri -- 01:28 PM HST     0.22 feet Low Tide
Fri -- 03:32 PM HST     Last Quarter
Fri -- 06:37 PM HST     Sunset
Fri -- 09:13 PM HST     2.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.310.90.70.70.80.90.90.90.80.60.50.30.20.20.40.611.41.722.12.11.9

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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