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Marine Weather and Tides
Version 3.4 |
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 5:40AM | Sunset 7:01PM | Monday June 14, 2021 5:48 PM HST (03:48 UTC) | Moonrise 9:27AM | Moonset 10:54PM | Illumination 26% |  |
PHZ123 Big Island Leeward Waters- 337 Pm Hst Mon Jun 14 2021
Tonight..West of the big island, northwest winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds 15 knots. Wind waves 6 feet. Isolated showers.
Tuesday..West of the big island, winds variable less than 10 knots becoming southwest 10 knots in the afternoon. NEar south point, east winds 15 knots. Wind waves 5 feet. North swell 3 feet. Isolated showers in the morning.
Tuesday night..West of the big island, northwest winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds 20 knots. Wind waves 6 feet. North swell 3 feet. Isolated showers in the evening.
Wednesday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 6 feet. North swell 3 feet in the morning. Isolated showers.
Wednesday night..West of the big island, west winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds to 25 knots. Wind waves 7 feet. Scattered showers in the evening. Isolated showers after midnight.
Thursday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 7 feet. Scattered showers in the morning. Isolated showers in the afternoon.
Thursday night..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 7 feet. Isolated showers.
Friday..West of the big island, winds variable less than 10 knots becoming west 10 knots in the afternoon, then becoming variable less than 10 knots. NEar south point, east winds 15 knots. Wind waves 6 feet. SWell south 3 feet. Isolated showers.
Saturday..Winds variable less than 10 knots west of the big island...east 15 knots near south point. Wind waves 6 feet. SWell south 3 to 4 feet. Isolated showers.
Tonight..West of the big island, northwest winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds 15 knots. Wind waves 6 feet. Isolated showers.
Tuesday..West of the big island, winds variable less than 10 knots becoming southwest 10 knots in the afternoon. NEar south point, east winds 15 knots. Wind waves 5 feet. North swell 3 feet. Isolated showers in the morning.
Tuesday night..West of the big island, northwest winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds 20 knots. Wind waves 6 feet. North swell 3 feet. Isolated showers in the evening.
Wednesday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 6 feet. North swell 3 feet in the morning. Isolated showers.
Wednesday night..West of the big island, west winds 10 knots in the evening becoming variable less than 10 knots. NEar south point, east winds to 25 knots. Wind waves 7 feet. Scattered showers in the evening. Isolated showers after midnight.
Thursday..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 7 feet. Scattered showers in the morning. Isolated showers in the afternoon.
Thursday night..Winds variable less than 10 knots west of the big island...east 20 knots near south point. Wind waves 7 feet. Isolated showers.
Friday..West of the big island, winds variable less than 10 knots becoming west 10 knots in the afternoon, then becoming variable less than 10 knots. NEar south point, east winds 15 knots. Wind waves 6 feet. SWell south 3 feet. Isolated showers.
Saturday..Winds variable less than 10 knots west of the big island...east 15 knots near south point. Wind waves 6 feet. SWell south 3 to 4 feet. Isolated showers.
PHZ100 337 Pm Hst Mon Jun 14 2021
Synopsis for hawaiian coastal waters.. High pressure north of the area will maintain moderate to locally strong trade winds through the week.
Synopsis for hawaiian coastal waters.. High pressure north of the area will maintain moderate to locally strong trade winds through the week.
7 Day Forecast for Marine Location Near Holualoa, HI
Hourly EDIT Help
location: 19.65, -156 debug
Area Discussion for -
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXHW60 PHFO 150126 AFDHFO
Area Forecast Discussion National Weather Service Honolulu HI 326 PM HST Mon Jun 14 2021
SYNOPSIS. Mainly moderate trade winds will persist through at least early next week as a surface high stays north and northeast of the islands. Remnants of a front will bring a boost of trade wind showers to Kauai and Oahu Tuesday night and Wednesday. An upper level disturbance may set off a slight chance of a afternoon thunderstorm over the higher elevations of the Big Island later this week. Otherwise, low clouds and showers will favor the windward and mountain areas.
DISCUSSION. A 1028 mb surface is currently located 900 miles north-northeast of Oahu. This high is expected to shift eastward in the next 2 to 3 days before stalling some 1400 miles northeast of the islands, then drift northward for the rest of the week. A disturbance pass far south of the islands may bring on a brief day or two of locally strong trades between Tuesday night and Wednesday night, affecting the east end of the island chain. Otherwise, moderate trades are expected to be the primary winds through the upcoming weekend.
Satellite imagery shows pretty much sunny skies across the smaller islands. The Big Island has some clouds across the leeward slopes and the northeast part of the island, including Kamuela and saddle areas. Partly cloudy skies rule the rest of the Big Island. An area of showers is expected impact the windward districts of the Big Island this evening, but that is about it. It should be a fine evening overall. Any increase in trade showers will come after 9 or 10 pm HST.
The band of clouds and showers from an old front continues to creep southward. It is about 200 nm northeast of Oahu as of 3 pm HST. Latest models points to an uptick in trade showers for Kauai and Oahu to commence Tuesday afternoon, and the core of the band to pass through these two islands Tuesday night and Wednesday morning. A more normal and typical trade wind shower pattern returns to these two islands by Wednesday afternoon.
For the second half of the week, an upper level low is expected drop down from the north on Thursday. This disturbance will bring on a more unstable air mass to the region to where some of these trade showers are enhanced, or be heavier in intensity, compared to the light showers we have been having. Also, the disturbance will favor clouds for the Big Island higher elevations and summits, including a slight chance of a afternoon thunderstorm. The GFS and ECMWF have pretty much the same idea in taking the upper low eastward from Kauai, although the GFS is a bit faster. The EC stalls the upper low over the central islands Friday, while the GFS takes it northeast of the Big Island. Both models then move the low northward over the upcoming weekend. Some differences but I believe the end result is the same, that is the enhance trade showers will persist into the weekend.
AVIATION.
The resident dry atmosphere, low inversion, and expanding coverage of mostly transparent cirrus will limit the development of clouds over the islands through Saturday. The exception will be Big Island where slightly better moisture may support a few showers over night. Prevailing VFR anticipated with little in the way of shower activity, even over windward slopes. Moderate trades persist.
No AIRMETs in effect.
MARINE. High pressure north of the islands will maintain moderate to fresh trade winds over most of the coastal waters through most of this week. Winds may reach Small Craft Advisory thresholds at times around Maui and the Big Island. Trade winds may decrease over the weekend as a front develops well northwest of the state.
Surf along south facing shores will remain small through Wednesday, then slowly rise, possibly reaching High Surf Advisory levels over the weekend. A short-period north swell will produce small surf along north facing shores Tuesday through Wednesday night. Surf along north facing shores will be minimal through the rest of the week, but a small northwest swell is possible early next week. Trade winds upstream of the islands will produce only small and choppy surf along east facing shores through the week.
HFO WATCHES/WARNINGS/ADVISORIES. None.
H Lau/JVC/Kino
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| KWHH1 | 28 mi | 55 min | WSW 2.9 G 5.1 | 79°F | 80°F | 1017.3 hPa | ||
| ILOH1 - 1617760 - Hilo, HI | 50 mi | 55 min | ENE 7 G 11 | 77°F | 79°F | 1017.4 hPa | ||
| KLIH1 - 1615680 - Kahului Bay, Maui, HI | 90 mi | 55 min | NNE 18 G 21 | 76°F | 79°F | 1018.1 hPa |
Wind History for Kawaihae, HI
(wind in knots) EDIT (on/off) Help| 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
| Last 24hr | W G4 | -- | -- | S | NW G4 | W | -- | NW G4 | N | N | N | N | E | E | SE | E G6 | N | W | W | W | SW | SW | SW | SW |
| 1 day ago | SW G16 | SW G11 | N G10 | SE G7 | E G6 | E G7 | S | N | NE | NE | NE | NE | NE | NE | N | E G12 | W G9 | SW G6 | SW G7 | SW G14 | SW | SW | SW | SW G6 |
| 2 days ago | -- | SW G6 | -- | W G6 | W | N G5 | N G7 | NE | E G11 | E G8 | E G16 | SE G12 | NE G10 | E G8 | N G7 | NW | W G8 | SW | SW G4 | -- | NW | -- | SW G9 | W |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Kailua / Kona, Keahole Airport, HI | 0 mi | 56 min | WSW 9 | 10.00 mi | Mostly Cloudy | 82°F | 66°F | 58% | 1016.7 hPa |
Link to 5 minute data for PHKO
Wind History from HKO (wind in knots)
| 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
| Last 24hr | S | S | S | SW | W | N | NW | NW | E | E | Calm | NE | Calm | Calm | S | S | SW | SW | SW | SW | W | W | SW | |
| 1 day ago | S | SE | SE | E | E | Calm | E | SE | E | E | E | SE | SE | E | SE | SE | S | S | SW | SW | SW | SW | SW | SW |
| 2 days ago | S | SE | SE | E | Calm | S | SW | SW | W | W | E | Calm | Calm | Calm | W | SW | SW | SW | SW | SW | SW | S | SW |
Tide / Current Tables for Kailua Kona, Big Island, Hawaii
EDIT Weekend mode (on/off) (on/off) Help One Week of DataKailua Kona
Click for Map
Mon -- 02:01 AM HST 0.16 feet Low Tide
Mon -- 05:45 AM HST Sunrise
Mon -- 06:34 AM HST 0.56 feet High Tide
Mon -- 09:26 AM HST Moonrise
Mon -- 11:09 AM HST 0.19 feet Low Tide
Mon -- 06:55 PM HST 2.13 feet High Tide
Mon -- 07:03 PM HST Sunset
Mon -- 10:54 PM HST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:01 AM HST 0.16 feet Low Tide
Mon -- 05:45 AM HST Sunrise
Mon -- 06:34 AM HST 0.56 feet High Tide
Mon -- 09:26 AM HST Moonrise
Mon -- 11:09 AM HST 0.19 feet Low Tide
Mon -- 06:55 PM HST 2.13 feet High Tide
Mon -- 07:03 PM HST Sunset
Mon -- 10:54 PM HST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.4 | 0.2 | 0.2 | 0.2 | 0.3 | 0.5 | 0.5 | 0.6 | 0.5 | 0.4 | 0.2 | 0.2 | 0.2 | 0.4 | 0.7 | 1 | 1.4 | 1.8 | 2.1 | 2.1 | 2 | 1.8 | 1.4 | 1 |
Tide / Current Tables for Kawaihae, Big Island, Hawaii
EDIT (on/off) Help One Week of DataKawaihae
Click for Map
Mon -- 02:09 AM HST 0.20 feet Low Tide
Mon -- 05:43 AM HST Sunrise
Mon -- 06:50 AM HST 0.66 feet High Tide
Mon -- 09:25 AM HST Moonrise
Mon -- 11:33 AM HST 0.20 feet Low Tide
Mon -- 07:03 PM HST Sunset
Mon -- 07:13 PM HST 2.32 feet High Tide
Mon -- 10:54 PM HST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:09 AM HST 0.20 feet Low Tide
Mon -- 05:43 AM HST Sunrise
Mon -- 06:50 AM HST 0.66 feet High Tide
Mon -- 09:25 AM HST Moonrise
Mon -- 11:33 AM HST 0.20 feet Low Tide
Mon -- 07:03 PM HST Sunset
Mon -- 07:13 PM HST 2.32 feet High Tide
Mon -- 10:54 PM HST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.5 | 0.3 | 0.2 | 0.2 | 0.4 | 0.5 | 0.6 | 0.7 | 0.6 | 0.5 | 0.3 | 0.2 | 0.2 | 0.3 | 0.6 | 1 | 1.5 | 1.9 | 2.2 | 2.3 | 2.3 | 2 | 1.6 | 1.2 |
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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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