Waimea, HI Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Waimea, HI

February 20, 2024 11:51 AM HST (21:51 UTC) Change Location
Sunrise 6:58 AM   Sunset 6:33 PM
Moonrise 3:38 PM   Moonset 4:48 AM 
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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.

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Marine Forecasts
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PHZ112 Kauai Leeward Waters- 924 Am Hst Tue Feb 20 2024

Rest of today - East winds 15 knots. Wind waves to 3 feet. Northwest swell 4 feet and north 5 feet.

Tonight - East winds 15 knots. Wind waves to 4 feet. Northwest swell 4 feet and north 4 feet.

Wednesday - East winds 20 knots. Wind waves to 4 feet. Northwest swell 5 feet.

Wednesday night - East winds 15 knots. Wind waves to 4 feet. Northwest swell 5 feet.

Thursday - Southeast winds 15 knots. Wind waves to 5 feet. Northwest swell 5 feet. Scattered showers, mainly in the morning.

Thursday night - East winds 20 knots. Wind waves to 6 feet. Northwest swell 5 feet. Scattered showers.

Friday - Southeast winds 20 knots. Wind waves around 6 feet. Northwest swell 4 feet. Numerous showers.

Saturday - East winds 20 knots. Wind waves around 6 feet. Northwest swell 5 feet. Numerous showers.

PHZ100 924 Am Hst Tue Feb 20 2024

Synopsis for hawaiian coastal waters - A weak surface high northeast of the islands will move slowly east through tonight. A strong high will build far north of the area Wednesday into the weekend, while a slow-moving cutoff low develops and lingers west of the islands. A shower band associated with the low may approach kauai from the west Friday and Saturday.


7 Day Forecast for Marine Location Near Waimea, HI
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Area Discussion for - Honolulu, HI
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FXHW60 PHFO 201957 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 957 AM HST Tue Feb 20 2024

SYNOPSIS
Moderate east to southeast trades will continue through Wednesday, with the best rainfall chances remaining over windward and mauka locations through the overnight and early morning periods.
Increasing moisture and a return of breezy easterly trades will support greater windward shower coverage later in the week through the weekend.

DISCUSSION
Moderate and rather dry easterly trade winds will prevail today.
Trades have eased and shifted out of the east to east-southeast as surface high pressure has moved away from the area to the northeast. The change in the flow has moderated the air mass, and dew points have risen from around 50 yesterday to the mid to upper 50s in most areas this morning, taking away the chill that was felt during the holiday weekend. Ridging aloft is maintaining very stable conditions, and moisture within the trade wind flow is still lacking, which points toward only isolated, light showers for most windward areas today.

Not much change is expected through Wednesday. Guidance suggests dew points will moderate into the lower 60s and precipitable water will climb back to around an inch, which is roughly seasonable normal. As a result, expect a modest increase windward rainfall, while sea breezes across sheltered leeward terrain may produce a brief afternoon shower.

Trade winds will increase Thursday and Friday as surface high pressure strengthens far north of the state. The direction of the winds will remain out of the east to east-southeast due to the presence of a strong cutoff low drifting eastward over the Northwest Hawaiian Island about 900 to 11000 miles northwest of Kauai. Depending on how much the winds are veered out of the southeast, some leeward areas from Maui to Kauai may be sheltered from the stronger winds, but most windward areas and much of the Big Island will be exposed to breezy and gusty trade winds by Friday. Expect typical windward rainfall and stable conditions.
However, the upper level trough supporting the cutoff low to the northwest will move closer to the state, likely producing an increase in high clouds over at least the western end of the state by Friday.

Uncertainty increases a bit over the weekend. East to east- southeast trades will be breezy and gusty with high clouds remaining overhead. A band of shallow moisture will bring an increase mainly windward showers, but the GFS and ECMWF vary on timing, with the GFS showing the feature moving through Saturday, about 24 hours faster than the ECMWF. The models also show increased moisture and instability nearing the western end of the island chain. The ECMWF has been showing higher chances of increased rainfall near Kauai, but odds appear low at this time.

SYNOPSIS
Moderate east to southeast trades will continue through midweek, with the best rainfall chances remaining over windward and mauka locations through the overnight and early morning periods.
Increasing moisture and a return of breezy easterly trades will support better windward shower coverage later in the week through the weekend.

MARINE
A weak surface high centered about 550 nm NE of the islands will move slowly E over the next 12-24 hours, with the associated ridge moving to a position just N of Kauai. This will support moderate to locally strong E to SE winds winds over portions of Big Island and Maui waters, where a Small Craft Advisory (SCA) is posted. Lighter E- SE winds will prevail elsewhere.

A strong high will build far N of the islands later Wednesday into the weekend while a deep-layer, slow-moving cutoff low develops and lingers over the Papahanaumokuakea Marine National Monument. This will promote fresh to strong E to SE flow, strongest over windward waters, and around the Big Island. Showers will be light and limited in coverage the next several days. A convergence band associated with the low to the W may approach Kauai waters early this weekend while a shower band associated with a dissipated front arrives from the NE, increasing shower potential.

Surf looks to remain below High Surf Advisory (HSA) levels along along all shores for the next several days. Several pulses of moderate, medium- to long- period NW swell will arrive the next couple of days, while a diminishing N swell fades out. A fast- moving but potent low moving through the Aleutian Islands the next couple of days will send a moderate sized, long- period NNW swell that will arrive over the weekend, with peak surf heights potentially reaching HSA levels. A strong, slow-moving low between Hawaii and California will have a limited fetch aimed toward Hawaii, but some medium- period NNE swell will also be possible next weekend, biggest on the E end of the island chain. The aforementioned increased E/SE winds will lead to increasingly rough and choppy surf along windward shores the next couple of days.

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




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NWWH1 - 1611400 - Nawiliwili, HI 17 mi51 min E 6G9.9 74°F 74°F30.23


Wind History for Nawiliwili, HI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
PHBK BARKING SANDS PMRF,HI 8 sm60 minvar 0310 smClear81°F52°F37%30.19
PHLI LIHUE,HI 18 sm58 minE 0810 smClear79°F57°F48%30.23
Link to 5 minute data for PHBK


Wind History from HBK
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Tide / Current for Waimea Bay, Kauai Island, Hawaii
   
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Waimea Bay
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Tue -- 01:52 AM HST     1.60 feet High Tide
Tue -- 04:48 AM HST     Moonset
Tue -- 07:06 AM HST     Sunrise
Tue -- 09:37 AM HST     0.14 feet Low Tide
Tue -- 01:58 PM HST     0.46 feet High Tide
Tue -- 03:37 PM HST     Moonrise
Tue -- 06:38 PM HST     Sunset
Tue -- 07:12 PM HST     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Waimea Bay, Kauai Island, Hawaii, Tide feet
12
am
1.4
1
am
1.5
2
am
1.6
3
am
1.5
4
am
1.3
5
am
1
6
am
0.7
7
am
0.5
8
am
0.3
9
am
0.2
10
am
0.1
11
am
0.2
12
pm
0.3
1
pm
0.4
2
pm
0.5
3
pm
0.4
4
pm
0.3
5
pm
0.2
6
pm
0.1
7
pm
0
8
pm
0.1
9
pm
0.2
10
pm
0.5
11
pm
0.8



Tide / Current for Port Allen, Hanapepe Bay, Kauai Island, Hawaii
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Port Allen
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Tue -- 01:36 AM HST     1.77 feet High Tide
Tue -- 04:48 AM HST     Moonset
Tue -- 07:06 AM HST     Sunrise
Tue -- 09:22 AM HST     0.15 feet Low Tide
Tue -- 01:42 PM HST     0.51 feet High Tide
Tue -- 03:37 PM HST     Moonrise
Tue -- 06:38 PM HST     Sunset
Tue -- 06:57 PM HST     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Port Allen, Hanapepe Bay, Kauai Island, Hawaii, Tide feet
12
am
1.6
1
am
1.7
2
am
1.8
3
am
1.6
4
am
1.4
5
am
1.1
6
am
0.7
7
am
0.5
8
am
0.3
9
am
0.2
10
am
0.2
11
am
0.3
12
pm
0.4
1
pm
0.5
2
pm
0.5
3
pm
0.4
4
pm
0.3
5
pm
0.2
6
pm
0.1
7
pm
0
8
pm
0.1
9
pm
0.3
10
pm
0.6
11
pm
1




Weather Map
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GEOS Local Image of Hawaii   
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South,Kauai/Honolulu,HI



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