Tuesday, September28, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Wailua, HI

Version 3.4
NOTICE
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 6:21AMSunset 6:23PM Tuesday September 28, 2021 6:34 AM HST (16:34 UTC) Moonrise 12:00AMMoonset 1:10PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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
    EDIT      (on/off)   Help
PHZ113 Kauai Channel- 330 Am Hst Tue Sep 28 2021
Today..East winds 20 knots. Wind waves 4 feet. North swell 3 feet. Scattered showers.
Tonight..East winds 20 knots. Wind waves 4 feet. North swell 3 feet. Scattered showers.
Wednesday..East winds 15 knots. Wind waves 4 feet. North swell 3 feet. Isolated showers.
Wednesday night..East winds 15 knots. Wind waves 4 feet. North swell 3 feet. Isolated showers in the evening, then scattered showers after midnight.
Thursday..East winds 15 knots. Wind waves 4 feet. North swell 3 feet. Isolated showers.
Thursday night..East winds 15 knots. Wind waves 4 feet. North swell 3 feet. Isolated showers in the evening, then scattered showers after midnight.
Friday..Northeast winds 15 knots. Wind waves 4 feet. North swell 3 feet. Isolated showers.
Saturday..Northeast winds 10 knots. Wind waves 3 to 4 feet. North swell 3 feet. Isolated showers.
PHZ100 330 Am Hst Tue Sep 28 2021
Synopsis for hawaiian coastal waters.. High pressure far north of the state will begin to weaken and gradually shift eastward. This will result in the trade winds easing modestly through Wednesday.


7 Day Forecast for Marine Location Near Wailua, HI
   Hourly   EDIT   Help
location: 22, -159     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 281309 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 309 AM HST Tue Sep 28 2021

SYNOPSIS.

Breezy trades will decrease to moderate Wednesday and Thursday and will potentially become light by early next week. A typical trade wind pattern with showers focused over windward and mauka areas will prevail during this time.

DISCUSSION.

Breezy trades will persist for one more day, carrying the next batch of moisture over Windward Big Island this morning into this afternoon and the smaller islands later this evening. Improving conditions are likely by mid-afternoon for the Big Island as moisture quality diminishes and what moisture remains mixes upslope, leaving the lower slopes mostly dry into the evening hours. As the closed upper low presently north of the islands drifts directly overhead during Wednesday and Thursday, the local pressure gradient will diminish causing trades to decrease into the moderate category. The occasional shortwave rotating around the parent low and the elevated inversion may allow for brief upticks in trade wind showers during this time. Also of note, veered mid-level flow will carry increased moisture toward the Big Island by Thursday. The deeper moisture and weakly divergent flow aloft will favor a greater coverage of afternoon clouds showers over upslope sections of the Big Island, including the summits, during the latter half of the week. T-storm potential over the BI slopes late this week appears marginal but will be worth monitoring. Marginal 700-500MB lapse rates of around 6.5C/km can be steepened by diurnal heating of the higher elevations, but that potential will be entirely conditional on the extent of cloud cover that develops earlier in the day.

For the latter half of the weekend into early next week, longwave ridge amplification centered near the Dateline is modeled to force surface high pressure southward over the central Pacific, the lead edge representing a shallow cold front that will potentially reach the 30N-25N range on Sunday night. Should this materialize, trades would become light and potentially give way to a land/sea breeze pattern to start next week.

AVIATION. Surface high pressure N of the islands will move ESE over the next 24 hours or so, with breezy to locally strong ENE gradually easing in response. AIRMET Tango for low level turbulence over and downwind of the terrain remains posted, but it may be dropped later today or tonight.

The trade winds will deliver stable and showery low clouds that will primarily focus over windward coasts and slopes, producing isolated to tempo MVFR VIS/CIG in SHRA. Coverage may increase at times to warrant AIRMET Sierra for mountain obscuration as a cluster of showers approaching from the E moves through, initially affecting windward Maui and Big Island. VFR conditions will prevail over most leeward areas, with the exception of some afternoon and evening clouds and showers on the leeward slopes of the Big Island producing isolated MVFR conditions.

MARINE.

High pressure far north of the state will begin to weaken today and gradually shift eastward. This will cause the pressure gradient to relax over the state, resulting in the trade winds gradually easing through Wednesday. Winds are expected to drop below the Small Craft Advisory threshold in the typically windy zones around Maui County and the Big Island by this evening. A new high will build north of the state, bringing the return of moderate to breezy trade winds towards the end of the week. However, trades will likely weaken over the weekend as a front passes north of the state.

A small reinforcing north-northwest swell is expected to fill in through today, followed by a small short-period north swell towards the middle of the week. Another small north-northwest swell is possible towards the end of the week. Surf along south facing shores will gradually decline over the next few days, with only background swells expected throughout this week. A small Tasman swell from the southwest is possible Thursday into Friday. Surf along east facing shores will remain relatively small due to the lack of strong trade winds.

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



DISCUSSION . JVC AVIATION . Birchard MARINE . Kinel


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWWH1 - 1611400 - Nawiliwili, HI 19 mi47 min NE 9.9 G 13 76°F 86°F1018.6 hPa
51208 36 mi39 min 79°F5 ft
51201 - Waimea Bay, HI (106) 52 mi38 min 79°F4 ft

Wind History for Nawiliwili, HI
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
NW4
NE11
NE10
G14
NE10
G14
NE9
G14
NE11
G15
NE13
G17
NE14
G18
NE15
G19
NE12
G15
NE11
G17
NE9
G14
NE10
G16
NE11
G16
NE12
G19
NE9
G15
NE11
G16
NE9
G13
NE8
G12
NE9
G12
NE14
G17
NE11
G18
NE7
G14
NE8
G11
1 day
ago
NE12
G16
NE13
G17
NE11
G15
NE12
G15
NE12
G15
NE13
G17
NE15
G19
NE11
G19
NE14
G20
NE15
G20
NE13
G17
NE9
G15
NE9
G13
NE10
G16
NE10
G15
NE12
G16
NE11
G16
NE10
G14
NE9
G14
NE10
G14
NE11
G15
NE8
G12
NE7
G11
NE7
G10
2 days
ago
SW5
NE5
G9
NE11
G14
NE9
G14
NE11
G15
NE12
G16
NE12
G16
NE13
G17
NE15
NE10
G16
NE10
G13
NE9
G13
NE13
G17
NE11
G16
E21
E21
E17
G24
NE15
G21
NE14
NE10
G13
NE12
G16
NE12
G17
E15
NE11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lihue, Lihue Airport, HI19 mi42 minNE 1310.00 miMostly Cloudy75°F69°F82%1018.2 hPa

Link to 5 minute data for PHLI

Wind History from HLI (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrNE11NE12NE12NE12NE13NE14N14NE16NE16NE16NE14NE17NE17NE16NE19NE14NE17NE14NE13NE14NE16NE14NE15NE13
1 day agoE13E12NE11NE12NE12NE14NE13NE14NE16NE17NE15NE16NE18NE15NE16NE13NE15NE14NE13NE12NE13NE13NE12NE10
2 days agoNE9NE9NE11NE10NE13NE14NE12NE15NE13NE12NE14NE15NE15NE13E21
G27
E14E12NE16E15E13E13E14E13NE13

Tide / Current Tables for Hanamaulu Bay, Kauai Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hanamaulu Bay
Click for Map
Tue -- 01:05 AM HST     0.56 feet Low Tide
Tue -- 06:27 AM HST     Sunrise
Tue -- 09:56 AM HST     1.72 feet High Tide
Tue -- 01:11 PM HST     Moonset
Tue -- 03:58 PM HST     Last Quarter
Tue -- 06:27 PM HST     Sunset
Tue -- 06:33 PM HST     0.60 feet Low Tide
Tue -- 10:43 PM HST     0.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
0.60.60.60.70.811.21.41.61.71.71.71.51.41.10.90.80.70.60.60.60.60.60.6

Tide / Current Tables for Nawiliwili, Hawaii
   EDIT      (on/off)   Help   One Week of Data
Nawiliwili
Click for Map
Tue -- 12:55 AM HST     0.47 feet Low Tide
Tue -- 06:28 AM HST     Sunrise
Tue -- 10:10 AM HST     1.73 feet High Tide
Tue -- 01:11 PM HST     Moonset
Tue -- 03:58 PM HST     Last Quarter
Tue -- 06:27 PM HST     Sunset
Tue -- 08:41 PM HST     0.63 feet Low Tide
Tue -- 10:14 PM HST     0.63 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
0.50.50.50.60.811.21.41.61.71.71.71.61.41.210.90.80.70.70.60.60.60.6

Weather Map
       (on/off)   Help Weather Map
wmap_P
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.