Wednesday, April8, 2020
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Marine Weather and Tides
Port Hueneme, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:32AMSunset 7:24PM Wednesday April 8, 2020 10:20 AM PDT (17:20 UTC) Moonrise 8:25PMMoonset 7:15AM Illumination 99% Phase: Full Moon; Moon at 16 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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PZZ650 East Santa Barbara Channel From Pt. Conception To Pt. Mugu Ca Including Santa Cruz Island- 907 Am Pdt Wed Apr 8 2020
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 7 seconds. Slight chance of showers.
Tonight..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 6 seconds. Chance of showers.
Thu..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 7 seconds. Showers.
Thu night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 8 seconds. Chance of showers in the evening, then slight chance of showers.
Fri..NE winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 11 seconds. Slight chance of showers in the morning.
Fri night..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 2 ft at 9 seconds.
Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 2 to 4 ft.
Sun..W winds 15 to 20 kt. Combined seas 2 to 3 ft.
PZZ600 907 Am Pdt Wed Apr 8 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z, or 9 am pdt, a 1011 mb low pressure center was located near las vegas with a cold front over southeastern california.


7 Day Forecast for Marine Location Near Port Hueneme city, CA
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location: 34.1, -119.1     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 081640 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 940 AM PDT Wed Apr 8 2020

SYNOPSIS. 08/312 AM.

Scattered rain and mountain snow showers will continue through early Friday with light snow on the major passes this morning. The weekend will be dry with a slow warming trend.

SHORT TERM (TDY-FRI). 08/939 AM.

Forecast more or less in good shape but did a minor update to increase pops in the Antelope Valley and the mountains today with the wrap around moisture mostly impacting the interior. There are some very isolated showers at lower elevations this morning, namely in the south bay area of srn LA County that are dropping some brief moderate rain but for the most part the lower elevations are pretty dry. The wrap around moisture will start to fill in over the coast/valleys but that is not expected to happen until later this afternoon or evening.

Should be a pretty soggy Thursday everywhere from SLO County through LA County, eventually tapering off from west to east Thursday night into Friday. More details with the afternoon update.

***From Previous Discussion***

The upper low responsible for all of this week's weather has started its eastward trek and is now to 60 miles south of Santa Rosa island. All mdls (xcp the HRRR) agree that the upper low will approach the coast around noon. It will then accelerate to the ENE and by late afternoon it will be halfway to the NV state line and will be over the southern portion of the NV/CA state line after midnight Thursday morning where it will sit and spin through most of the day Thursday. The low will then make a return engagement Thursday night as it retrogrades back to the coast Thursday night. This very pesky low will then finally exit the area to the SE on Friday and Friday evening.

Rain will be circling the forecast area like horses on a merry go round today but will be just outside of the forecast area resulting in a mostly dry day. The best chc of rain will be over the eastern edge of LA county and the mtns. The flow pattern will change later this afternoon as the low center moves into the state and NE flow sets up over SLO/SBA/VTA/LA counties. Rain will increase across the interior sections and the northern portions of the mtns (eastern mtns in SLO) in all four counties. This up tick in rainfall will last through the night and most of Thursday as well. There is a chc that some showers will make it over the mtns and into the coasts and vlys but if any do they will not produce much rainfall.

This system has no history of thunder and as it has spun and meandered around the area the cool pool of air aloft has modified and increased the stability of the atmosphere. Will be removing the chc of TSTMs in the morning update.

Some cooler air will advect into the mtns this morning and the snow level will fall to 4500 feet. This is low enough to bring some rain mixed with snow to the Grapevine but at this time it does not look low enough to create serious problems for motorists on I-5. Snow levels will then rise to 5000 to 5500 feet by this afternoon. Travel is not recommended into the higher reaches of the mtns where a Winter Storm Warning is in effect. A foot or more of new snow is possible above 6000 ft. A Winter Storm Warning for the LA and VTA mtns is in effect until 500 AM on Friday and a Winter Weather Advisory is also in effect until 500 AM on Friday for the SBA mtns. Please see the product LAXWSWLOX for more details.

Very low confidence in rainfall amounts over the next 24, 48, and 72 hours. The showery nature of the rainfall will make the amounts very non-homogeneous. The usual problems with getting the vagaries of the movement of upper low correct will also contribute to the uncertainty of where and how much. The current consensus forecast call for a quarter to half inch of additional rain to fall over the coasts and vlys (This may be overdone, the forecast counts on quite a bit of rain make it over the mtns and fall on Thursday and would not be surprised if these cst/vly numbers will need lowering) and double those amounts for the interior sections and northern portions of the mtns. Two inch amounts of rain or liquid equivalent are possible across the north facing and highest elevations of the eastern portions of the San Gabriel mtns. Rainfall rates should not exceed a half inch per hour and will more likely top out at a quarter inch per hour.

There will be some peeks of sunshine today and the majority of the clouds will orbit outside of the four county area. Thursday will be a cloudy day as the upper low spins clouds over the area from the NE.

Across the csts and vlys: Max temps today will mostly be in the lower to mid 60s fall a few degrees Thursday to a few degrees either side of 60.

The upper low will depart to the SE on Friday and will take the rain and clouds with it. It will likely be partly cloudy and dry over SLO and SBA counties. LA county will start out cloudy with some chc of rain showers but these will clear and dry out by early afternoon. VTA county will clear and dry out quicker than LA. Max temps will rebound on Friday and will top out in the mid to upper 60s across the csts and vlys.

LONG TERM (SAT-TUE). 08/310 AM.

The February like weather all comes to an end Friday night. A huge CONUS spanning trof will develop over the weekend and persist into early next week. CA will be under the dry NW flow on the west end of this trof. It will usher in a period of benign weather. Skies will be partly cloudy at worst through the period. Hgts will change little through period and no offshore flow is forecast so max temps will really not change much through the period (maybe a little warmer on days 6 and 7) and will remain several degrees blo normal.

AVIATION. 08/1230Z.

At 1130z at KLAX . there was no inversion.

Overall . Low to moderate confidence in the current TAFs. Precipitation and associated low CIGs will continue to move through the region during the forecast period, changing direction as the center of the low moves south and east. CIGs and at times the vsby will vary frequently through the forecast period, especially during periods of showers. MVFR/VFR conditions will be most prevalent with a chance of LIFR/IFR conditions near heavier showers.

KLAX/KBUR . Low to moderate confidence in the current TAF. Rain and associated low CIGs will move SE to NW around the terminals this morning. As the low pressure center shifts south and east, the rain bands will first become E to W and then N to S. CIGs and at times the vsby will vary frequently through the forecast period, especially during periods of showers. MVFR/VFR conditions will be most prevalent with a chance of LIFR/IFR conditions near heavier showers. At KLAX, there is a ten percent chance of east winds greater than 8 kts through 18z and a thirty percent chance 09/12z-17z.

MARINE. 08/910 AM.

Conditions will remain below advisory level through Friday with winds increasing across the outer waters Saturday and Sunday.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Winter Weather Advisory in effect until 5 AM PDT Friday for zone 52. (See LAXWSWLOX). Winter Storm Warning in effect until 5 AM PDT Friday for zones 53-54. (See LAXWSWLOX). PZ . NONE.

.HAZARD POTENTIAL OUTLOOK (FRI-TUE).

Lingering snow showers are possible in the LA County mountains Friday.



PUBLIC . MW/Rorke AVIATION . Kj MARINE . Sweet/KJ SYNOPSIS . 30

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 23 mi31 min W 3.9 G 9.7 55°F 60°F3 ft1016.6 hPa48°F
46221 - Santa Monica Bay, CA (028) 30 mi25 min 59°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 32 mi51 min W 4.1 G 5.1 54°F 60°F1016.8 hPa
46251 34 mi21 min 59°F3 ft
NTBC1 - Santa Barbara, CA - 9411340 38 mi45 min SE 4.1 G 5.1 53°F 1016.3 hPa
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 41 mi31 min ESE 3.9 G 5.8 54°F 56°F3 ft1016.7 hPa49°F

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Point Mugu, Naval Air Warfare Center, CA2 mi29 minENE 310.00 miMostly Cloudy56°F46°F70%1016.7 hPa
Camarillo, Camarillo Airport, CA8 mi26 minN 010.00 miFair57°F45°F64%1017.2 hPa
Oxnard, Oxnard Airport, CA9 mi30 minESE 310.00 miMostly Cloudy54°F46°F75%1016.4 hPa

Link to 5 minute data for KNTD

Wind History from NTD (wind in knots)
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1 day agoW6W5SW7S9SW7SW9SW8SW9SW7W3W3CalmE3CalmCalmNE3N3N5N5N5N4N6N5Calm
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Tide / Current Tables for Mugu Lagoon (ocean pier), California
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Mugu Lagoon (ocean pier)
Click for Map
Wed -- 04:20 AM PDT     -0.63 feet Low Tide
Wed -- 06:33 AM PDT     Sunrise
Wed -- 07:14 AM PDT     Moonset
Wed -- 10:22 AM PDT     5.07 feet High Tide
Wed -- 04:25 PM PDT     0.04 feet Low Tide
Wed -- 07:23 PM PDT     Sunset
Wed -- 08:25 PM PDT     Moonrise
Wed -- 10:29 PM PDT     5.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.12.71.20-0.6-0.50.41.73.24.454.94.23.11.80.70.10.20.92.23.755.75.7

Tide / Current Tables for Port Hueneme, California
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Port Hueneme
Click for Map
Wed -- 04:22 AM PDT     -0.65 feet Low Tide
Wed -- 06:33 AM PDT     Sunrise
Wed -- 07:14 AM PDT     Moonset
Wed -- 10:29 AM PDT     5.18 feet High Tide
Wed -- 04:27 PM PDT     0.04 feet Low Tide
Wed -- 07:23 PM PDT     Sunset
Wed -- 08:25 PM PDT     Moonrise
Wed -- 10:36 PM PDT     5.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.32.81.30.1-0.6-0.50.31.73.14.45.15.14.43.21.90.80.10.20.92.23.755.85.9

Weather Map
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wmap_P
GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Los Angeles/Oxnard, CA (13,3,4,5)
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Ground Weather Radar Station Los Angeles, CA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.