Monday, July6, 2020
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Marine Weather and Tides
Channel Islands Beach, 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 5:50AMSunset 8:13PM Monday July 6, 2020 3:41 PM PDT (22:41 UTC) Moonrise 9:50PMMoonset 7:12AM Illumination 98% Phase: Waning Gibbous; 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- 157 Pm Pdt Mon Jul 6 2020
.small craft advisory in effect from 3 pm pdt this afternoon through late tonight...
Tonight..Western portion, nw winds 15 to 25 kt with gusts to 30 kt. Eastern portion, W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Combined seas 6 to 8 ft dominant period 11 seconds.
Tue..Western portion, nw winds 5 to 15 kt, becoming 15 to 20 kt in the afternoon. Eastern portion, winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 1 to 3 ft. W swell 4 to 6 ft at 10 seconds.
Tue night..Western portion, nw winds 15 to 20 kt with gusts to 25 kt. Eastern portion, W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Combined seas 5 to 7 ft dominant period 10 seconds, subsiding to 3 to 5 ft dominant period 10 seconds after midnight. Patchy fog after midnight.
Wed..Winds variable 10 kt or less, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 10 seconds. Patchy fog in the morning.
Wed night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 5 ft at 8 seconds.
Thu..NE winds 5 to 10 kt, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 4 ft at 9 seconds. Patchy fog in the morning.
Thu night..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 1 to 3 ft. W swell 2 to 4 ft at 8 seconds.
Fri..W winds 10 to 20 kt with gusts to 25 kt. Strongest western portion. Combined seas 3 to 5 ft.
Sat..W winds 10 to 20 kt with gusts to 25 kt. Strongest western portion. Combined seas 3 to 5 ft.
PZZ600 157 Pm Pdt Mon Jul 6 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 18z, or 11 am pdt, a 1026 mb high pressure center was located over the eastern pacific and a 1088 mb low was south of las vegas. There will be an extended period of strong nw winds across much of the coastal waters through at least Wed, along with large steep seas.


7 Day Forecast for Marine Location Near Channel Islands Beach CDP, CA
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location: 34.15, -119.26     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 062014 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 114 PM PDT Mon Jul 6 2020

SYNOPSIS. 06/855 AM.

Hot and dry conditions will persist across inland locations through Tuesday, before cooling a few degrees through mid week. Gusty Sundowner winds are likely tonight into early Tuesday morning. Strong high pressure will build across the region with temperatures rebounding into triple digits for the Antelope Valley and possibly some valley locations late this week into the weekend. Night through morning low clouds will remain limited to some coastal areas through the week.

SHORT TERM (TDY-THU). 06/1251 PM.

Not as hot today as yesterday with current readings well into the 90s for interior valleys, 70s and 80s coastal valleys, and some 60s along the central coast. Still above normal, but not bad with some areas of the central coast as much as 10-15 degrees cooler than 24-hours ago. Still have some organized low clouds south of Pt Dume and even a small eddy circulation detectable on GOES-17 visible imagery northwest of Catalina Island. Expect a repeat of low clouds and locally dense fog across coastal waters south of Oxnard tonight and a little more coverage for the LA coastal zone. Also expect to see fog redevelop in the Santa Ynez Valley up to Santa Maria late tonight. Many areas are seeing dry air and locally gusty winds this afternoon mainly near the highway 14 corridor into the Antelope Valley. RH between 8-15 percent is common along with gusts to 35 mph near Lake Palmdale. Winds will remain below advisory level and subside later tonight in these areas, but a few hours of critical fire weather conditions are possible until then. Sundowner winds are expected to reach wind advisory criteria west of Goleta this evening/night with isolated gusts to 50 mph near Gaviota. Locally gusty to 30 mph will be possible along the ridges toward San Marcos Pass later this evening. A few hours of humidities into the upper teens and lower 20s could result in elevated fire weather conditions for the SBA south coast (refer to fire discussion below).

Tuesday will be just a few degrees cooler than today as the temperatures trend lower through Wednesday. After morning coastal stratus and fog, expect another sunny day with the hottest conditions remaining over the interior valleys. The onshore LAX- DAG pressure gradient peaks over 8 mb on Wednesday afternoon, and the heights will lower slightly allowing a deeper marine layer and therefore more widespread low clouds for coastal areas by Wednesday morning. Similar conditions will persist into Thursday before the four-corners high pressure system begins to expand westward across southwest CA. Temperature trends will begin to reverse direction and move upward then.

LONG TERM (FRI-MON). 06/111 PM.

High pressure continues to build over southwest CA late in the week and looks likely to persist well into next week. By Friday, heights build to 594dm with the heat expanding back into the interior valleys and mountains. High temperatures are likely to push into triple digits in the Antelope Valley by Friday. Even warmer temperatures look reasonable for the weekend with lower to mid 90s downtown, near 100 for valleys, 105 for the AV, and even 90 degrees near Camarillo. The ongoing maximum temperature forecasts were pushed just slightly above model guidance numbers and this remains on-track as heights exceed 597dm over southern CA during this timeframe. Latest heat risk calculations indicate moderate to high categories across parts of the Ventura Co. valleys and a larger portion of LA County over the weekend. At least heat advisories may be needed or considered. Another interesting development is the first indication of monsoon flow moving through Mexico with a few thunderstorms possible near the border by Saturday afternoon. All deterministic and ensemble model data show a decrease in temperature trends, although still hot early next week. A notable southwest flow aloft during this time would also shunt any monsoon moisture well to our south and east. This is the time of year to see afternoon cumulus and possible monsoon storms over the mountains and deserts, so pay attention to the latest forecasts for this type of development.

AVIATION. 06/1611Z.

At 1600Z, the marine inversion at KLAX was based at 1000 feet. The top of the inversion was 3000 feet with a temperature of 24 degrees Celsius.

Overall for the 18Z TAF package, moderate confidence in coastal sites and high confidence in valley/desert sites. Overnight, moderate confidence in return of IFR/LIFR conditions to KSMX as well as LA Basin sites (KLAX/KLGB/KSMO), but low confidence in timing. For other coastal sites, there is a slight chance of CIG/VSBY restrictions tonight.

KLAX . Overall, moderate confidence in 18Z TAF. High confidence in VFR conditions through this evening. Overnight, moderate confidence in return of IFR restrictions, but low confidence in timing (could be +/- 3 hours of current 12Z forecast). No significant easterly wind component is expected.

KBUR . High confidence in 18Z TAF as CAVU conditions are expected through TAF period.

MARINE. 06/1235 PM.

For the Outer Waters, moderate to high confidence in current forecast. For PZZ670/673, high confidence in Gale force winds through tonight. For Tuesday through Saturday, high confidence winds remaining at Small Craft Advisory (SCA) levels. There is a 40% chance that the Gale winds may continue through Tuesday night. For PZZ676, high confidence in SCA level winds continuing through Saturday.

For the Inner Waters north of Point Sal, high confidence in current forecast. SCA level winds will continue through Wednesday night with the strongest winds during the afternoon and evening hours. After a lull on Thursday, there is a 60% chance of SCA level winds once again Friday and Saturday during the afternoon and evening hours.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. For a majority of the area, high confidence in winds and seas remaining below SCA levels through Saturday. The only exception will be the western half of the Santa Barbara Channel where there is a 70% chance of SCA level winds late this afternoon through tonight then a 50% chance of SCA level winds late Tuesday afternoon through Tuesday night. After a lull on Wednesday/Thursday, there is a 50% chance of SCA level winds again on Friday/Saturday during the late afternoon through overnight hours.

Patchy dense fog, with visibility 1 nautical mile or less, will affect the waters south of Pt Conception in the night/morning hours through Tuesday.

There will be dangerous steep seas across much of the waters through Wednesday night. There will be a subsiding long period south swell today.

FIRE WEATHER. 06/1034 AM.

Hot and dry conditions are expected to continue across interior areas today, where humidities in the single digits and teens will be common. The driest air will be focused across the Antelope Valley, mountains, and interior valleys of SLO County where humidities as low as 6 to 10 percent can be expected. In addition, locally gusty southwest to northwest winds (gusting between 25 and 40 mph) can be expected across interior sections, strongest in the Antelope Valley. Warm and dry conditions are also expected to linger through the nighttime hours in the foothills and mountains. The combination of hot temperatures, low humidities, locally gusty winds, and drying fuels will bring elevated fire weather conditions to interior areas today, including the Soledad Fire burn area. The rapid fire spread seen yesterday afternoon and evening across the Soledad Fire (near Agua Dulce) are indicative of the large fire growth potential across interior areas, especially during the afternoon hours when onshore winds are strongest.

Elevated fire weather conditions are also expected through this evening across the western portions of the Santa Barbara south coast and adjacent foothills, mainly late afternoon and evening hours. These areas can expect gusty sundowner winds, mainly from Gaviota to San Marcos Pass, with gusts of 35 to 45 mph this evening. The projected Santa Barbara-Santa Maria gradient this evening is expected to peak above -4 mb. The sundowner wind conditions will also bring warm and dry conditions, with humidities lowering into the teens and 20s across foothill areas, while temperatures climb to 85 to 90 degrees.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory in effect from 5 PM this afternoon to 3 AM PDT Tuesday for zones 39-52. (See LAXNPWLOX). PZ . Small Craft Advisory in effect until 9 PM PDT Wednesday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Tuesday for zone 650. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Tuesday for zones 670-673. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Thursday for zone 676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (THU-MON).

Hot temperatures will return to sections of the coastal and interior valleys of southwest California Saturday through Monday. Moderate to high heat risk will be possible.



PUBLIC . EB AVIATION . RAT MARINE . RAT FIRE . Gomberg SYNOPSIS . EB

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NTBC1 - Santa Barbara, CA - 9411340 29 mi66 min SW 11 G 12 69°F 1012 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 30 mi42 min WNW 7.8 G 9.7 68°F 1011.9 hPa (-0.8)65°F
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 31 mi42 min W 14 G 16 63°F 1012.4 hPa (-0.9)60°F
46251 31 mi46 min 68°F5 ft
46221 - Santa Monica Bay, CA (028) 39 mi79 min 69°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 41 mi54 min W 9.9 G 11 66°F 71°F1012.4 hPa

Wind History for Santa Barbara, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oxnard, Oxnard Airport, CA5 mi51 minW 16 G 2310.00 miFair75°F55°F50%1011.9 hPa
Point Mugu, Naval Air Warfare Center, CA8 mi50 minW 119.00 miFair74°F57°F56%1012.5 hPa
Camarillo, Camarillo Airport, CA10 mi47 minW 910.00 miFair82°F55°F40%1012.5 hPa

Link to 5 minute data for KOXR

Wind History from OXR (wind in knots)
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Last 24hrW8W8W8W7W5W4W3CalmSW3CalmCalmCalmE3NE3CalmCalmCalmW6W7W9W11W12W14W16
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1 day agoW9W9W7W7W5NW3NW3W5NW4W3W3CalmCalmCalmCalmCalmCalmCalmSW45W7W7W9W9
2 days agoW11W14W13W12W11W7NW6NW4N3NW3CalmCalmCalmCalmCalmE3E3CalmW8W7W7SW7SW5W8

Tide / Current Tables for Port Hueneme, California
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Port Hueneme
Click for Map
Mon -- 05:29 AM PDT     -1.11 feet Low Tide
Mon -- 05:51 AM PDT     Sunrise
Mon -- 07:11 AM PDT     Moonset
Mon -- 12:04 PM PDT     3.91 feet High Tide
Mon -- 04:39 PM PDT     2.37 feet Low Tide
Mon -- 08:11 PM PDT     Sunset
Mon -- 09:49 PM PDT     Moonrise
Mon -- 10:46 PM PDT     6.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.442.40.8-0.4-1-1-0.40.61.82.93.63.93.73.32.82.42.42.83.54.45.466.2

Tide / Current Tables for Ventura, California
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Ventura
Click for Map
Mon -- 05:32 AM PDT     -1.11 feet Low Tide
Mon -- 05:51 AM PDT     Sunrise
Mon -- 07:11 AM PDT     Moonset
Mon -- 12:03 PM PDT     3.91 feet High Tide
Mon -- 04:42 PM PDT     2.37 feet Low Tide
Mon -- 08:12 PM PDT     Sunset
Mon -- 09:50 PM PDT     Moonrise
Mon -- 10:45 PM PDT     6.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.442.40.9-0.4-1-1-0.40.61.82.93.63.93.73.32.82.52.42.73.54.45.466.2

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (18,4,5,8)
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Ground Weather Radar Station Los Angeles, CA
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Disclaimer:
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.