Thursday, January23, 2020
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Marine Weather and Tides
Ladera Heights, 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 6:54AMSunset 5:16PM Thursday January 23, 2020 3:08 AM PST (11:08 UTC) Moonrise 7:09AMMoonset 5:17PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 231 Am Pst Thu Jan 23 2020
Today..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 12 seconds. Patchy dense fog with visibility 1 nm or less.
Tonight..W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 12 seconds.
Fri night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 ft at 16 seconds, building to 4 to 5 ft at 13 seconds after midnight.
Sat..Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 16 seconds.
Sat night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 4 ft at 15 seconds.
Sun..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft.
Mon..NW winds 20 to 25 kt. Combined seas 6 to 8 ft.
PZZ600 231 Am Pst Thu Jan 23 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 10z or 2 am pst, a 1025 mb surface high was centered around 450 nm sw of point conception, while an inverted trough was over the southern california bight. Dense fog with visibility one nautical mile or less will affect portions of the coastal waters this morning. Northwest flow will increase across the outer waters tonight through Friday with seas building.


7 Day Forecast for Marine Location Near Ladera Heights, CA
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location: 34.02, -118.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 230441 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 841 PM PST Wed Jan 22 2020

SYNOPSIS. 22/315 PM.

High pressure will bring dry and warmer weather Thursday through Saturday. A weak cold front will bring increasing clouds and a chance of light rain to the region Sunday, followed by dry weather early next week.

SHORT TERM (WED-SAT). 22/840 PM.

An upper level ridge of high pressure will build over the region on Thursday, then a weak upper level trough moves in on Friday. Northerly offshore pressure gradients are peaking tonight as evident by the LAX-BFL and SBA-BFL gradient around -4 mb. By Thursday morning, the low level gradient will shift to the northeast with LAX-Daggett peaking around -4 mb. Already seeing some gusty northerly winds this evening (with gusts mostly in the 25 to 35 mph range) across southern SBA county and the I-5 corridor in the LA county mountains. Similar wind speeds are expected on Thursday morning from the northeast.

Meanwhile satellite imagery showing some low clouds and fog this evening across the Central Coast, interior slopes and SLO county interior valleys, and a narrow patch of low clouds near Point Mugu. While the overall flow is trending offshore, there is the potential for patchy low clouds and dense fog to develop across portions of the coast tonight into Thursday morning. There will be a warming and drying trend across much of the region on Thursday, with warmest coastal/valley areas climbing into the mid 70s.

*** From previous discussion ***

Otherwise pretty quiet weather next few days. The northeast flow will help push lingering moisture from the Central Valley into interior SLO/SB Counties (as we're seeing currently in the visible satellite imagery) with some areas of fog possible overnight. Temps will warm up several degrees Thursday with 70s in many coast/valley areas, especially south of Pt Conception. Slightly weaker offshore flow Fri/Sat and possibly a couple degrees of cooling mainly coastal areas.

LONG TERM (SUN-WED). 22/139 PM.

The ridge shifts east Sunday as a slightly deeper trough approaches but this one looks much weaker than it did a few days ago and rain chances are dropping, especially south of Pt Conception. The ECMWF and it's ensembles are slightly more favorable for some very light rain Sunday, mainly for Central coast and southeast LA County but the rest of the area will be under northwesterly flow which is not precip-friendly. Amounts should be very light, generally under a tenth of an inch.

After that the eastern Pacific ridge returns and shifts the storm track well to the north again and models are favoring this pattern well into the first week in February. Can't completely rule out a stray trough coming through but any precip would likely be very light. Probably the most impactful weather will be some gusty northerly winds at times, particularly the first half of next week.

AVIATION. 22/2357Z.

At 2345Z, the marine inversion at KLAX was based at 2200 feet. The top of the inversion was 3400 feet with a temperature of 11 degrees Celsius.

Overall, moderate confidence in 00Z TAF package. Mostly VFR conditions expected through Thursday. The exceptions will be IFR/LIFR cigs at KSMX through this evening, likely to scour out overnight due to developing offshore flow. KPRB will likely have MVFR/IFR cigs between 10Z-20Z. And there is a 20 percent chance of IFR/LIFR cigs/vsbys across immediate coastal areas on Thursday morning including KLGB, KOXR, and KSBA. KLAX . Moderate confidence in 00Z TAF. VFR conditions are expected through the TAF period, however there is a 10 percent chance of IFR/LIFR cigs/vsbys on Thursday morning. No significant easterly wind component is anticipated.

KBUR . High confidence in 00Z TAF. VFR conditions are expected through the TAF period.

MARINE. 22/735 PM.

For the Outer Waters, high confidence in current forecast. Small Craft Advisory (SCA) level seas will continue until around midnight, before diminishing. On Thursday, winds and seas will remain below SCA levels. From Friday through Monday, high confidence in both SCA level northwest winds and SCA level seas developing. There is a 30% chance of Gale force winds on Monday.

For the Inner Waters north of Point Sal, high confidence in current forecast. For tonight through Friday, winds and seas will remain below SCA levels. For Saturday through Monday, SCA level northwest winds and seas are expected.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. Tonight through Saturday, winds and seas are expected to remain below SCA levels. For Sunday and Monday, there is a 60-70% chance of SCA level west to northwest winds developing.

BEACHES. 22/1124 AM.

High surf conditions will linger along the Central Coast and Ventura county coast through this evening, before diminishing. So, will keep HIGH SURF ADVISORIES in effect through 600 PM this evening. With the high surf conditions, numerous and dangerous rip currents will continue.

High surf could redevelop Saturday and Saturday night at all beaches with a 40-50 percent chance that a HIGH SURF ADVISORY will be needed. Even larger surf is possible late Sunday through Tuesday.

LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect until 9 PM PST this evening for zones 645-650. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PST Thursday for zones 670-673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (SAT-WED).

There is the possibility of gusty north winds on Monday and Tuesday, especially through the Santa Ynez Range and the Interstate 5 Corridor.



PUBLIC . Gomberg/MW AVIATION . Gomberg MARINE . Gomberg/RAT BEACHES . RAT SYNOPSIS . Sweet/DB

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 7 mi56 min ENE 5.1 G 5.1 55°F 59°F1020.6 hPa
46221 - Santa Monica Bay, CA (028) 18 mi42 min 60°F5 ft
PXAC1 18 mi56 min NW 4.1 G 5.1
BAXC1 19 mi50 min NNE 5.1 G 6
PSXC1 19 mi50 min N 5.1 G 5.1
PFXC1 20 mi50 min N 5.1 G 6
OHBC1 - 9410660 - Los Angeles, CA 21 mi56 min 61°F1020.8 hPa
PFDC1 21 mi50 min WNW 7 G 7
AGXC1 22 mi50 min NNW 7 G 8
PRJC1 22 mi50 min N 5.1 G 8
46256 24 mi38 min 59°F3 ft
46222 - San Pedro, CA (092) 28 mi45 min 61°F4 ft
46253 32 mi38 min 60°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 41 mi38 min E 3.9 G 5.8 58°F 60°F1020.4 hPa

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KCQT

Wind History from CQT (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmE3Calm3CalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmN3
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalm3W4--W55CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalm3CalmCalmCalmCalmCalmE5SE3CalmW3CalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Thu -- 01:35 AM PST     2.10 feet Low Tide
Thu -- 06:09 AM PST     Moonrise
Thu -- 06:56 AM PST     Sunrise
Thu -- 07:49 AM PST     6.21 feet High Tide
Thu -- 03:04 PM PST     -1.14 feet Low Tide
Thu -- 04:17 PM PST     Moonset
Thu -- 05:15 PM PST     Sunset
Thu -- 09:36 PM PST     3.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.62.22.12.53.34.35.366.25.84.73.31.70.2-0.8-1.1-0.9-01.12.33.23.83.83.5

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Thu -- 01:40 AM PST     2.11 feet Low Tide
Thu -- 06:09 AM PST     Moonrise
Thu -- 06:56 AM PST     Sunrise
Thu -- 07:50 AM PST     6.24 feet High Tide
Thu -- 03:07 PM PST     -1.11 feet Low Tide
Thu -- 04:17 PM PST     Moonset
Thu -- 05:15 PM PST     Sunset
Thu -- 09:39 PM PST     3.85 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.62.22.12.53.34.35.366.25.84.83.41.80.4-0.7-1.1-0.9-0.11.12.23.23.73.83.5

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 (6,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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.