Tuesday, April7, 2020
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Marine Weather and Tides
Hasley Canyon, 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 6:30AMSunset 7:21PM Tuesday April 7, 2020 7:22 PM PDT (02:22 UTC) Moonrise 7:12PMMoonset 6:36AM Illumination 100% Phase: Full Moon; Moon at 15 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- 218 Pm Pdt Tue Apr 7 2020
Tonight..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds. Chance of showers.
Wed..N winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 7 seconds. Chance of showers.
Wed night..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. Chance of 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. Slight chance of showers in the evening.
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 12 seconds.
Fri night..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 2 ft at 12 seconds.
Sat..NW winds 15 to 20 kt. Combined seas 2 to 3 ft.
Sun..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 2 ft.
PZZ600 218 Pm Pdt Tue Apr 7 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z, or 1 pm pdt, a 1017 mb low was about 200 nm sw of point conception. This storm system will affect the coastal waters through Thursday.


7 Day Forecast for Marine Location Near Hasley Canyon, CA
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location: 34.63, -118.73     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 080052 AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 552 PM PDT Tue Apr 7 2020

SYNOPSIS. 07/158 PM.

Scattered rain and mountain snow showers will continue through at least early Friday. There is a slight chance of thunderstorms Wednesday in LA/Ventura Counties, including across the adjacent coastal waters. The weekend will be dry with a slow warming trend.

SHORT TERM (TDY-FRI). 07/147 PM.

The next little wave of showers is indeed moving into LA County this afternoon with the expectation that it will rotate counterclockwise tonight and increase shower activity to areas to the northwest. Models are zoning in on SLO and nrn SB Counties, particularly the interior portions, as getting the lion's share of the precip tonight along with the eastern San Gabriels. Meanwhile other areas will get less and some areas very little, especially srn SB and Ventura Counties which will be in a relative donut hole in the precip coverage. This is still a tricky, and relatively low confidence forecast given the showery nature of the precip and the usual unknowns with cutoff lows.

After this moves through later tonight tomorrow's shower activity is looking pretty isolated and mostly focused over the mountains. Models show the upper low moving slowly inland near San Diego Wednesday afternoon/evening and there is a little instability with it, though again mostly over the higher terrain, and will leave in the thunderstorm chances across LA/Ventura counties tomorrow just in case an isolated storm pops up.

While models differ with the track of the low after it moves inland there is good overall consensus on increasing shower activity again late Wednesday night into Thursday as moisture wraps around the back side of the low. In fact, in all areas except possibly SLO County more rain is expected to fall Thursday into Thursday night than tonight and tomorrow. Pops have been increased during this time as well as QPF, though given that there isn't much orographic lift going on and minimal, if any, convection rain rates should be light to moderate at best and shouldn't pose significant issues.

Snow levels today have been at or above 5000' and unless the low tracks farther north it's likely they won't get much lower than that through the duration of this event. It's possible the very top of the Grapevine on Interstate 5 could see a mix of rain and snow at some point but it's unlikely to accumulate at pass level. However, due to the now increased duration of the precip the current slate of winter hazards has been extended another 24 hours through early Friday morning.

LONG TERM (SAT-TUE). 07/152 PM.

A majority of ensemble solutions now showing scattered light showers continuing in eastern LA County through Friday afternoon before finally exiting the area by Friday night. After that it looks dry and warmer with highs getting back to near normal levels by early next week. Beyond that models look pretty dry the rest of next week with no wind issues or big temperature swings either way.

AVIATION. 08/0049Z.

At 00Z at KLAX, There was a 10000 ft deep moist layer with no inversion.

Low Confidence in TAFs Cigs and Vis will vary frequently through the entire period. There will be periods of rain. MVFR conds will be most prevalent with some low VFR conds. Isolated IFR conds in heavier showers. There is a 10 percent chc of a TSTM as any site through the period.

KLAX . Low Confidence in TAFs Cigs and Vis will vary frequently through the entire period. There will be periods of rain. MVFR conds will be most prevalent with some low VFR conds. Isolated IFR conds in heavier showers. There is a 10 percent chc of a TSTM through the period. High confidence in an east wind component remaining below 5 kt.

KBUR . Low Confidence in TAFs Cigs and Vis will vary frequently through the entire period. There will be periods of rain. MVFR conds will be most prevalent with some low VFR conds. Isolated IFR conds in heavier showers. There is a 10 percent chc of a TSTM through the period.

MARINE. 07/135 PM.

High confidence that winds and seas will remain below SCA level through the forecast period.

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 AVIATION . Rorke MARINE . Sweet SYNOPSIS . MW

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 45 mi52 min NW 20 G 25 52°F 61°F1013.1 hPa
NTBC1 - Santa Barbara, CA - 9411340 53 mi46 min WNW 4.1 G 6 51°F 1015.5 hPa

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sandberg, CA9 mi29 minNE 130.50 miLight Rain Fog39°F37°F93%1011.9 hPa

Link to 5 minute data for KSDB

Wind History from SDB (wind in knots)
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Last 24hrS11S9S11S9S4SW3W4SE6CalmS3SE4SE3E55E7E8E9E11
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Tide / Current Tables for Ventura, California
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Ventura
Click for Map
Tue -- 03:38 AM PDT     -0.21 feet Low Tide
Tue -- 06:35 AM PDT     Sunrise
Tue -- 06:38 AM PDT     Moonset
Tue -- 09:39 AM PDT     5.51 feet High Tide
Tue -- 03:55 PM PDT     -0.41 feet Low Tide
Tue -- 07:14 PM PDT     Moonrise
Tue -- 07:23 PM PDT     Sunset
Tue -- 07:35 PM PDT     Full Moon
Tue -- 10:00 PM PDT     5.73 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.420.7-0.1-0.20.51.73.24.55.35.54.93.72.20.9-0.1-0.401.22.74.25.35.75.4

Tide / Current Tables for Rincon Island, California
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Rincon Island
Click for Map
Tue -- 03:36 AM PDT     -0.05 feet Low Tide
Tue -- 06:36 AM PDT     Sunrise
Tue -- 06:38 AM PDT     Moonset
Tue -- 09:43 AM PDT     5.53 feet High Tide
Tue -- 03:55 PM PDT     -0.34 feet Low Tide
Tue -- 07:14 PM PDT     Moonrise
Tue -- 07:23 PM PDT     Sunset
Tue -- 07:35 PM PDT     Full Moon
Tue -- 10:08 PM PDT     5.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.52.10.80.100.61.83.24.55.35.54.93.82.31-0-0.30.11.22.64.15.25.75.4

Weather Map
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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 (22,6,7,8)
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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.