Thursday, August6, 2020
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Marine Weather and Tides
Cambria, 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 6:14AMSunset 8:03PM Thursday August 6, 2020 5:33 PM PDT (00:33 UTC) Moonrise 9:12PMMoonset 8:04AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 218 Pm Pdt Thu Aug 6 2020
.small craft advisory in effect through late tonight...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft dominant period 8 seconds.
Fri..NW winds 15 to 20 kt with local gusts to 25 kt, becoming 10 to 15 kt with gusts to 20 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 6 to 7 ft at 8 seconds.
Fri night..NW winds 10 to 15 kt with gusts to 20 kt in the evening, becoming variable 10 kt or less. Wind waves 1 to 3 ft. NW swell 5 to 7 ft at 8 seconds.
Sat..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 6 to 7 ft at 10 seconds.
Sat night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 5 to 6 ft at 10 seconds.
Sun..Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 5 to 6 ft at 10 seconds.
Sun night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 5 to 6 ft at 10 seconds.
Mon..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft.
Tue..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft.
PZZ600 218 Pm Pdt Thu Aug 6 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 1026 mb high pressure was centered 800 nm west of san francisco. A 997 mb thermal low was located over nevada. The high will strengthen and move northward through the weekend. Gusty nw winds and choppy short- period seas will continue over the outer waters through at least Friday night.


7 Day Forecast for Marine Location Near Cambria, CA
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location: 35.58, -121.12     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 070013 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 513 PM PDT Thu Aug 6 2020

SYNOPSIS. 06/1209 PM.

Night through morning low clouds and fog will continue across the coasts and valleys through the week, then will begin to recede toward the coast over the weekend. Cool temperatures will continue then a gradual warming trend is expected to begin over the weekend.

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

Stagnant weather pattern the next several days with minimal changes overall for another ten days or so. Upper level troughiness remains along the west coast with weak to moderate onshore pressure gradients. From Friday through about Monday 500mb heights increase only about 30m from 586 to 589dm. A deep marine layer up to 3300 feet this afternoon will change very little into Friday morning. Low clouds have been slow to move away from all coastal areas today and expect a return of clouds and patchy fog well inland through foothills and mountain canyons by sunrise. This will help keep temperatures below normal for most areas with coolest conditions near the coast and nearby valleys.

Only impactful weather over the next 24-hours, which is minimal, are locally gusty southwest winds through gaps in terrain entering the Antelope Valley from the mountains and locally gusty northwest winds to 40 mph in the western canyons along the south SBA County coast this evening near Gaviota.

Expect a slight warming trend later in the weekend and early next week. We should gradually see less depth in the marine layer and not as much inland low clouds during this time frame. High temperatures will remain just below normal through the weekend, maybe reaching normal by Monday.

LONG TERM (MON-THU). 06/1254 PM.

Some model differences on either reinforcing the cool trough pattern next week over CA or retrograding it westward. If the later happens this would help heights build toward 591dm which would mean less night/morning low clouds and more heating during the day. For now it seems best to remain in a persistence forecast with a continued trough pattern, but the ECM ensembles are leaning toward the higher heights so we may need to increase temperatures some next week. There will be a tropical cyclone moving from the coast of Central America to well south of Baja around Tuesday or Wednesday. See very little potential impacts here except for a possible increase in surf conditions at times by midweek.

AVIATION. 07/0011Z.

At 2358Z at KLAX, the marine layer was 2500 ft deep. The top of the inversion was around 4300 ft with a temp of 18 C.

A rather deep marine layer allowed for slow clearing this afternoon, and no clearing across portions of the Central Coast. Moderate confidence that low clouds will return to all coastal/valley TAF sites overnight into Friday morning, with early onsets at KSMX and KSBP. There is some uncertainty in timing of cig arrival for TAFs south of Pt Conception, +/- 3 hours from current TAF timing. Cigs mostly in MVFR category overnight into Sunday morning, but there is a 20 percent chance of IFR cigs at KSBP and KPRB, and 60 percent chance at KSMX.

KLAX . High confidence of cigs returning at KLAX overnight into Friday morning, however timing of arrival is low and could be +/- 3 hours from TAF timing. Good confidence in clearing around 19Z.

KBUR . High confidence of cigs returning at KBUR later tonight into Friday morning, however timing of arrival is low and could be +/- 3 hours from TAF timing. Good confidence in clearing around 18Z.

MARINE. 06/154 PM.

Once again, the 12z NAM12 vastly increased the winds for this afternoon and tonight in the outer waters, but suspect that the winds may be overdone, so will keep the SCA for now and just increase the wind speeds somewhat. Also, the inner waters adjacent to the central coast will need a SCA for late this afternoon through tonight.

Moderate confidence in forecast. Small Craft Advisory (SCA) level winds will continue across the outer waters along the Central Coast to San Nicolas Island through Friday night, strongest during the afternoon and evening hours. SCA level winds will also reach the nearshore waters along the Central Coast this afternoon through tonight.

On Saturday and through the weekend, winds and seas will be below SCA level across all the waters.

LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect until 3 AM PDT Friday for zones 645-670-673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (SUN-THU).

No significant hazards expected.



PUBLIC . EB AVIATION . Gomberg MARINE . Sweet SYNOPSIS . EB

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 29 mi38 min 59°F3 ft
PSLC1 - 9412110 - Port San Luis, CA 34 mi46 min W 19 G 21 62°F 53°F1013.7 hPa
CPXC1 35 mi28 min W 17 G 19 63°F 1013.7 hPa56°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 43 mi24 min WNW 9.7 G 14 58°F1014 hPa
46028 - CAPE SAN MARTIN - 55NM West Northwest of Morro Bay, CA 44 mi24 min NW 16 G 19 58°F 1013.4 hPa58°F

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Paso Robles Municipal Airport, CA27 mi41 minSSW 1410.00 miFair78°F54°F43%1010.8 hPa

Link to 5 minute data for KPRB

Wind History from PRB (wind in knots)
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W12W12NW16NW18NW13NW9NW10W8W3CalmNW5NW7NW7N4Calm3NW664S14SW13SW13
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Tide / Current Tables for San Simeon, California
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San Simeon
Click for Map
Thu -- 06:17 AM PDT     Sunrise
Thu -- 06:52 AM PDT     -0.01 feet Low Tide
Thu -- 09:05 AM PDT     Moonset
Thu -- 01:18 PM PDT     4.26 feet High Tide
Thu -- 06:34 PM PDT     2.10 feet Low Tide
Thu -- 08:03 PM PDT     Sunset
Thu -- 10:12 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.65.34.53.320.90.2-00.31.12.13.13.94.24.23.73.12.52.22.12.53.244.7

Tide / Current Tables for Morro Beach, Estero Bay, California (2)
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Morro Beach
Click for Map
Thu -- 06:16 AM PDT     Sunrise
Thu -- 06:50 AM PDT     -0.01 feet Low Tide
Thu -- 09:03 AM PDT     Moonset
Thu -- 01:18 PM PDT     4.13 feet High Tide
Thu -- 06:32 PM PDT     2.03 feet Low Tide
Thu -- 08:01 PM PDT     Sunset
Thu -- 10:10 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.45.14.33.220.90.2-00.31.12.133.84.143.632.42.12.12.43.13.94.5

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 (20,4,5,8)
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Ground Weather Radar Station Vandenberg AFB, 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.