Sunday, February23, 2020
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Marine Weather and Tides
Guadalupe, 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 6:37AMSunset 5:53PM Sunday February 23, 2020 5:30 AM PST (13:30 UTC) Moonrise 7:05AMMoonset 6:09PM Illumination 0% Phase: New Moon; Moon at 29 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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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 259 Am Pst Sun Feb 23 2020
.small craft advisory in effect through this afternoon...
.gale warning in effect from this afternoon through late tonight...
Today..NW winds 15 to 25 kt with local gusts to 30 kt. Strongest western portion. Combined seas 8 to 10 ft dominant period 15 seconds.
Tonight..NW winds 25 to 35 kt, becoming 15 to 25 kt with gusts to 35 kt after midnight. Combined seas 9 to 11 ft dominant period 15 seconds.
Mon..NW winds 15 to 25 kt with gusts to 30 kt. Strongest western portion. Combined seas 8 to 11 ft dominant period 14 seconds.
Mon night..NW winds 15 to 25 kt with gusts to 30 kt. Strongest western portion. Combined seas 9 to 12 ft dominant period 14 seconds, subsiding to 7 to 10 ft dominant period 14 seconds after midnight.
Tue..NW winds 10 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft dominant period 13 seconds, building to 8 to 10 ft dominant period 12 seconds in the afternoon.
Tue night..NW winds 15 to 20 kt with local gusts to 25 kt, becoming N 10 to 15 kt after midnight. Wind waves 2 to 4 ft. NW swell 6 to 8 ft at 12 seconds.
Wed..N winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft.
Thu..N winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 7 to 8 ft.
PZZ600 259 Am Pst Sun Feb 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 1013 mb surface low was located over northern arizona, with a 1033 mb high centered 700 nm W of point conception. Increasing nw winds will continue today with gales likely across the outer waters this afternoon and tonight. Winds will gradually diminish between late tonight and Tuesday morning.


7 Day Forecast for Marine Location Near Guadalupe, CA
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location: 34.74, -121.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 231217 AAA AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 417 AM PST Sun Feb 23 2020

SYNOPSIS. 23/242 AM.

It will be dry with mostly clear skies and above normal maximum temperatures through mid week. It will be breezy at times during the morning hours.

SHORT TERM (TDY-TUE). 23/310 AM.

A deep moist layer has brought low clouds to almost the entirety of SLO and SBA counties (with the notable exception of the SBA south coast) While there was once quite robust cloud coverage over LA and VTA counties a north push has cleared most of those clouds out. Expect VTA county to be mostly sunny but low clouds will likely reform over areas of the LA county coasts and vlys. Offshore flow and the lack of an inversion will allow the stratus to dissipate by mid to late morning. Cannot rule out partly cloudy skies in some areas in the afternoon due to strata CU formation in the moist layer.

At the higher levels a weak ridge will push in from the East Pac and hgts will increase to 577 DM. Max temps will rise 2 to 4 degrees and up to 6 degrees in the LA county vlys.

A weak eddy will bring low clouds to the LA and VTA county coasts and portions of the LA county vlys. Northeast flow from the San Joaquin Vly will bring some low clouds into the Cuyama and SLO vlys. There will be some weak northerly winds through the mtns but nothing at advisory levels.

The low clouds will quickly dissipate Monday morning and it will be a sunny day. Ridging continues and hgts will climb to 579 DM. The weak offshore flow and increasing hgts will bring 4 to 8 degrees of warming to the area and most areas will see above normal temps.

A weak eddy will likely bring low clouds to the LA coast later Monday evening but these clouds will likely not survive to see dawn as increasing offshore flow will push them away.

A cold sfc high will build into Idaho on Tuesday it will bring moderate offshore flow both from the N and E to the area. A quick hitting Santa Ana wind event will set up. There will likely be a need for some advisories in the LA and VTA mtns and vlys and maybe the VTA coast. The offshore flow will continue to push the temps up across the csts/vly and there will be another 4 to 8 degrees of warming. This will bring the max temps for the csts/vlys into the mid and upper 70s with a smattering of lower 80s in the warmest locations.

LONG TERM (WED-SAT). 23/320 AM.

Not much change on Wednesday except the offshore flow will be a little weaker and there will likely be no need any wind advisories. There will be another couple of degrees of warming under sunny skies.

Thursday will be the warmest day as the ridge peaks in strength. Max temps across the csts and vlys will almost all be in the upper 70s to mid 80s or 10 to 15 degrees above normal.

The ridge breaks down some on Friday and some mid and high level clouds will scoot overhead. Max temps will drop a few degrees from Thursdays readings but will still be much above normal.

The ridge will be displaced by a weak trof on Saturday. The trof will bring a grip of mid and high level clouds along with it. More importantly it will flip the offshore flow to weak onshore. The combination of onshore trends, lower hgts and cloud cover will drop max temps 4 to 8 and maybe even 10 degrees from Friday's temps.

Long range mdls and ensemble forecast are indicating a chc of light rain sometime either Sunday or Sunday night.

AVIATION. 23/1217Z.

At 0930Z at KLAX, there was a moist layer up to around 4000 feet.

Low-to-moderate confidence in the current forecast. MVFR conditions are likely through at least 17Z for terminals north of Point Conception, or as late as 20Z. There is a chance of MVFR conditions at terminals south of Point Conception through 20Z. VFR conditions with ceilings at or below 5000 feet are possible between 17Z and 20Z. There is a chance of IFR to MVFR conditions at Los Angeles County coastal terminals and terminals north of Point Conception after 02Z.

KLAX . There is a 50 percent chance of MVFR conditions through 20Z. There is a slightly better chance of VFR conditions with ceilings at or below 5000 feet through 20Z. VFR conditions with any ceilings above 6000 feet are expected after 20Z. There is a 40 percent chance of MVFR conditions after 06Z. Any east winds will likely remain less than 7 knots.

KBUR . There is a 50 percent chance of MVFR conditions through 20Z. There is a slightly better chance of VFR conditions with ceilings at or below 5000 feet through 20Z. VFR conditions with any ceilings above 6000 feet are expected after 20Z.

MARINE. 23/317 AM.

For the Outer Waters, moderate-to-high confidence in the current forecast. Small Craft Advisory (SCA) level NW winds will likely continue through Monday night. There is a 50 percent chance of SCA level gusts at times around Point Conception Tuesday. There is also a 60-70 percent chance of gale force winds at times this afternoon and tonight. Winds should diminish and seas should subside below SCA levels Wednesday and Thursday.

For the inner waters north of Point Sal, moderate-to-high confidence in the current forecast. There is a 70 percent chance of SCA level winds at times this afternoon and evening. Otherwise, winds and seas are forecast to remain below SCA levels through Thursday.

For the Inner Waters south of Point Conception, moderate confidence in the current forecast. SCA level winds will likely linger through this evening across the Santa Barbara Channel. Otherwise, winds and seas are forecast to remain below SCA levels through Thursday. There is a 30 percent chance of SCA level NE wind gusts at times nearshore from Point Mugu to Santa Monica late Monday night and Tuesday morning.

LOX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory in effect until 9 AM PST Tuesday for zones 34-35. (See LAXCFWLOX). PZ . Small Craft Advisory in effect from 1 PM this afternoon to 9 PM PST this evening for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PST this evening for zone 650. (See LAXMWWLOX). Small Craft Advisory in effect until 3 PM PST this afternoon for zones 670-673-676. (See LAXMWWLOX). Gale Warning in effect from 3 PM this afternoon to 3 AM PST Monday for zones 670-673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (TUE-SAT).

There is a chance of gusty northeast winds Tuesday through Wednesday.



PUBLIC . Rorke/Stewart AVIATION . Hall MARINE . Hall SYNOPSIS . 30

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 7 mi31 min 57°F10 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi21 min NNW 18 G 23 55°F 56°F1024.8 hPa47°F
46218 - Harvest, CA (071) 36 mi31 min 58°F8 ft
PTGC1 - Point Arguello, CA 39 mi31 min NNW 22 G 23 54°F 1023.5 hPa (+1.0)
HRVC1 41 mi43 min 54°F 1024.4 hPa
46215 - Diablo Canyon, CA (076) 42 mi31 min 61°F6 ft
CPXC1 44 mi13 min WNW 2.9 G 4.1 53°F 1024.8 hPa46°F
PSLC1 - 9412110 - Port San Luis, CA 44 mi49 min N 5.1 G 7 53°F 57°F1024.7 hPa

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA42 mi93 minN 610.00 miOvercast51°F46°F83%1023.7 hPa

Link to 5 minute data for KVBG

Wind History from VBG (wind in knots)
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Last 24hrE3S5CalmCalmNE3N10NW9NW9N9N10N8NW7N7NW11NW8NW9N10NW9N10N11N7N9N6N7
1 day agoSE8SE8SE7SE7CalmCalmSE6SW7W7S5S6S9E7W5E5S7CalmSW3SE8SE11CalmCalmW3E3
2 days agoSE9SE11SE55CalmW5NW5W4W7N8N6NW5N5NE3CalmSE5SE6SE5SE7E4E4SE7NE3--

Tide / Current Tables for Point Arguello, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (8,2,3,4)
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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.