Sunday, May31, 2020
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Marine Weather and Tides
McKittrick, 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 5:47AMSunset 8:11PM Sunday May 31, 2020 9:06 AM PDT (16:06 UTC) Moonrise 1:36PMMoonset 1:37AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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- 237 Am Pdt Sun May 31 2020
.small craft advisory in effect from this afternoon through this evening...
Today..Winds variable 10 kt or less, becoming nw 10 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 5 to 6 ft dominant period 11 seconds.
Tonight..NW winds 10 to 20 kt with gusts to 25 kt in the evening, becoming 10 to 15 kt. Combined seas 5 to 6 ft dominant period 7 seconds.
Mon..Winds variable 10 kt or less, becoming nw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. W swell 4 to 5 ft at 9 seconds.
Mon night..NW winds 10 to 15 kt in the evening, becoming 5 to 10 kt. Wind waves 2 ft or less. W swell 5 to 6 ft at 9 seconds. Patchy fog after midnight.
Tue..Winds variable 10 kt or less, becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. W swell 5 to 6 ft at 9 seconds. Patchy fog in the morning.
Tue night..NW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 5 to 6 ft at 9 seconds.
Wed..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 5 ft.
Thu..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 5 to 6 ft.
PZZ600 237 Am Pdt Sun May 31 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z, or 2 am pdt, a 1021 mb surface high was about 600 nm northwest of san francisco, while a weak thermal trough was over the southern california bight.


7 Day Forecast for Marine Location Near McKittrick, CA
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location: 35.33, -120     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 311201 AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 501 AM PDT Sun May 31 2020

updated aviation discussion

SYNOPSIS. 31/348 AM.

It will be mostly cloudy through Tuesday with slightly above normal temperatures. Skies will be partly cloudy from mid week on except for a night through morning low cloud pattern across the coasts. High temps will cool some but will remain above normal.

SHORT TERM (TDY-TUE). 31/317 AM.

Three very similar days ahead for Southern CA. A trof will push down the east Pacific today and then cut off on Monday. Tuesday it will just sit and spin a couple hundred miles to the west of LA. SW flow aloft will set up today and then persist through Tuesday. What will make these three somewhat unusual days for late May and early June is that the SW flow will entrain a large amount of mid and high level clouds and will create mostly cloudy skies from this afternoon all the way through Tuesday. There will be night through morning low clouds across the coast and some of the vlys as well although the higher clouds will disrupt their formation some and as a result they will be a little more random than usual.

Hgts will slowly rise through the period and more importantly the onshore flow will weaken each day. The mid and high level clouds will not be that thick and will allow in some sunshine. All told there will be three consecutive days of warming culminating in Tuesday's max temps exceeding normal by 4 to 8 degrees across the area.

LONG TERM (WED-SAT). 31/347 AM.

Both the GFS and the EC agree the upper low will not move much on Wednesday. But the mid and high level clouds should move away and it should be a sunny day. The sunshine will add another 3 to 6 degrees of warming to the area and Wednesday will be warmest day of the next 7 with all of the vlys in the 90s and coastal areas mostly in the 80s away from the beaches.

On Thursday both models promise to move the upper low to the east towards Baja. There are still differences however. The GFS places the center of the low about 100 miles further east than the EC does. Whichever mdl is correct or if it a compromise between the two it probably will not make too much of a difference in the forecast for Srn CA. Look for partly cloudy skies everywhere and morning low clouds across the coasts. The hgts will lower through the day and this will kick off a cooling trend.

Both mdls now suggest that the upper low be pulled up to the north and east as it becomes entwined in the flow around a large PacNW low. This will move the upper low over the area Thursday night (GFS) or Friday morning (EC). This passage will generate a slight chc of mtn showers again earlier GFS and later EC. Friday will start out a little cloudy but will then clear in the afternoon the lower hgts will accelerate the cooling trend and max temps should drop 5 to 10 degrees. Max temps will end up only 1 to 3 degrees above normal across the coasts and 2 to 5 degrees blo normal over the vlys and interior.

Dry WSW flow on tap for next Saturday. Look for mostly sunny skies as the low's passage will likely disrupt the marine layer. max temps will warm a few degrees with rising hgts.

AVIATION. 31/1200Z.

At 1100Z at KLAX, There was no marine layer nor any inversion.

Low to moderate confidence in TAFs. Stratus is not well organized especially south of Point Conception so clouds may clear occasionally. For KPRB/KSMX/KSBP, good confidence in IFR/LIFR cigs with a 50% chance of VLIFR conditions. South of Point Conception, good confidence in IFR/low MVFR cigs for coastal/valley sites where cigs are forecast. For LA County coastal sites, there is a 40% chance of no cigs.

KLAX . Low to moderate confidence in TAF. There is a 40% chance of no cigs. Good confidence that any east wind component will be under 4 kt.

KBUR . Low to moderate confidence in TAF. There is a 50% chance of IFR cigs. Clearing of cigs may occur as early as 14Z.

MARINE. 31/235 AM.

Moderate to high confidence in the current forecast. Widespread Small Craft Advisory (SCA) level northwest winds will likely develop by this afternoon across the waters along the Central Coast to San Nicolas Island as well as the Santa Barbara Channel. Moderate confidence that the middle portion of these waters may reach SCA criteria as soon as mid-morning. Winds may drop below SCA level by late tonight, then there is a 60% chance that SCA level winds will develop again over these waters on Monday afternoon. There is a 40% chance of SCA level winds developing along the LA/Orange County coast today and Monday, but will likely remain localized between Anacapa and Catalina Islands.

A long period south swell will subside some today but build again for latter half of the week.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Beach Hazards Statement in effect until 2 PM PDT this afternoon for zones 40-41-87. (See LAXCFWLOX). PZ . Small Craft Advisory in effect from 3 PM this afternoon to 9 PM PDT this evening for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Monday for zones 650-670-676. (See LAXMWWLOX). Small Craft Advisory in effect from 9 AM this morning to 3 AM PDT Monday for zone 673. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (TUE-SAT).

No significant hazards expected.



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

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPXC1 41 mi35 min SSW 5.1 G 7 55°F 1016 hPa52°F
PSLC1 - 9412110 - Port San Luis, CA 41 mi49 min SSE 5.1 G 6 55°F 60°F1015.9 hPa
46215 - Diablo Canyon, CA (076) 46 mi37 min 58°F4 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 60 mi27 min NNW 7.8 G 9.7 59°F1015.8 hPa

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA34 mi71 minENE 310.00 miPartly Cloudy58°F53°F84%1014.6 hPa

Link to 5 minute data for KSBP

Wind History from SBP (wind in knots)
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SW8SW8S4S6S3CalmNW4CalmCalmSE4CalmSE3E5CalmCalmSE3E3NE4
1 day agoS3S7S6S4S7S8SW11SW8S5S3S3S4S7SE7SE3NE4SE3E4CalmE3E5S3SE8SE13
2 days agoW5--SW8SW9SW105SW6SW6NW7W6S4CalmSW3CalmSE3S6NE3S5CalmS5S3SE3S7S6

Tide / Current Tables for Avila, California
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Avila
Click for Map
Sun -- 12:12 AM PDT     -0.62 feet Low Tide
Sun -- 02:39 AM PDT     Moonset
Sun -- 05:27 AM PDT     1.11 feet High Tide
Sun -- 05:49 AM PDT     Sunrise
Sun -- 12:02 PM PDT     -2.17 feet Low Tide
Sun -- 02:39 PM PDT     Moonrise
Sun -- 06:53 PM PDT     2.17 feet High Tide
Sun -- 08:11 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.5-0.20.30.81.11.10.70.1-0.7-1.4-2-2.2-2-1.4-0.40.61.422.21.91.30.4-0.4

Tide / Current Tables for Port San Luis Wharf, California
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Port San Luis Wharf
Click for Map
Sun -- 12:33 AM PDT     1.89 feet Low Tide
Sun -- 02:39 AM PDT     Moonset
Sun -- 05:49 AM PDT     Sunrise
Sun -- 05:58 AM PDT     4.00 feet High Tide
Sun -- 12:29 PM PDT     0.30 feet Low Tide
Sun -- 02:39 PM PDT     Moonrise
Sun -- 07:11 PM PDT     5.03 feet High Tide
Sun -- 08:12 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.92.22.83.43.843.83.22.41.50.80.40.40.91.72.83.94.754.94.33.42.4

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 (12,3,4,5)
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Ground Weather Radar Station Vandenberg AFB, 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.