Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
McKittrick, CA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:25AMSunset 7:44PM Wednesday August 21, 2019 8:34 AM PDT (15:34 UTC) Moonrise 10:15PMMoonset 10:53AM Illumination 65% Phase: Waning Gibbous; Moon at 21 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- 316 Am Pdt Wed Aug 21 2019
.small craft advisory in effect from this afternoon through this evening...
Today..NW winds 10 to 15 kt, becoming 15 to 25 kt with local gusts to 30 kt in the afternoon. Combined seas 4 to 6 ft dominant period 8 seconds. Patchy dense fog with visibility 1 nm or less in the morning.
Tonight..NW winds 15 to 25 kt with local gusts to 30 kt in the evening, becoming 10 to 15. Combined seas 7 to 8 ft dominant period 7 seconds in the evening, subsiding to 5 to 7 ft dominant period 8 seconds. Patchy fog in the evening, then patchy dense fog with visibility 1 nm or less.
Thu..NW winds 5 to 10 kt, becoming 10 to 20 kt with local gusts to 25 kt in the afternoon. Wind waves 1 ft or less, becoming 2 to 4 ft in the afternoon. NW swell 5 to 6 ft at 9 seconds. Patchy dense fog with visibility 1 nm or less in the morning.
Thu night..NW winds 10 to 20 kt with local gusts to 25 kt in the evening, becoming variable 10 kt or less. Wind waves 2 to 4 ft in the evening, becoming 1 ft or less. NW swell 5 to 6 ft at 9 seconds.
Fri..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 9 seconds.
Fri night..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds.
Sat..Winds variable 10 kt or less early, becoming nw 10 to 15 kt. Wind waves 2 ft or less. Mixed swell nw 2 to 4 ft and S 2 ft.
Sun..NW winds 10 to 15 kt. Wind waves 2 ft. Mixed swell nw 3 ft and S 2 ft.
PZZ600 316 Am Pdt Wed Aug 21 2019
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 1022 mb surface high was located about 700 nm west of point conception. A 1002 mb thermal low was centered near las vegas. Gusty northwest winds will increase to gale force across the outer waters later today and continue through late tonight.


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 211300
afdlox
area forecast discussion
national weather service los angeles oxnard ca
600 am pdt Wed aug 21 2019

Synopsis 21 254 am.

Afternoon temperatures will peak this afternoon with a cooling
trend expected through the end of the week. High temperatures
will remain above normal through Thursday. High pressure will
build back in this weekend into next week. There will be areas of
night through morning low clouds and fog for most coastal areas
and possibly affecting a few coastal valleys into this weekend.

Short term (tdy-fri) 21 246 am.

Latest goes-w fog product imagery indicted mostly clear skies
except for low clouds and patchy fog across much of the santa
barbara central coast and into the santa ynez valley. A northerly
surface gradient between sba-smx continued to be over -3 mb as of
2 am. This was causing gusty northerly winds across the western
portion of the santa barbara south coast and adjacent foothills,
strongest west of refugio. Sustained winds remain over 30 mph with
gusts around 40 mph with highest gusts reaching the lower 50s last
evening. A wind advisory remains in effect until 3 am for this
area. Another wind advisory will likely be issued this morning valid
for this afternoon and overnight hours once again tonight for the
same location.

Synoptically, a 594 dm high was located over the eastern pacific
extending eastward over much of southern california. An upper
level trough located across the west coast from northern
california into the pac NW will dig farther south into socal
Thursday Friday bringing a cooling trend across most areas. Today
will be the warmest over the next few days with highs 2-6 degrees
warmer than yesterday. Triple digit heat is expected across the
antelope valley, salinas river valley and should hit 100 degrees
at woodland hills. Otherwise, most valleys will reach the mid to
upper 90s as the coastal areas remain mild over the next few days.

Night through morning low clouds are expected to be more
widespread across the central coast with only patchy low clouds
developing across the la county coast and possibly reaching the
oxnard plain. This stratus will continue Thu night into Friday.

Possibly more widespread S of point conception. Higher confidence
for clear skies across the sba south coast due to the sundowner
winds this evening into Thu morning.

For Thursday, expect high temps to lower 2-4 degrees, with an
additional 2-6 degrees of cooling on Friday. The one exception
will be across the salinas river valley including paso robles where
highs will go from the upper 90s on Thursday to the lower to mid
80s on Friday as cooler southerly flow moves into the area.

The pattern becomes a bit more complex after Friday as the national
hurricane center is expecting a high chance of a tropical depression
forming just west of southern mexico over the pacific. The gfs
shows this disturbance moving north parallel to the baja peninsula
but loses a lot of its punch by Sunday.

Long term (sat-tue) 21 309 am.

Overall, a few degrees of warming is expected this weekend into
early next week as high pressure builds in over the region. Moderate
onshore flow is expected to remain in place so will likely deal
with a relatively shallow but widespread marine layer across most
coastal areas during the night and morning hours. High
temperatures will rise a few degrees with most valleys in the mid
to upper 90s. The antelope valley will experience triple digit
heat, but not much higher than normal for this time of year.

The GFS continues to show a tropical cyclone spinning up over the
pacific just west of southern mexico on Friday and tracking north
parallel to baja. It quickly weakens as it reaches southern baja
Saturday. It's possible there will be some mid to high level
remnant clouds moving over across southern california by Sunday,
but remaining too dry at lower levels to pose much of a risk for
convection.

Aviation 21 1259z.

At 12z, the marine layer was 900 feet deep at klax. The top of
the inversion was around 3300 feet with a temp of 25c.

Areas of low clouds were affecting the central coast and the
santa ynez valley early this morning. Conds were mostly lifr to
vlifr. Skies should clear by mid morning, except late morning
near the coast. Clouds should return to these areas this evening
and persist through the night, with generally lifr to vlifr conds.

Elsewhere, skies were mostly clear. Areas of low clouds and fog
are expected across coastal sections of l.A. County and possibly
vtu county late tonight, with mostly ifr conds expected.

Klax... Moderate confidence in the 12z taf. There is a 30% chance
that skies will remain clear tonight, and conds will remainVFR.

Kbur... High confidence in the 12z TAF withVFR conds thru the pd.

Marine 21 359 am.

For the outer waters, moderate to high confidence in the forecast.

Small craft advisory (sca) level winds are expected to increase
to gale force this afternoon and continue thru late tonight. Then,
sca level winds are likely late tonight thru Thu evening. Conds
are expected to be below SCA levels late Thu night thru sun.

For the inner waters north of pt. Sal, moderate confidence in the
forecast. SCA level winds are expected this afternoon thru this
evening, and there is a 30-40% chance that SCA level winds will
continue thru late tonight. There is a 40% chance of SCA level
winds during the afternoon and evening hours thu. Then, SCA conds
are not expected Thu night thru sun.

For the inner waters south of pt. Conception, moderate to high
confidence in the forecast. SCA level W to NW winds are expected
across western portions of the sba channel late this afternoon
thru late tonight. Otherwise, SCA conds are not expected thru sun.

Lox watches warnings advisories
Ca... Wind advisory in effect from 3 pm this afternoon to 3 am pdt
Thursday for zones 39-52. (see laxnpwlox).

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 Thursday for zone 650. (see laxmwwlox).

Small craft advisory in effect until 3 pm pdt this afternoon
for zones 670-673-676. (see laxmwwlox).

Gale warning in effect from 3 pm this afternoon to 3 am pdt
Thursday for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (fri-tue)
Elevated surf and strong rip currents are possible at area beaches
early next week.

Public... Kaplan
aviation... Db
marine... Db
synopsis... Kaplan
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPXC1 41 mi30 min Calm G 1.9 56°F 998.7 hPa55°F
PSLC1 - 9412110 - Port San Luis, CA 41 mi46 min Calm G 1.9 56°F 61°F1013.8 hPa
46215 - Diablo Canyon, CA (076) 46 mi34 min 61°F4 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 60 mi44 min 60°F 58°F6 ft1012.8 hPa (+0.5)

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 mi98 minW 710.00 miFair61°F55°F81%1012.7 hPa

Link to 5 minute data for KSBP

Wind History from SBP (wind in knots)
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Last 24hrCalmNW33NW4W7--NW19NW13NW14NW13NW11NW10----------CalmCalmCalm----W7W8
1 day agoCalmCalm44--W8NW10NW15NW14NW14NW13------NW9NW8NW4W4--NW7NW5NW3NW3NW5
2 days agoS4SW6SW33S56--SW7NW9NW12NW13--------NW9----W5CalmSW3--S3--

Tide / Current Tables for Avila, California
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Avila
Click for Map
Wed -- 01:43 AM PDT     0.70 feet High Tide
Wed -- 06:27 AM PDT     Sunrise
Wed -- 07:49 AM PDT     -1.18 feet Low Tide
Wed -- 11:56 AM PDT     Moonset
Wed -- 02:35 PM PDT     1.54 feet High Tide
Wed -- 07:44 PM PDT     Sunset
Wed -- 09:36 PM PDT     -1.05 feet Low Tide
Wed -- 11:18 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.60.70.50.2-0.3-0.8-1.1-1.2-1-0.6-00.61.21.51.51.30.80.2-0.3-0.8-1-1-0.8

Tide / Current Tables for Port San Luis Wharf, California
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Port San Luis Wharf
Click for Map
Wed -- 01:38 AM PDT     3.88 feet High Tide
Wed -- 06:27 AM PDT     Sunrise
Wed -- 07:50 AM PDT     1.68 feet Low Tide
Wed -- 11:56 AM PDT     Moonset
Wed -- 02:30 PM PDT     4.47 feet High Tide
Wed -- 07:44 PM PDT     Sunset
Wed -- 09:12 PM PDT     2.06 feet Low Tide
Wed -- 11:18 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.83.93.63.22.62.11.81.71.92.333.64.14.44.44.23.73.12.62.22.12.12.4

Weather Map and Satellite Images
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wmap_P
GOES 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 (11,2,3,4)
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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 numerious 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.