Tuesday, June25, 2019 L-36.com


Marine Weather and Tides
Atascadero, CA

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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 5:47AMSunset 8:23PM Tuesday June 25, 2019 7:16 PM PDT (02:16 UTC) Moonrise 12:19AMMoonset 12:25PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 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- 216 Pm Pdt Tue Jun 25 2019
Tonight..W winds 10 to 15 kt in the evening, becoming 5 to 10 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 4 ft at 8 seconds and S 3 ft at 15 seconds.
Wed..Winds variable 10 kt or less, becoming nw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. Mixed swell nw 4 ft at 8 seconds and S 3 ft at 14 seconds.
Wed night..NW winds 20 to 25 kt in the evening, becoming 10 to 15 kt. Combined seas 5 to 7 ft dominant period 9 seconds. Patchy fog after midnight.
Thu..NW winds 10 to 15 kt, becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 3 ft at 10 seconds, building to 5 ft at 10 seconds in the afternoon. Patchy fog in the morning.
Thu night..NW winds 20 to 30 kt in the evening, becoming 10 to 20 kt. Combined seas 7 to 8 ft dominant period 8 seconds, subsiding to 5 to 6 ft dominant period 8 seconds after midnight. Patchy fog.
Fri..N winds 5 to 10 kt, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 5 to 6 ft at 8 seconds. Patchy fog in the morning.
Fri night..NW winds 20 to 30 kt in the evening, becoming 10 to 20 kt. Combined seas 8 to 9 ft dominant period 8 seconds, subsiding to 6 to 8 ft dominant period 8 seconds after midnight.
Sat..NW winds 15 to 25 kt. Combined seas 5 to 7 ft.
Sun..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 6 ft.
PZZ600 216 Pm Pdt Tue Jun 25 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z, or 2 pm pdt, a 1022 mb surface high was located 1000 nm west of point conception,ca and a 1003 mb thermal low was centered near las vegas, nv.


7 Day Forecast for Marine Location Near Atascadero, CA
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location: 35.46, -120.69     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 260035
afdlox
area forecast discussion
national weather service los angeles oxnard ca
535 pm pdt Tue jun 25 2019

Synopsis 25 1204 pm.

Night and morning low clouds will cover the coasts and valleys
through the end of the week. Interior areas will be mostly sunny.

Breezy conditions will develop in the mountains and deserts today
through Thursday. Daily maximum temperatures will be cool through
Friday.

Short term (tdy-fri) 25 202 pm.

Overall, 12z models in good synoptic agreement through the
short-term period. At upper levels, low develops off the pacific
northwest tonight Wednesday then moves slowly inland on Thursday
and Friday. Near the surface, onshore flow peaks in strength today
then weakens Wednesday through Friday (with some weak
northwesterly flow developing).

Forecast-wise, the blandness of june continues. Main issues will
continue to be the extent of the marine layer stratus and
temperatures. Currently, amdar soundings indicate marine
inversion around 2800 feet with limited clearing across the coasts
and coastal valleys. With strong onshore gradients, stratus will
push once again into the coastal slopes by Wednesday morning with
the possibility of some patchy drizzle. For Thursday and Friday,
the inversion should become more shallow and stratus less extensive
with rising h5 heights and offshore gradient trends. Additionally,
the weakening onshore gradients will allow for much better
clearing each afternoon from Wednesday through Friday. Otherwise,
skies should be mostly clear through the period.

As for temperatures, coasts and coastal valleys will exhibit a
gradual warming trend through Friday with temperatures at or a
couple degrees above normal by Friday. For inland areas, there
will actually be some slight cooling Wednesday Thursday with some
slight warming on Friday.

As for winds, the gusty onshore (southwesterly) winds across the
mountains and deserts will gradually diminish through the period,
remaining below advisory levels. Will have to watch the
development of some northerly winds Wednesday night through
Friday, especially during the evening hours. There could be some
low-end advisory level sundowner Wednesday evening and Thursday
evening across the western half of the santa ynez range.

Long term (sat-tue) 25 202 pm.

For the extended, models start to diverge in their respective
solutions. The GFS gradually builds an upper level ridge (from
the southwest) over the area while the ECMWF maintains a trough
(and cyclonic flow) over the area. The GFS would be a warmer and
less cloudy scenario then the ecmwf.

Given the time of year and looking at ensembles, will continue to
veer the extended forecast towards the warmer GFS solution. So,
generally weak onshore gradients will continue through the period
with some northerly gradients during the evening and overnight
hours. So, there will continue to be some locally gusty northerly
winds during the evening and overnight hours in the usual spots
(santa ynez range and i-5 corridor). The marine inversion will be
shallower through the period with less extensive stratus coverage
during the night and morning hours. Other than the limited
stratus, skies should remain mostly clear. Temperatures will
continue to exhibit a warming trend with Monday likely the warmest
days for most areas.

Aviation 26 0034z.

At 2332z at klax, the marine layer was 3000 feet deep. The top of
the inversion was around 4000 feet with a temperature near 18
degrees celsius.

N of point conception... Expect a persistent stratus pattern once
again this evening. CIGS are expected to be redevelop to ifr
category + - 1 hours from 00z taf. There is a 30% chance that ifr
cigs will not jump up to MVFR after 15-16z Wed and scour out
within an hour of tafs. Lower confidence for ifr CIGS to develop
at kprb. There is a 40% chance forVFR conds 11z-16z.

S of point conception... Expect a persistent stratus pattern.

Moderate confidence for ifr CIGS becoming MVFR anytime late this
eve or after midnight. There is a 30% chance CIGS will remain ifr
overnight through 16z before rising to MVFR. There is a 30%
chance for CIGS to scour out along l.A. Coast after 21z wed.

Otherwise, expect valley TAF sites to scour out + - 1 hour from
)00z taf.

Klax... Moderate confidence in the 00z forecast. There is a 30
percent chance ofVFR conditions after 21z tomorrow afternoon.

Kbur... Moderate confidence in the 00z forecast. There is a 30
percent chance of MVFR CIGS through 23z tomorrow.

Marine 25 1218 pm.

For the outer waters, an SCA remains in effect for pzz670 for
this afternoon through Thursday night. Good confidence that the
entire outer waters will need a SCA by Wednesday evening. Small
craft advisory winds should continue Thursday through Saturday,
with a 40 percent chance of gales between Thursday afternoon and
Friday night.

For the inner waters north of point sal, winds and seas will
likely remain below SCA levels through early Wednesday, then there
is a 50 percent chance of SCA level winds each afternoon and
evening between Wednesday and Saturday.

For the inner waters south of point conception, winds and seas
will likely remain below SCA levels through early Wednesday, then
a 40 percent chance of SCA level winds across the western half of
the santa barbara channel Wednesday late afternoon and evening,
then a 50% chance each afternoon and evening between Thursday and
Saturday for the same western portion of the santa barbara channel.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 am pdt Friday for zone
670. (see laxmwwlox).

Hazard potential outlook (fri-tue)
No significant hazards expected.

Public... Thompson
aviation... Kaplan
marine... Sweet
synopsis... Phillips arnold
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPXC1 20 mi19 min WNW 6 G 8.9 60°F 1013.2 hPa55°F
46215 - Diablo Canyon, CA (076) 20 mi47 min 59°F3 ft
PSLC1 - 9412110 - Port San Luis, CA 20 mi47 min W 5.1 G 8.9 60°F 60°F1013.4 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 39 mi27 min ESE 3.9 G 7.8 59°F 59°F5 ft1012.7 hPa (+0.0)

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, CA15 mi21 minSW 710.00 miPartly Cloudy63°F54°F73%1012.2 hPa
Paso Robles Municipal Airport, CA16 mi24 minS 20 G 2510.00 miFair and Breezy66°F53°F63%1009.7 hPa

Wind History from SBP (wind in knots)
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Last 24hrSW3CalmW3SW3CalmW4CalmSW3SE3CalmE4CalmCalmCalmSW4SW534SW36SW8S9SW8SW7
1 day agoNW8NW6W5NW4W3W4NW3N4N4W4SW3CalmSE4S4S5Calm3CalmSW65CalmS7S5W4
2 days agoNW6NW4CalmNW5W3NW4E3SE3E4SE4CalmS3S3SE3CalmW456SW85W5W7NW9W4

Tide / Current Tables for Morro Beach, Estero Bay, California (2)
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Morro Beach
Click for Map
Tue -- 01:19 AM PDT     Moonrise
Tue -- 02:48 AM PDT     Last Quarter
Tue -- 04:24 AM PDT     3.27 feet High Tide
Tue -- 05:49 AM PDT     Sunrise
Tue -- 11:06 AM PDT     1.11 feet Low Tide
Tue -- 01:25 PM PDT     Moonset
Tue -- 06:17 PM PDT     4.18 feet High Tide
Tue -- 08:22 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.52.62.93.13.33.232.62.11.61.31.11.21.62.22.83.53.94.24.13.83.32.82.4

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
Click for Map
Tue -- 01:19 AM PDT     Moonrise
Tue -- 02:48 AM PDT     Last Quarter
Tue -- 04:24 AM PDT     3.27 feet High Tide
Tue -- 05:49 AM PDT     Sunrise
Tue -- 11:06 AM PDT     1.12 feet Low Tide
Tue -- 01:25 PM PDT     Moonset
Tue -- 06:17 PM PDT     4.18 feet High Tide
Tue -- 08:22 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.52.62.93.13.33.232.62.11.71.31.11.21.62.22.83.53.94.24.13.83.32.82.4

Weather Map and Satellite Images
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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 (22,6,7,8)
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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 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.