Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
Casmalia, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:47AMSunset 8:19PM Tuesday June 19, 2018 7:25 AM PDT (14:25 UTC) Moonrise 11:24AMMoonset 12:00AM Illumination 36% Phase: Waxing Crescent; Moon at 6 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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PZZ673 Waters From Pt. Sal To Santa Cruz Island Ca And Westward 60 Nm Including San Miguel And Santa Rosa Islands- 203 Am Pdt Tue Jun 19 2018
.small craft advisory in effect through late tonight...
Today..NW winds 10 to 20 kt with gusts to 25 kt. Combined seas 5 to 6 ft dominant period 11 seconds. Patchy fog in the morning.
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Wed..Northwestern portion, nw winds 20 to 30 kt. Elsewhere, nw winds 15 to 20 kt. Combined seas 6 to 7 ft dominant period 8 seconds. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 7 to 9 ft dominant period 7 seconds. Patchy fog after midnight.
Thu..Northwestern portion, nw winds 20 to 30 kt. Elsewhere, nw winds 10 to 15 kt becoming 15 to 25 kt in the afternoon. Combined seas 6 to 8 ft dominant period 8 seconds. Patchy fog in the morning.
Thu night..Northwestern portion, nw winds 20 to 30 kt. Elsewhere, nw winds 20 to 25 kt becoming 15 to 20 kt after midnight. Combined seas 7 to 9 ft dominant period 9 seconds.
Fri..NW winds 15 to 25 kt. Combined seas 7 to 9 ft.
Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft.
PZZ600 203 Am Pdt Tue Jun 19 2018
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 1024 mb high pressure center was located about 600 nm west of seattle and a 1005 mb thermal low was located near las vegas.

7 Day Forecast for Marine Location Near Casmalia, CA
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location: 34.7, -121.3     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 191126
afdlox
area forecast discussion
national weather service los angeles oxnard ca
426 am pdt Tue jun 19 2018

Synopsis 19 304 am.

High pressure will build over the area through Friday, resulting
in well above normal temperatures Wednesday through Friday with
low clouds and fog confined to the coastal plain. The high
pressure will weaken next weekend, bringing a cooling trend to the
area.

Short term (tdy-thu) 19 259 am.

The marine layer reformed at 1500 feet earlier and has lower to
1200 ft overnight. The capping inversion is not that strong which
will allow for an early clearing of the morning stratus. Low
clouds are across most of the coast (and have even snuck into the
sba south coast due to the weaker than forecast sundowner) low
clouds are also into many of the vlys although this will be the
last night of that for a while. Hgt bump up to 592 dm by this
afternoon and there will be a nice warm up away from the coast.

The coastal temps will warm some but there is still moderate
onshore flow so the warm up will be much less than it will be
inland. Inland MAX temps will warm 8 to 12 degrees and will end up
2 to 4 degrees above normal.

There will be another sundowner tonight perhaps a little stronger
than tonight's but still below advisory criteria. The marine
layer will shrink to under 1000 ft as the hgts build and squash
it. The capping inversion will also lower and will strengthen. Low
clouds will spread over the coast (save for the sba south coast)
but will not push into much if any of the vlys. The san gabriel
and santa ynez vlys may see some patchy clouds.

The upper high sits atop of socal on Wednesday and hgts climb to
594dm. MAX temps away from the coast will jump another 3 to 6
degrees (4 to 8 in the antelope vly) and will end up 4 to 8
degrees above normal. The coastal areas will warm a degree or two
but the onshore grads will not allow for too much warming.

More coastal low clouds Wed night but nothing will be in the vlys.

The marine inversion will be so strong that there will likely be
an area of very warm overnight lows at whatever elevations it sets
up at.

504dm hgts again on Thursday and the day will be very similar to
Wednesday.

Long term (fri-mon) 19 309 am.

The ec and the GFS agree that while 594 dm hgts will persist over
the area the upper pattern will shift. The upper high that was
over imperial county will retrograde to a position to the SW of pt
conception. A NW flow pattern will set up over the state. But
gradients and hgts do not change much really do not think there
will be much change from Wednesday and Thursday. There is a chc
that the marine layer will be so shallow and the capping inversion
so strong that the low clouds will not clear the beaches.

A little trof ripples through the NW flow Saturday and hgts fall
to 591 dm. Coast stratus will be the same as will coastal temps
but inland temps will fall a few degrees but will still be above
normal.

No big changes for Sunday... Maybe a 1 to 2 degrees of cooling.

By Monday the upper high will reform over az nm. But really do not
think this will affect the weather much and the day will be quite
a bit like Sunday with MAX temps still above normal.

Aviation 19 1125z.

At 0845z, the marine inversion at klax was based at 1500 feet. The
top of the inversion was 3800 feet with a temperature of 19
degrees celsius.

Overall, low confidence in coastal coastal valley tafs as
development duration of ifr MVFR CIGS is very haphazard this
morning, especially south of point conception. Whatever cigs
develop should dissipate by late morning withVFR conditions
through this afternoon. For this evening and overnight, low to
moderate confidence in stratus forecast.

High confidence in kprb as well as desert tafs.

Klax... Low confidence in 12z taf. There is a 50% chance MVFR cigs
could dissipate as early as 15z. For tonight, moderate confidence
in development of ifr cigs, but low confidence in timing.

Kbur... Low confidence in 12z taf. There is a 50% chance ifr cigs
may not develop 12z-16z.

Marine 19 304 am.

For the outer waters, high confidence in current forecast. There
is an 80% chance of small craft advisory (sca) level northwest
winds today through Saturday with the strongest winds during the
afternoon and evening hours.

For the inner waters, high confidence in current forecast. For the
waters north of point sal, there is a 70% chance of SCA level
northwest winds each afternoon evening today through Friday. For
the waters south of point conception, winds and seas are expected
to remain below SCA levels through Saturday although there is a
20% chance of SCA level winds each afternoon evening across the
western half of the santa barbara channel.

Lox watches warnings advisories
Ca... None.

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 until 3 am pdt Wednesday for
zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
No significant hazards expected.

Public... Rorke
aviation... Rat
marine... Rat
synopsis... Rat
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 19 mi34 min 57°F7 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi36 min NW 14 G 16 53°F 55°F4 ft1016.5 hPa (+0.5)
46218 - Harvest, CA (071) 32 mi26 min 56°F6 ft
PTGC1 - Point Arguello, CA 36 mi26 min N 23 G 25 52°F 1015.9 hPa (+0.3)
46215 - Diablo Canyon, CA (076) 42 mi29 min 53°F4 ft
PSLC1 - 9412110 - Port San Luis, CA 43 mi38 min NE 2.9 G 4.1 54°F 56°F1017.2 hPa
CPXC1 44 mi22 min Calm G 1 54°F 1017.4 hPa51°F

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA39 mi88 minN 30.50 miFog52°F51°F98%1016.5 hPa

Wind History from VBG (wind in knots)
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1 day agoNW3CalmW5NW6NW6NW6NW7NW7NW8W9NW8----------------------CalmCalm
2 days agoN3CalmCalmW4W8W8W9W9W10W11W9W8SW6SW4SW5W4W3W3W3CalmW3W4W5NW4

Tide / Current Tables for Point Arguello, California
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Point Arguello
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Tue -- 12:42 AM PDT     Moonset
Tue -- 02:40 AM PDT     4.53 feet High Tide
Tue -- 05:49 AM PDT     Sunrise
Tue -- 09:41 AM PDT     -0.34 feet Low Tide
Tue -- 12:21 PM PDT     Moonrise
Tue -- 04:50 PM PDT     4.51 feet High Tide
Tue -- 08:18 PM PDT     Sunset
Tue -- 10:33 PM PDT     2.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.544.44.54.23.42.41.30.4-0.2-0.30.10.91.92.93.84.44.54.23.732.42.12.1

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Tue -- 12:42 AM PDT     Moonset
Tue -- 02:29 AM PDT     4.76 feet High Tide
Tue -- 05:50 AM PDT     Sunrise
Tue -- 09:42 AM PDT     -0.24 feet Low Tide
Tue -- 12:21 PM PDT     Moonrise
Tue -- 04:44 PM PDT     4.53 feet High Tide
Tue -- 08:18 PM PDT     Sunset
Tue -- 10:29 PM PDT     2.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.84.34.74.74.33.42.41.30.4-0.1-0.20.10.91.933.94.44.54.23.73.12.52.22.3

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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Wind Forecast for Los Angeles/Oxnard, CA (10,2,3,4)
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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.