Saturday, June23, 2018

Marine Weather and Tides
Lompoc, 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 5:48AMSunset 8:19PM Saturday June 23, 2018 11:11 AM PDT (18:11 UTC) Moonrise 3:22PMMoonset 1:59AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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- 914 Am Pdt Sat Jun 23 2018
.small craft advisory in effect until 3 pm pdt this afternoon...
Today..Northwestern portion, nw winds 15 to 25 kt. Elsewhere, nw winds 5 to 10 kt. Wind waves 2 ft late in the morning, becoming 2 ft or less. NW swell 5 to 6 ft at 9 seconds. Patchy fog in the morning.
Tonight..NW winds 10 to 20 kt, becoming 15 to 20 kt with gusts to 25 kt after midnight. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds. Patchy fog.
Sun..S winds 10 to 20 kt with gusts to 25 kt, becoming 10 to 15 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds. Patchy fog in the morning.
Sun night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog.
Mon..Winds variable 10 kt or less, becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog in the morning.
Mon night..NW winds 5 to 10 kt, becoming 10 to 15 kt after midnight. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog.
Tue..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 5 to 7 ft. Patchy fog.
Wed..NW winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. NW swell 5 to 6 ft. Patchy fog.
PZZ600 914 Am Pdt Sat Jun 23 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z...or 8 am pdt...a 1027 mb high pressure center was located about 900 nm west of point conception and a 1004 mb thermal low was along the california - arizona border.

7 Day Forecast for Marine Location Near Lompoc, CA
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location: 34.38, -120.53     debug

Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 231742
area forecast discussion
national weather service los angeles oxnard ca
1042 am pdt Sat jun 23 2018

Synopsis 23 918 am.

Temperatures will cool off slightly, with extensive low clouds
and fog expected for the coast and valleys over the weekend. High
pressure will strengthen, bringing warmer temperatures and a
decrease in cloudiness for early next week.

Short term (tdy-mon) 23 916 am.

The marine inversion this morning ranged from 800 ft deep at vbg to
2400 ft deep at lax. Extensive low clouds covered the coast and vlys
this morning, especially S of point conception, as a decent se
flow in a fairly strong eddy covered the socal bight. The low
clouds are expected to clear to the coast N of point conception by
midday, and probably clear to just the coastal plain S of point
conception due to a persistent SE to S flow over the socal bight
expected thru this afternoon. In addition, 12z NAM forecast
gradients at 00z this afternoon include +10.1 mb lax-dag and +6.8
mb lax-bfl. These strong onshore gradients will also help to keep
low clouds near or over the coastal plain today. Otherwise, mostly
sunny skies will prevail across the region. Highs are going to
be quite warm over the region again today, with the hottest
interior vlys and lower mtns expected to reach the 90s to around
102. For the vlys adjacent to the coast, highs should be mostly in
the 80s to around 90.

An upper level high off the SRN ca coast will persist in this area
thru sun, with very weak upper level troffiness expected over the
region tonight into Sun morning. Upper ridging will build back into
srn ca Sun afternoon thru mon. H5 heights thru the period are
generally expected to be rather high and in the 589-591 dm.

The marine layer will deepen some tonight into Sun morning to around
1500 ft N to 2500 ft or slightly hier s. Extensive marine layer
clouds and some fog can be expected for the coast and vlys tonight
into Sun morning. In addition, the persistent SE to S flow at low
levels should help to contribute some upslope flow into the
foothills, with patchy drizzle not out of the question for the
coast, vlys and lower coastal slopes S of point conception. Will add
mention of patchy drizzle for these areas tonight into Sun morning
with the afternoon forecast package. The low clouds should clear to
the coast Sun afternoon, but may be persistent in a few areas such
as the oxnard plain. There should be slightly lower marine inversion
sun night, with low clouds and fog expected to return quickly to the
coast and vlys, then clear to or off the coast my midday mon.

Otherwise, mostly clear skies will prevail over the forecast area
thru mon.

No major issues are anticipated with regards to winds through Monday.

Moderate to strong onshore gradients will generate the usual gusty
afternoon evening southwesterly winds across the mountains and
deserts, but should be generally below advisory levels.

Temperatures are forecast to cool some sun, but remain several
degrees above normal for interior areas, then warm back up a few
degrees for most areas on mon. Highs in the warmest interior vlys
and lower mtns Sun should reach the mid 80s to lower 90s, except mid
90s to 101 in the antelope vly, then warm into the 90s Mon except
upper 90s to 103 in the antelope vly. For the vlys adjacent to the
coast, highs will be in the upper 70s to mid 80s Sun and mid 80s to
around 90 on mon.

Long term (tue-fri) 23 130 am.

For the extended, models continue to exhibit decent synoptic
agreement. At upper levels, ridge will peak in strength on Tuesday
and Wednesday then a decent trough will develop over the west
coast Thursday and Friday. Near the surface, moderate to strong
onshore flow will continue with a bit of increase in northwesterly
flow Thursday and Friday.

Forecast-wise, things will still remain rather quiet through the
period. Marine inversion will fluctuate in depth through the
period (bit more shallow Tuesday Wednesday then deepening
Thursday Friday), but should remain more than deep enough to push
into the coastal valleys each morning. Stratus dissipation each
afternoon should be good although some beach areas could be slow
to clear each afternoon. Other than the stratus, skies will remain
mostly clear. As for temperatures, Tuesday and Wednesday will be
the warmest days with a cooling trend Thursday and Friday. As for
winds, typical gusty onshore winds will continue across the
mountains and deserts. By Wednesday night, there may be some
increase in northerly winds across southern santa barbara county
and the interstate 5 corridor, but nothing that appears too strong
at this time.

Aviation 23 1104z.

At 09z, around klax, profiler data indicating the marine layer
depth was around 1800 feet deep. The top of the marine inversion
was around 3500 feet with a temperature near 26 degrees celsius.

N of point conception... Moderate confidence with vlifr lifr conds
at ksmx through 16z then ifr through 18z give or take an hour.

Lower confidence at ksbp if CIGS will develop. If they do cigs
will also be vlifr lifr 30% chance this will occur. High
confidence for kprb withVFR conds. Higher confidence for more
widespread lifr ifr CIGS this evening into Sunday morning.

S of point conception... Moderate confidence with ifr CIGS through
much of this morning. MVFR CIGS expected across coastal areas
after 16z this morning. Good chance that low clouds will linger
across coastal areas much of this afternoon. 40% chance for low
MVFR CIGS or even high ifr CIGS across kcma koxr all day. With
MVFR CIGS for l.A. County coastal TAF sites. Valleys should remain
ifr conds through mid morning. Low clouds will move in again
this evening through Sunday morning, with better chance of MVFR
cigs after ifr initially develops for coast and lower chance for
MVFR but ifr CIGS could move to MVFR at kbur and kvny after 14z
sun morning.

Klax... Moderate confidence with 12z taf. Ifr CIGS should become
MVFR by 16z and chances it will remain MVFR through at least 21z
but 30% chance that remains cloudy all day. Ifr to MVFR CIGS are
expected to move in early this evening if it does not clear out at
all. There is a 50% chance that SE winds will reach 10 kt after
03z this evening, with a 30% this morning through 18z.

Kbur... Moderate confidence overall in 12z taf. Ifr CIGS should
continue through mid morning. Could be an hour or two of MVFR
conds. 30% chance that CIGS will linger a few hours from 12z taf.

Moderate confidence that ifr CIGS will redevelop after 09z this
evening and linger an hour longer than this morning. 40% chance
that CIGS could rise to MVFR by 15z Sunday morning.

Marine 23 907 am.

For the outer waters... Small craft advisory (sca) level winds
will continue through this afternoon for the central outer waters.

The winds in this zone will increase again overnight and into
tomorrow and the advisory may be extended or will be allowed to
expire and then reissued for the later period. The strongest winds
are around and south of point conception including the western
portion of the santa barbara channel. Conditions in the northern
and southern outer waters will remain below SCA levels through
Wednesday though the winds and seas will be elevated at times.

For the inner waters north of point sal... Conditions will remain
below SCA levels through Wednesday.

For the inner waters south of point conception... Conditions will
remain below SCA levels through Wednesday. However... Southeast
winds will be elevated late tonight and on Sunday with gusts
reaching SCA level at times. The winds will be strongest across
the western portion of the santa barbara channel.

Fire weather 23 1042 am.

Strengthening onshore flow combined with a deepening marine
layer pattern will bring a gradual cooling trend for most areas, especially
coastal and valley areas. Temperatures will still remain very warm today across
interior sections, with some triple digit readings today across the antelope valley
and interior valleys of san luis obispo county, with some cooling on Sunday.

Humiditis in these areas as well as the mountains will fall into the 8 to 15
percent range today, then trending higher on Sunday. Strengthening onshore winds
will add to the fire weather threat across interior sections today and Sunday,
with gusts generally ranging between 25 and 40 mph across the mountains, deserts,
and interior valleys, with isolated gusts as high as 50 mph in the foothills of
the antelope valley. As of 10 am, the lax-daggett gradient is
around +6 mb, and is expected to peak around + 9 mb later this
afternoon. The combination of very warm and dry conditions
combined with these strong onshore winds will bring elevated fire
danger through the weekend across the mountains, deserts, and
interior valleys of san luis obispo county, with the potential for
brief critical fire weather conditions today. The greatest fire
weather threat today and tomorrow will be the highway 14 corridor
from santa clarita valley to the antelope valley.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 pm pdt this afternoon
for zone 673. (see laxmwwlox).

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

Public... Sirard thompson
aviation... Kaplan
marine... Kj
fire... Gomberg
synopsis... Delerme
weather.Gov losangeles

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46054 - SANTA BARBARA W 38 NM West of Santa Barbara, CA 8 mi31 min WSW 5.8 G 5.8 58°F1010.4 hPa
46218 - Harvest, CA (071) 14 mi41 min 62°F6 ft
PTGC1 - Point Arguello, CA 15 mi71 min SSW 12 G 13 54°F 1010.6 hPa (+0.6)
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 37 mi31 min ENE 7.8 G 12 62°F 63°F1011.1 hPa62°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 47 mi81 min S 3.9 G 5.8 54°F 53°F6 ft1010.1 hPa (+1.1)

Wind History for Santa Barbara, CA
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Lompoc Airport, CA20 mi15 minW 1010.00 miFair65°F57°F76%0 hPa

Wind History from LPC (wind in knots)
Last 24hrW13W13W12W14
1 day agoW9W12W15
2 days agoW11W14W13W13

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
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Sat -- 02:05 AM PDT     0.51 feet Low Tide
Sat -- 02:59 AM PDT     Moonset
Sat -- 05:51 AM PDT     Sunrise
Sat -- 07:59 AM PDT     3.37 feet High Tide
Sat -- 01:12 PM PDT     1.49 feet Low Tide
Sat -- 04:22 PM PDT     Moonrise
Sat -- 07:42 PM PDT     5.70 feet High Tide
Sat -- 08:18 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Point Arguello, California
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Point Arguello
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Sat -- 02:02 AM PDT     0.47 feet Low Tide
Sat -- 02:59 AM PDT     Moonset
Sat -- 05:50 AM PDT     Sunrise
Sat -- 08:06 AM PDT     3.32 feet High Tide
Sat -- 01:08 PM PDT     1.50 feet Low Tide
Sat -- 04:22 PM PDT     Moonrise
Sat -- 07:47 PM PDT     5.46 feet High Tide
Sat -- 08:19 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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 (14,3,4,5)
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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 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 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.