Sunday, April30, 2017 L-36.com


Marine Weather and Tides
Lompoc, CA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:09AMSunset 7:47PM Sunday April 30, 2017 9:52 AM PDT (16:52 UTC) Moonrise 9:12AMMoonset 11:34PM Illumination 22% Phase: Waxing Crescent; Moon at 5 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- 811 Am Pdt Sun Apr 30 2017
.small craft advisory in effect through Tuesday morning...
Today..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 7 to 8 ft dominant period 9 seconds.
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 8 to 9 ft dominant period 9 seconds.
Mon..NW winds 15 to 25 kt with local gusts to 30 kt in the afternoon. Strongest northwestern portion. Combined seas 7 to 8 ft dominant period 9 seconds.
Mon night..Northwestern portion...nw winds 25 to 30 kt. Elsewhere...nw winds 20 to 25 kt becoming 15 to 20 kt after midnight. Combined seas 8 to 10 ft dominant period 9 seconds.
Tue..N winds 15 to 25 kt with gusts to 30 kt...becoming nw 15 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 8 to 9 ft dominant period 10 seconds.
Tue night..NW winds 15 to 20 kt...becoming N 10 to 20 kt after midnight. Gusts to 25 kt. Wind waves 2 to 4 ft. NW swell 7 to 8 ft at 9 seconds.
Wed..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft.
Thu..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell nw 4 to 5 ft and S 3 ft.
PZZ600 811 Am Pdt Sun Apr 30 2017
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 1030 mb high pressure center was located 500 nm west of medford.

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 301142
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
442 am pdt Sun apr 30 2017

Aviation discussion updated...

Synopsis
It will be sunny and warm today. A weak marine layer will develop
on Monday and will bring some cooling to the coastal areas. Mostly
clear skies and slightly above normal temperatures will continue
for the upcoming week.

Short term (tdy-tue)
high pressure and weak offshore flow have brought clear skies to
the area. There will be some weak morning canyon winds but nothing
of note. The coasts will cool some due to the early seabreeze and
the vlys likely be at least as warm as ydy or maybe a little
warmer due to a warmer airmass. The interior will for sure be a
warmer.

A weak eddy will bring some morning marine layer clouds to the la
coast but otherwise Monday will be a sunny day. The weak offshore
flow will turn onshore and this knock 3 to 6 degrees off of the
coastal temps and 2 to 4 degrees from the vly temps. The upper
level ridge actually strengthens a touch and the interior will see
further warming.

The NAM forecasts a weak burst of north winds on Tuesday morning
so there may be a few canyon breezes in the morning. No where near
strong enough to push the stratus away from the SRN la county
coast so the lgb-lax area will likely have low clouds in the
morning. Coastal and vly temps are forecast to be similar to
Monday although if the north winds are just a little stronger
there will be some warming in the vlys. Temperature guidance
suggests further interior warming but the ridging patter is
unchanged from Monday and really think temps will be quite
similar to Monday's values.

Long term (wed-sat)
00z ec and GFS have come into agreement for the long term forecast
with the GFS trending to the more interesting cooler wetter ec.

The ridge will persist over the state Wednesday and really do not
see much change in the weather from Tuesday.

The ridge will push eastward on Thursday and by afternoon the
state will be on the back side of it. But all in all it should
have too much of an effect on the weather. There will be some
morning marine layer clouds in the lax-lgb area but otherwise it
will be a sunny day. MAX temps in the interior will be 5 to 10
degrees above normal while the coastal areas will see highs at or
a few degrees above normal.

An upper low begins to work its way down the west coast on Friday.

Hgts will lower and the upper level flow will take on a cyclonic
bent. The marine layer clouds will expand and MAX temps across the
vlys and the interiors will cool.

The upper low elongates and moves further south on Saturday. This
will create a large marine layer that will cover the coasts and
vlys. MAX temps will drop to below normal for the first time in
more than a week
the upper low expands and moves into the area Saturday night and
Sunday. If this comes true there will be scattered shower activity
across the area. But this solution is still along ways away and
could well change with time.

Aviation 30/12z.

At 09z at klax... There was a surface based inversion. The top
was around 1200 feet with a temperature of about 22 degrees
celsius.

Overall... High confidence in the current tafs. There is a less
than ten percent chance of MVFR conditions developing along the
los angeles county coastal sites through 16z and a fifteen
percent chance of ifr/MVFR conditions developing Monday morning.

Otherwise and elsewhereVFR conditions will prevail.

Klax... High confidence in the current taf. There is a less than
ten percent chance of MVFR conditions developing through 16z
and a fifteen percent chance of ifr/MVFR conditions developing
Monday morning. OtherwiseVFR conditions will prevail. Any east
winds will be 7 knots or less.

Kbur... High confidence in the current taf.VFR conditions will
prevail.

Marine 30/230 am.

Small craft advisory (sca) level conditions will persist across
the outer waters through at least Tuesday. The winds may drop
below SCA conditions in the morning but will strengthen again in
the afternoon and evening hours. Winds over the santa barbara
channel and santa monica basin will approach SCA conditions at
times during this period as well.

Due to the gusty winds... Choppy seas should be expected in most
areas (including near shore) into next week.

Lox watches/warnings/advisories
Ca... None.

Pz... Small craft advisory in effect until 9 am pdt Tuesday for
zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (tue-sat)
no significant hazards expected.

Public... Rorke
aviation... Kj
marine... Kj
synopsis... Dss
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 mi63 min NW 16 G 18 53°F 53°F5 ft1018.2 hPa (+1.0)
HRVC1 10 mi53 min 1019.4 hPa (+1.1)
46257 13 mi53 min 51°F7 ft
46218 - Harvest, CA (071) 14 mi53 min 51°F7 ft
PTGC1 - Point Arguello, CA 15 mi53 min N 16 G 17 51°F 1019.5 hPa (+1.1)
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 37 mi43 min SSW 5.8 G 7.8 1018.9 hPa
NTBC1 - Santa Barbara, CA - 9411340 44 mi77 min ESE 1.9 G 1.9 60°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 47 mi63 min NNW 12 G 16 53°F 52°F6 ft1020.4 hPa (+1.0)

Wind History for Santa Barbara, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Lompoc Airport, CA20 mi57 minN 010.00 miFair59°F41°F51%1019.8 hPa

Wind History from LPC (wind in knots)
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Last 24hrCalm3W6W14W13W15W13W9W8W8W7W4CalmE3Calm--E3E4E4E4E3CalmE5Calm
1 day agoW12W13
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Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Sun -- 12:45 AM PDT     5.70 feet High Tide
Sun -- 06:13 AM PDT     Sunrise
Sun -- 08:09 AM PDT     -0.85 feet Low Tide
Sun -- 10:12 AM PDT     Moonrise
Sun -- 03:04 PM PDT     3.54 feet High Tide
Sun -- 07:32 PM PDT     2.38 feet Low Tide
Sun -- 07:46 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.55.75.34.331.60.4-0.5-0.8-0.7-00.91.92.83.33.53.43.12.72.42.42.73.34

Tide / Current Tables for Point Arguello, California
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Point Arguello
Click for Map
Sun -- 12:53 AM PDT     5.39 feet High Tide
Sun -- 06:13 AM PDT     Sunrise
Sun -- 08:12 AM PDT     -0.96 feet Low Tide
Sun -- 10:12 AM PDT     Moonrise
Sun -- 03:12 PM PDT     3.57 feet High Tide
Sun -- 07:45 PM PDT     2.25 feet Low Tide
Sun -- 07:46 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.25.45.14.231.60.4-0.5-0.9-0.8-0.20.71.82.73.33.63.53.12.72.32.32.533.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

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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weather_mapweather_map weather_map

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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.