Monday, June26, 2017 L-36.com


Marine Weather and Tides
Guadalupe, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 5:49AMSunset 8:20PM Monday June 26, 2017 1:45 AM PDT (08:45 UTC) Moonrise 7:51AMMoonset 9:49PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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- 844 Pm Pdt Sun Jun 25 2017
.small craft advisory in effect through late Tuesday night...
Tonight..NW winds 15 to 25 kt with local gusts to 30 kt. Strongest around point conception. Combined seas 5 to 6 ft dominant period 6 seconds. Patchy fog after midnight.
Mon..NW winds 15 to 25 kt with local gusts to 30 kt. Strongest around point conception. Combined seas 5 to 6 ft dominant period 6 seconds. Patchy fog in the morning.
Mon night..NW winds 15 to 25 kt with gusts to 30 kt. Strongest around point conception. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Tue..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy fog in the morning.
Tue night..NW winds 20 to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Wed..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog in the morning.
Wed night..NW winds 20 to 30 kt...becoming 15 to 20 kt with gusts to 25 kt after midnight. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Thu..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.
Fri..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 844 Pm Pdt Sun Jun 25 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...a 1012 mb low was located 400 nm W of point conception with a 1017 mb high located 200 nm W of point conception. A 1006 mb thermal low was located near las vegas.

7 Day Forecast for Marine Location Near Guadalupe, CA
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location: 34.74, -121.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 260625
afdlox
area forecast discussion
national weather service los angeles oxnard ca
1125 pm pdt Sun jun 25 2017

Aviation discussion updated...

Synopsis
Hot temperatures continue away from the coast today. Offshore
trends and a weakened marine layer will warm the coastal valleys
as well. A trough of low pressure off the california coast will
weaken high pressure aloft beginning Monday afternoon and bring a
cooling trend as onshore flow strengthens.

Short term (sun-wed)
an upper-level ridge of high pressure over southern arizona will
flatten and recenter over baja california early this week as a
trough of low pressure near 37n and 132w will move north of the
area. An increase in onshore flow will bring a cooling trend to
the area, more pronounced on Tuesday. A very warm and dry air mass
in place across the interior valleys and mountains of los angeles
county will combine with a stronger sea breeze circulation to
bring critical fire weather conditions to the area.

A northerly flow became a more pronounced today, which model
solutions failed to pick up on. Local temperature studies would
have been the way to go and would have provided a little better
results and reduced errors. MOS guidance values from last night
handled temperatures poorly missing by up to 15 degrees at kvny
and up to 21 degrees at kbur. Another warm day looks on tap for
tomorrow as the ridge remains in place ahead of the increasing
onshore push. Temperatures have been nudged higher in the latest
update bringing temperatures a few degrees cooler than today, yet
exceeding current guidance values for most valley areas. With a
delay in the sea breeze circulation, a heat advisory was extended
for the los angeles and ventura county mountains into Monday
evening.

Locally gusty sundowner winds continue across the santa barbara
south coast and santa ynez mountain range this evening as the a
marginal northerly gradient has developed across the area. No wind
advisory issuance is expected at this time as upper-level support
is lacking.

An update will be issued shortly.

*** from previous discussion ***
by Tuesday or Wednesday, most areas should be back to normal high
temps. Marine lyr expected to expand to cover most coast and
valley areas by Wednesday.

Pretty strong northwest gradients expected across the santa ynez
range the next couple days but very minimal support aloft. So
while there will be gusty winds there they should generally remain
below advisory levels with the strongest winds up in the
foothills. Increasing westerly winds expected in the antelope
valley, especially Tuesday and Wednesday when they may be close to
advisory levels in the foothills.

Long term (thu-sun)
nothing really remarkable in the weather from mid week on as we
maintain a fairly typical late june pattern. Weak troughing now
expected to remain in place going into next weekend with minimal
day to day changes in temps (near to slightly below normal) and
marine lyr coverage (coast valleys night and morning).

Aviation 26 12z.

At 0530z at klax... The inversion was around 500 feet. The top of
the inversion was around 2900 feet with a temperature of near 32
degrees celsius.

Overall... Moderate confidence in the current coastal tafs and
high confidence in the interior tafs. Patchy low clouds and fog
will develop along the coast overnight... Primarily along the
central coast. There is a thirty five percent chance of mfr
conditions developing toward daybreak and a ten percent chance of lifr ifr
conditions. Any reduced conditions will improve toVFR by 18z.

Otherwise and elsewhereVFR conditions will prevail.

Klax... Moderate confidence in the current tafs. There is a
thirty percent chance of patchy low clouds and fog developing in
the terminal vicinity and a ten percent chance of mfr conditions
developing toward daybreak. Any reduced conditions will improve to
vfr by 18z. OtherwiseVFR conditions will prevail. No east winds
greater than seven knots are expected during the forecast period.

Kbur... High confidence in the current tafs.VFR conditions will
prevail throughout the period.

Marine 25 1000 pm.

For the outer waters... Small craft advisory (sca) level
conditions will continue through at least Tuesday evening. Wind
speeds may weaken to below SCA levels during the morning hours but
will strengthen again in the afternoon.

For the inner waters... SCA level winds will develop in the afternoon
and evening hours through Tuesday evening across the northern
nearshore waters as well as in the east santa barbara channel.

Local gusts up to 25 kt could also develop during this time from
point mugu to san mateo point west of santa catalina island.

In addition to the elevated winds, a short period west to
northwest swell could impact the coastal waters Monday through
Wednesday.

Lox watches warnings advisories
Ca... Heat advisory in effect until 9 pm pdt Monday for zones
53-54. (see laxnpwlox).

Red flag warning in effect from 9 am to 9 pm pdt Monday for
zones 254-259-288. (see laxrfwlox).

Pz... Small craft advisory in effect until 3 am pdt Wednesday for
zones 645-650-670-673-676. (see laxmwwlox).

Hazard potential outlook (wed-sun)
no significant hazards expected.

Public... Hall mw
aviation... Kj
marine... Ck
synopsis... Jld
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 16 mi46 min 59°F4 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi56 min NW 7.8 G 7.8 58°F 57°F3 ft1016 hPa (+0.0)
46218 - Harvest, CA (071) 36 mi46 min 56°F4 ft
46257 38 mi46 min 56°F4 ft
PTGC1 - Point Arguello, CA 39 mi46 min N 28 G 29 56°F 1014.9 hPa (-0.3)
46215 - Diablo Canyon, CA (076) 42 mi56 min 57°F3 ft
PSLC1 - 9412110 - Port San Luis, CA 44 mi46 min N 1.9 G 2.9 57°F 58°F1016.9 hPa (+0.3)

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, CA42 mi48 minESE 310.00 miFair49°F48°F99%1016.2 hPa

Wind History from VBG (wind in knots)
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Last 24hrN9N10N8N6NW5NE5N5N6NW6N11N13NW14N12NW11N13N12N14
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1 day agoNW5N5N7N7N4N4NE4W7NW8N12N12
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2 days agoCalmCalmCalmCalmNE3CalmCalmCalmW64W5W7W76W7N7N7NW6NW6N7N5N5NE4NW4

Tide / Current Tables for Point Arguello, California
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Point Arguello
Click for Map
Mon -- 05:51 AM PDT     Sunrise
Mon -- 06:40 AM PDT     -1.40 feet Low Tide
Mon -- 08:48 AM PDT     Moonrise
Mon -- 01:32 PM PDT     4.15 feet High Tide
Mon -- 06:17 PM PDT     2.17 feet Low Tide
Mon -- 08:19 PM PDT     Sunset
Mon -- 10:46 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.15.44.22.60.9-0.4-1.2-1.4-0.90.21.42.63.64.14.13.73.12.52.22.32.83.64.55.3

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Mon -- 05:52 AM PDT     Sunrise
Mon -- 06:38 AM PDT     -1.35 feet Low Tide
Mon -- 08:48 AM PDT     Moonrise
Mon -- 01:19 PM PDT     4.10 feet High Tide
Mon -- 06:05 PM PDT     2.18 feet Low Tide
Mon -- 08:19 PM PDT     Sunset
Mon -- 10:45 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.45.54.22.50.8-0.5-1.2-1.3-0.80.31.52.83.74.143.52.92.42.22.433.84.85.6

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 (4,6,7,8)
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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.