Sunday, September24, 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 6:51AMSunset 6:55PM Sunday September 24, 2017 1:44 AM PDT (08:44 UTC) Moonrise 10:06AMMoonset 9:02PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 812 Pm Pdt Sat Sep 23 2017
.small craft advisory in effect until 3 am pdt Sunday...
Tonight..NW winds 10 to 20 kt with gusts to 25 kt. Combined seas 6 to 7 ft dominant period 10 seconds...subsiding to 5 to 6 ft dominant period 10 seconds after midnight.
Sun..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 4 to 5 ft at 10 seconds.
Sun night..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. NW swell 4 to 5 ft at 9 seconds.
Mon..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 4 to 5 ft at 9 seconds.
Mon night..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 5 to 6 ft at 9 seconds.
Tue..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft at 9 seconds.
Tue night..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft.
Wed..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft.
Thu..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell nw 3 ft and S 2 ft.
PZZ600 812 Pm Pdt Sat Sep 23 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 1025 mb high pressure center was located 900 nm nw of point conception...and a 1004 mb low was near las vegas. The high will push into nevada through early next week. Short period choppy seas will persist into next week.

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 240804
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
104 am pdt Sun sep 24 2017

Synopsis
Gradually strengthening offshore flow will bring a warming and
drying trend with mostly clear skies to the area through next
week. There will be some gusty north to northeast winds at times
over the region, especially below and through passes and canyons.

Temperatures will be a few degrees above normal for many areas by
early next week, then increase to much above normal by late in
the week.

Short term (sun-wed)
a rather quiet evening on the forecast desk as we have a non-
existent inversion and no clouds across southwest california or
the coastal waters. Temperatures peaked out well below normal for
most areas for another day, but that will change tomorrow. Locally
gusty north to northwest winds occurring near canyons and passes
of the santa ynez range, but speeds are below last evening. Also
getting gusty winds over the san gabriel mountains and parts of
the antelope valley this evening. Expect winds to slowly decrease
during the night across south santa barbara county while across
western los angeles and eastern ventura counties northeast winds
will increase. A weak santa ana will make an appearance late
tonight and into Sunday morning and could make it briefly to the
oxnard plain and into the santa monica mountains. A few gusts
could exceed wind advisory levels (35 mph) across the moorpark to
simi valley area and near the 126 freeway, but gusty conditions
should not be widespread or long-lasting. Winds will shift back to
onshore in the afternoon. This will be the start of significant
warming and drying trend across the region. Temperatures will
rebound to near normal on Sunday with a few coastal areas possibly
pushing above normal before the seabreeze arrives. Some mountain
areas will see 15-20 degree temperature increases on Sunday
compared to today. A large upper trough over the great basin will
be reinforced by another low pressure system dropping into the
southwest states by mid-week.

***from previous discussion***
for Sunday morning, lax-daggett gradient expected to be around -3
mb, and could increase to between -3.5 and -4 mb range on Monday
and Tuesday mornings. Upper level wind support is fairly weak
on Sunday and Monday but could nudge up a bit by Tuesday Tuesday
night as models trending towards a closed low developing somewhere
in the deserts of southeast california. For the most part,
expecting winds to remain below advisory levels during the short
term, with gusts generally ranging between 30 and 40 mph in the
mountains (including the santa monicas), and between 20 and 30 mph
in the valleys.

The combination of gusty offshore winds along with warmer
temperatures, lowering humidities, and very dry fuels will bring
an extended period of elevated fire danger, with brief critical
fire weather conditions possible. Please see fire discussion below
for more details.

Long term (thu-sun)
long range models still showing potential for northeast winds
gusting between 30 and 40 mph across the mountains on Wednesday,
then offshore winds should diminish slightly for Thursday and
Friday. Despite the weakening of the offshore flow, temperatures
away from the coast are expected to continue climbing well into
the 90s on Wednesday and Thursday, with the potential for
isolated triple digit readings in the valleys by Friday. While
earlier model runs had suggested that next Saturday could bring
the warmest temperatures of the next 7 days with a slight
resurgence of offshore flow, the latest 12z ECMWF has thrown a
bit of a curve ball with a weak cutoff low digging down the
coast. If this solution were to verify, we would have to begin
a cooling trend for next Saturday, but for now, will ride the
course til we get some better model convergence. Also of note,
there will be some very warm overnight low temperatures in
the foothills and wind exposed locations.

Aviation
24 06z
at 06z at klax... There was no marine layer nor an inversion.

Overall... High confidence in taf. There is a 20 percent chance
of ifr conditions ksmx from 10z-14z.

Klax... High confidence in cavu taf. East winds will be less than
8kt.

Kbur... High confidence in cavu taf.

Marine
23 800 pm
confident in low-end small craft advisory (sca) level winds
continuing over the outer waters through tonight, especially
between point conception and san nicolas island. The western santa
barbara channel will also see low-end SCA winds this evening, but
should be localized and brief enough to not need an advisory. All
areas will experience a short-period chop from these winds into
Sunday. No expecting SCA winds through the middle of next week,
but afternoon and evening onshore winds will get into the 10 to 20
kt range everywhere starting Sunday with the warm conditions
inland. Pockets of dense fog cannot be ruled at times through next
week... Please stay aware of your immediate environment.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 am pdt early this
morning for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (wed-sun)
a prolonged period of elevated fire danger is expected Tuesday
through Saturday due to the combination of gusty offshore winds,
very warm temperatures, low humidities, and very dry fuels.

Brief critical fire weather conditions will be possible at times
especially in the mountains. There will be potential heat
impacts by Friday and Saturday as triple digit temperatures
are possible for warmest valley locations.

Public... Boldt gomberg
aviation... Rorke
marine... Kittell sirard
synopsis... Sirard
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 16 mi53 min 63°F7 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi55 min NNW 12 G 14 61°F 60°F5 ft1011.6 hPa (+0.0)
46218 - Harvest, CA (071) 36 mi45 min 58°F6 ft
PTGC1 - Point Arguello, CA 39 mi45 min N 16 G 16 58°F 1011.1 hPa (-0.7)
HRVC1 41 mi45 min 58°F 1011.3 hPa (-0.6)
46215 - Diablo Canyon, CA (076) 42 mi48 min 56°F4 ft
CPXC1 44 mi27 min Calm G 1 57°F 1012.5 hPa46°F
PSLC1 - 9412110 - Port San Luis, CA 44 mi45 min S 1 G 2.9 58°F 56°F1012.6 hPa (+0.0)

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 mi1.8 hrsESE 69.00 miFair50°F47°F91%1012 hPa

Wind History from VBG (wind in knots)
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Last 24hrCalmE3NE4E3E5NE6SE4NE5NE10N9N14NW11NW12NW15NW15NW15NW11N10NW7N7E4SE4SE6E5
1 day agoN11N4SE4E3E3NE3NE3N46NW8N7NW11NW12
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Tide / Current Tables for Point Arguello, California
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Point Arguello
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Sun -- 01:25 AM PDT     3.92 feet High Tide
Sun -- 06:46 AM PDT     2.00 feet Low Tide
Sun -- 06:52 AM PDT     Sunrise
Sun -- 11:03 AM PDT     Moonrise
Sun -- 01:03 PM PDT     4.73 feet High Tide
Sun -- 06:55 PM PDT     Sunset
Sun -- 07:57 PM PDT     0.96 feet Low Tide
Sun -- 09:59 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.63.93.93.532.52.122.22.73.444.54.74.643.32.41.61.111.11.62.2

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Sun -- 01:10 AM PDT     3.98 feet High Tide
Sun -- 06:38 AM PDT     2.05 feet Low Tide
Sun -- 06:52 AM PDT     Sunrise
Sun -- 11:03 AM PDT     Moonrise
Sun -- 12:55 PM PDT     4.86 feet High Tide
Sun -- 06:56 PM PDT     Sunset
Sun -- 07:49 PM PDT     1.05 feet Low Tide
Sun -- 10:00 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.743.93.52.92.42.12.12.32.93.54.24.74.94.643.22.31.61.21.11.31.72.3

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.