Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Guadalupe, 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 6:15AMSunset 7:43PM Tuesday April 25, 2017 5:25 AM PDT (12:25 UTC) Moonrise 5:05AMMoonset 6:07PM Illumination 0% Phase: New Moon; Moon at 29 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- 236 Am Pdt Tue Apr 25 2017
.gale warning in effect through late tonight...
Today..NW winds 20 to 30 kt with gusts to 40 kt. Strongest southern portion. Combined seas 9 to 11 ft dominant period 11 seconds.
Tonight..NW winds 20 to 30 kt with gusts to 40 kt. Strongest southern portion. Combined seas 10 to 11 ft dominant period 9 seconds...subsiding to 8 to 9 ft dominant period 9 seconds after midnight.
Wed..NW winds 15 to 25 kt with local gusts to 35 kt. Strongest western portion. Combined seas 7 to 9 ft dominant period 10 seconds.
Wed night..NW winds 20 to 25 kt with local gusts to 35 kt. Combined seas 8 to 9 ft dominant period 9 seconds.
Thu..NW winds 20 to 25 kt with gusts to 35 kt...becoming 25 to 30 kt with gusts to 40 kt in the afternoon. Combined seas 9 to 10 ft dominant period 8 seconds...building to 12 ft dominant period 8 seconds in the afternoon.
Thu night..NW winds 25 to 35 kt. Combined seas 12 to 13 ft dominant period 9 seconds.
Fri..NW winds 20 to 30 kt with gusts to 40 kt. Combined seas 11 to 13 ft.
Sat..NW winds 15 to 25 kt with gusts to 35 kt. Combined seas 8 to 11 ft.
PZZ600 236 Am Pdt Tue Apr 25 2017
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 1027 mb high was located 900 nm W of pt. Conception. A 1003 mb thermal low was near phoenix az. Widespread gale force winds are expected across most coastal waters tonight...and across the outer coastal waters through much of the week. Gale force gusts may affect the western portions of the nearshore waters at times through Fri.

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 251133
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
433 am pdt Tue apr 25 2017

Synopsis
Gusty northwest to north winds will likely continue through the
work week for portions of southwest california with weak to
moderate offshore winds possible by this weekend. A gradual
warming trend is expected for most areas through this weekend.

Short term (tdy-thu)
there were plenty of low clouds on northern and interior mountain
slopes, interior sections of slo and sba counties, the santa ynez
valley and southern portions of the central coast. There could be
a few light showers embedded in these clouds which could affect
northern slopes this morning. Otherwise, areas of high clouds
were drifting across the region early this morning. Any low clouds
should clear by late morning, with partly cloudy skies this
afternoon. Gusty NW to N winds continue across the interstate-5
corridor, southern santa barbara county through and below passes
and canyons, the santa clarita valley, and the antelope valley
this morning, and wind advisories in all those areas look good.

Expect advisory level northwest winds once again on the central
coast this afternoon and evening. Locally gusty north winds will
affect the san fernando valley, the valleys of vtu county and the
santa monica mountains.

An upper low was located in wyoming with a trough extending
southwestward into the great basin. There was broad cyclonic
northwesterly flow across the forecast areas. MAX temps
should edge upward a few degrees today as heights and thicknesses
rise slightly. Expect areas of low clouds on northern slopes and
across interior sections of slo and sba county, and possibly
across the santa ynez valley and portions of the central coast
tonight/wed morning, with mostly clear skies elsewhere. Winds
should decrease below advisory levels on the central coast this
evening, across the antelope valley late tonight, and across
southern sba county and the santa clarita valley Wed morning.

However good n-s grads and decent NW winds aloft should make
for windy conditions again Wed afternoon or evening into thu
morning. Wind advisories will likely be needed again on the
central coast Wed afternoon, and southern sba county and
the santa clarita valley Wed evening into Thu morning. Rising
heights and thicknesses should lead to several degrees of warming
in most areas on wed.

An upper low will drop into montana Wed night and thu.

This will cause northwesterly flow aloft to increase across the
region thu, and any lull in the winds Thu morning should be
brief. Additional wind advisories will likely be needed thu.

Max temps should be down a few degrees in most areas thu.

There may be a bit more in the way of stratus Wed night/thu
morning north of pt conception, and plenty of clouds are
expected on northern slopes with a slight chance of showers there
late Wed night into Thu morning

Long term (fri-mon)
the upper low will drop into utah on fri, with fairly strong nw
flow aloft over the forecast area and continued steep n-s
gradients. Gusty NW to N winds will continue to affect similar
portions of the region on fri. Do not expect too much in the way
of stratus Thu night into Fri morning, especially south of pt
conception. MAX temps on Fri should be up a few degrees in most
areas, mainly west of the mountains.

Height and thicknesses will rise over the weekend as an upper
ridge amplifies along the west coast. Low level flow will
turn more northeasterly by sat, and though low level flow will
weaken on Sunday, it will remain offshore, at least in the
morning. Expect MAX temps to jump Sat on, especially west of the
mountains, with highs likely in the lower 90s in the warmer valley
locations. There may be a few degrees of cooling across the
coastal plain on Sunday, especially near the coast, but it will be
very warm elsewhere. As the upper high begins to break down on
Monday, and flow turns onshore, expect cooling in coastal and
valley areas, with little change in temps in the mtns and deserts.

Aviation 24/1545z...

at 1545z, the marine inversion at klax was based at 1700 feet. The
top of the inversion was 3700 feet with a temperature of 13
degrees celsius.

Overall, moderate confidence in 18z TAF package. For sites north
of point conception, high confidence inVFR conditions through
this evening. For tonight, low confidence in return of MVFR cigs
as there is a 50% chance that conditions will remainVFR. For
coastal/valley sites south of point conception, there is a 40%
chance of MVFR CIGS 18z-22z from koxr southward. For tonight,
moderate confidence inVFR conditions prevailing.

Gusty west to northwest winds will continue across the area.

Llws and turbulence will be issues at ksba and possibly kvny and
kbur overnight.

Klax... Moderate confidence in 18z taf. There is a 20% chance of
MVFR CIGS 18z-22z. High confidence inVFR conditions tonight.

Kbur... High confidence in 18z taf. There is a 15% chance of MVFR
cigs 18z-22z. There is a 30% chance of llws/turbulence after 10z.

Marine 25/300 am...

for the outer waters, high confidence in current forecast. Strong
northwest winds are anticipated to continue through the week.

Currently, a gale warning is in effect through late Wednesday
night. There is a 70% chance that gale force winds will continue
through Friday.

For the inner waters, moderate confidence in current forecast. A
gale warning has been issued once again valid for this afternoon
for the inner waters south of point conception. Mainly affecting
the western portions. Otherwise, strong small craft advisory (sca)
level winds are expected each afternoon/evening through Friday
with a 30% chance of gale force wind gusts developing.Due to
strong winds throughout the waters, seas will be very choppy this
week, making for hazardous boating conditions through the week.

Lox watches/warnings/advisories
Ca... High surf advisory in effect until 9 am pdt this morning for
zones 34-35-40-41-87. (see laxcfwlox).

Wind advisory in effect from noon today to 9 pm pdt this
evening for zones 34-35. (see laxnpwlox).

Wind advisory in effect until 9 am pdt Wednesday for zones
39-52-88. (see laxnpwlox).

Wind advisory in effect until 9 am pdt Thursday for zones
53-54. (see laxnpwlox).

Wind advisory in effect until 3 am pdt Wednesday for zones
59-87. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 am pdt Wednesday for
zone 645. (see laxmwwlox).

Gale warning in effect from 3 pm this afternoon to 3 am pdt
Wednesday for zones 650-655. (see laxmwwlox).

Gale warning in effect until 3 am pdt Thursday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
gusty north to northwest winds are expected across southern santa
barbara county, the central coast, the i-5 corridor, and the
antelope valley. Advisory level winds expected at times in these
areas Thursday through early Friday, with local warning level
gusts. Elevated surf is possible on the beaches Thursday night
and Friday. Gusty northeast winds are possible across portions of
los angeles and ventura counties Saturday, with well above normal
temperatures expected.

Public... Db
aviation... Rat
marine... Kaplan
synopsis... Munroe
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 16 mi56 min 58°F10 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi96 min NNW 27 G 33 55°F 54°F8 ft1015.9 hPa (-0.9)
46218 - Harvest, CA (071) 36 mi56 min 51°F9 ft
46257 38 mi56 min 51°F9 ft
PTGC1 - Point Arguello, CA 39 mi86 min N 29 G 32 53°F 1015.1 hPa (-1.3)
HRVC1 41 mi74 min 1016.1 hPa
46215 - Diablo Canyon, CA (076) 42 mi66 min 51°F6 ft
PSLC1 - 9412110 - Port San Luis, CA 44 mi74 min W 6 G 7 55°F 51°F1016.3 hPa

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA42 mi88 minN 1510.00 miFair50°F49°F100%1015.5 hPa

Wind History from VBG (wind in knots)
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Last 24hrN18N13--N18
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1 day agoN11N14N13N16N16NW16
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2 days agoN3E5CalmCalmN8N13N13NW13N18
G25
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N13N9NW8N9N8N7NW6NW7N15N10N14

Tide / Current Tables for Point Arguello, California
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Point Arguello
Click for Map
Tue -- 03:48 AM PDT     -0.21 feet Low Tide
Tue -- 06:01 AM PDT     Moonrise
Tue -- 06:18 AM PDT     Sunrise
Tue -- 10:01 AM PDT     4.35 feet High Tide
Tue -- 03:42 PM PDT     0.48 feet Low Tide
Tue -- 07:03 PM PDT     Moonset
Tue -- 07:42 PM PDT     Sunset
Tue -- 10:01 PM PDT     5.47 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.320.8-0-0.20.21.12.23.34.14.34.13.32.31.30.60.511.93.14.35.15.55.1

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Tue -- 03:45 AM PDT     -0.17 feet Low Tide
Tue -- 06:02 AM PDT     Moonrise
Tue -- 06:18 AM PDT     Sunrise
Tue -- 09:50 AM PDT     4.54 feet High Tide
Tue -- 03:38 PM PDT     0.49 feet Low Tide
Tue -- 07:03 PM PDT     Moonset
Tue -- 07:42 PM PDT     Sunset
Tue -- 09:55 PM PDT     5.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.320.80-0.10.31.32.43.64.34.54.13.32.21.20.60.5123.34.65.55.85.4

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 (8,2,3,4)
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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.