Sunday, July22, 2018 L-36.com


Marine Weather and Tides
Rancho Palos Verdes, CA

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7/21/2018 Trying to make page Mobile Friendly

Sunrise 5:57AMSunset 8:01PM Sunday July 22, 2018 12:00 AM PDT (07:00 UTC) Moonrise 4:00PMMoonset 2:03AM Illumination 69% Phase: Waxing Gibbous; Moon at 9 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 829 Pm Pdt Sat Jul 21 2018
Tonight..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and sw 2 ft at 18 seconds. Patchy fog after midnight.
Sun..Winds variable 10 kt or less, becoming W 15 to 20 kt in the afternoon. Local gusts to 25 kt near point dume and through san pedro channel in the afternoon. Wind waves 1 to 3 ft. Mixed swell W 2 to 3 ft at 6 seconds and sw 2 ft at 17 seconds. Patchy fog in the morning.
Sun night..W winds 10 to 20 kt with local gusts to 25 kt, becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 3 to 4 ft at 5 seconds. Patchy fog after midnight.
Mon..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 4 ft at 7 seconds. S swell 2 ft. Patchy fog in the morning.
Mon night..W winds 15 to 20 kt, becoming 10 to 15 kt after midnight. Wind waves 2 to 3 ft. Mixed swell W 3 to 5 ft at 7 seconds and S 3 ft at 18 seconds. Patchy fog after midnight.
Tue..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft and S 3 ft. Patchy fog in the morning.
Tue night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 1 to 3 ft. Mixed swell W 3 to 5 ft and S 3 ft.
Wed..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 3 to 5 ft.
Thu..S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
PZZ600 829 Pm Pdt Sat Jul 21 2018
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 1034 mb surface high was located about 1000 nm northwest of point conception, while a 1009 mb thermal low was centered near yuma, arizona. West to northwest flow will increase across the coastal waters through Tuesday.

7 Day Forecast for Marine Location Near Rancho Palos Verdes, CA
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location: 33.7, -118.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 220640
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
1140 pm pdt Sat jul 21 2018

Synopsis 21 630 pm.

Record breaking heat is possible during the early to middle part
of next week in response to a strong ridge of high pressure
building over the desert southwest.

Short term (sat-tue) 21 931 pm.

The latest satellite imagery shows an upper-level ridge of high
pressure centered over the texas panhandle this evening. The ridge
center will push west into arizona through Tuesday. 500 mb heights
and 1000-500 mb thickness values climb across southern california
through Tuesday. A warming trend will develop as subsiding air
aloft presses down on top of the marine layer and thins it.

Onshore flow across the area will weaken some through the period.

A few very minor tweaks were made to temperatures in the latest
update, but overall, temperatures looks to be in good shape.

Remnant monsoonal moisture lingering over the area on Sunday could
bring an isolated shower or thunderstorm to the mountain areas on
Sunday afternoon and evening. Pops were increased for this period
but moisture looks more limited relative today.

Gusty sundowner winds could develop as soon as Sunday evening
across southern santa barbara county. Nam-wrf solutions suggest
surface pressure gradients between ksba and ksmx tightening to
near -4 mb as early as Sunday evening. An advisory is possible for
Sunday afternoon and night, becoming likely for Monday afternoon
and night, and Tuesday afternoon and night. Advisory level winds
are also possible through the interstate 5 corridor each night
through morning starting Monday night. Hot and dry conditions
developing will bring elevated fire weather concerns the next
several days. Critical fire weather conditions are possible for
areas with sundowner winds. A fire weather watch is in effect
from late Tuesday afternoon through Thursday morning.

***from previous discussion***

Long term (wed-sat) 21 200 pm.

Potential for record breaking heat continues into the long term
with excessive heat watches warnings continuing through Thursday
(again see npwlox for the latest). The aforementioned ridge of
high pressure is expected to gradually break down while shifting
nearly overhead through Thursday before shifting northeast into
the interior. This will support continued hot conditions for
interior areas through Thursday before gradual cooling commences
heading into next weekend. Closer to the surface, gusty and
possibly advisory level sundowner winds may continue for western
portions of the sba south coast into Wednesday or Thursday evening
with breezy but sub- advisory winds also possibly continuing in
the la and vta mountains near the i-5 corridor. Once these winds
relax, models are indicating the development of a moderate eddy
circulation by Thursday or Friday which could bring significant
cooling and moistening of the lower atmosphere to the coastal
plain, especially south of point conception. It may also mark the
return of more widespread night to morning low clouds to these
areas.

If the ridge of high pressure does reposition near the great basin
in nevada, it would open the door for a potential return of
monsoonal moisture to the region.

Aviation 22 0639z.

At 0545z at klax, the marine layer was 1000 feet deep at klax.

The top of the inversion was around 2400 feet with a temperature
near 25 degrees celsius.

Good confidence in ksmx and ksbp as well as inland tafs.

Low confidence in coastal tafs ksba and southward. Stratus clouds
will develop haphazardly. Cig basses will vary from 008 to 012 and
may dip into lifr values at ksba, koxr and kcma.VFR transition
Sunday morning could be anywhere from + - 90 minutes from time of
fcst. Good confidence in tafs after 18z.

Klax... Moderate confidence in taf. There is a 30 percent chc of
ovc008 conds through 15z.VFR conds could arrive as late 1830z.

Good confidence in no east wind component over 4 kt.

Kbur... High confidence in cavu taf.

Marine 21 926 pm.

Moderate-to-high confidence in the current forecast. West to
northwest winds will increase across the coastal waters through
Monday evening. There is a 80 percent chance of small craft
advisory level winds developing between Sunday afternoon and
evening, then continuing through at least Tuesday across the
southern two outer waters zones (pzz673 pzz676). There is a 30
percent chance of gales on Monday night. Winds will continue to
increase with advisory level winds likely across the northern
outer waters on Monday afternoon and evening.

For the nearshore waters north of point conception, small craft
advisory conditions are not expected through Monday morning, then
small craft advisory conditions will become likely, mainly during
the afternoon and evening Monday through Thursday.

For the inner waters south of point conception, there is a 60
percent chance of advisory level winds across the santa barbara
channel each afternoon and night through Wednesday. There is a 30
percent chance of similar conditions across the inner water
portion south of point mugu.

A long-period south swell from the southern hemisphere is expected
to move into the waters early next week.

Beaches 21 930 pm.

A long-period southerly swell originating from near new zealand
will move north out of the southern hemisphere through Wednesday.

Strong rip currents and elevated-to-high surf conditions are
likely at southern california beaches between Monday and
Wednesday.

Fire weather 21 336 pm.

Some residual monsoonal moisture with instability will bring isolated
thunderstorm activity to the mountains of los angeles and ventura
counties and antelope valley through early evening. A strong upper level high
pressure system building over southwest california will bring a long
duration heat wave Sunday through at least Friday, peaking in
strength from Monday through Thursday. High temperatures between 100
and 110 degrees will be common in the valleys, lower mountains, and
deserts during the peak, with humidities likely falling to between
10 and 20 percent by Tuesday. Several nights of gusty sundowner
winds are expected across southern santa barbara county from
Sunday night through Wednesday night when gusts between 30 and 45
mph will be common across western portions, with isolated gusts as
high as 50 mph near gaviota and refugio hills. These persistent
gusty sundowner winds will add to the fire weather threat across
southern santa barbara county, with conditions potentially
reaching critical levels by late Tuesday when humidities fall
between 10 and 20 percent and temperatures potentially climb to
around 100 degrees. The projected sba-smx gradient for Sunday
night is -4.6 mb, and could reach or exceed -5 mb on Monday night,
Tuesday night, and Wednesday night. A fire weather watch has been
issued for the santa barbara south coast and mountains. Breezy
northwest to north conditions are also expected across the
interstate 5 corridor in the los angeles county mountains.

The long duration of hot and dry conditions coupled with dry fuels
will bring an increased risk of large vertical plume growth across
interior sections next week, especially in the foothills and
mountains. Widespread elevated fire weather conditions will occur
next week across southwest california due to the long duration heat
wave. Very warm overnight low temperatures and poor humidity recoveries
in the foothills and mountains will add to the fire weather threat
in those areas.

Lox watches warnings advisories
Ca... Excessive heat watch in effect from Tuesday morning through
Thursday evening for zones 34>38-51. (see laxnpwlox).

Excessive heat warning in effect from 10 am Monday to 8 pm
pdt Thursday for zones 39>41-44>46-52>54-59-88-547. (see laxnpwlox).

High surf advisory in effect from 8 am to 9 pm pdt Monday for
zones 40-41-87. (see laxcfwlox).

Fire weather watch in effect from Tuesday afternoon through
Thursday morning for zones 239-252. (see laxrfwlox).

Pz... Small craft advisory in effect from 3 pm Sunday to 3 am pdt
Monday for zones 650-673-676. (see laxmwwlox).

Hazard potential outlook (tue-sat)
An extended heat wave is expected Monday through at least
Thursday of next week, especially for inland areas. Widespread
elevated fire weather conditions are expected to develop during
this time. Elevated to high surf is likely Monday through
Wednesday, focused across south facing beaches.

Public... Hall munroe
aviation... Rorke
marine... Hall
beaches... Hall
fire... Gomberg
synopsis... Munroe
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 2 mi37 min 67°F1016.9 hPa
AGXC1 4 mi31 min WSW 8.9 G 11 68°F 1017 hPa
PFDC1 4 mi31 min SSW 8.9 G 11
PXAC1 5 mi31 min WNW 1.9 G 1.9
PSXC1 6 mi31 min SW 4.1 G 5.1
PFXC1 6 mi31 min WSW 6 G 8 70°F
BAXC1 6 mi31 min SW 4.1 G 4.1
46222 - San Pedro, CA (092) 6 mi31 min 68°F3 ft
46256 6 mi31 min 66°F2 ft
PRJC1 7 mi31 min W 9.9 G 11
46253 11 mi31 min 70°F3 ft
46221 - Santa Monica Bay, CA (028) 20 mi31 min 72°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi31 min ESE 8 G 9.9 71°F1017 hPa
46262 37 mi31 min 71°F4 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 40 mi21 min W 5.8 G 7.8 68°F 71°F1016.7 hPa67°F

Wind History for Los Angeles Pier 400, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA7 mi4.2 hrsW 910.00 miA Few Clouds70°F64°F83%1014.6 hPa
Long Beach, Long Beach Airport, CA12 mi68 minS 310.00 miFair72°F63°F73%1016.4 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi68 minWSW 610.00 miPartly Cloudy69°F64°F84%1016.6 hPa
Los Angeles, Los Angeles International Airport, CA17 mi68 minSSW 610.00 miMostly Cloudy70°F64°F82%1016.4 hPa
Fullerton, Fullerton Municipal Airport, CA21 mi68 minN 010.00 miFair73°F62°F69%1016.3 hPa
Avalon Catalina Airport, CA21 mi70 minSW 510.00 miFair66°F55°F70%1016.1 hPa
Los Angeles / USC Campus Downtown, CA22 mi74 minN 010.00 miFair70°F63°F79%1016.2 hPa
John Wayne-Orange County Airport, CA23 mi68 minWSW 410.00 miPartly Cloudy70°F63°F79%1016.5 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi70 minESE 410.00 miA Few Clouds68°F63°F84%1016.4 hPa

Wind History from TOA (wind in knots)
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Last 24hr--------------------W9W9W6W11W12W14W15W15W18W17
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1 day ago--------------------W6W4W7W8W13W14W13W15W15W6W17W16W16W15
2 days ago--------------------CalmCalm45W7W10W10W14W15W15W14W13W11W10

Tide / Current Tables for Los Angeles (outer harbor), California
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Los Angeles (outer harbor)
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Sun -- 01:15 AM PDT     0.61 feet Low Tide
Sun -- 02:03 AM PDT     Moonset
Sun -- 05:58 AM PDT     Sunrise
Sun -- 07:30 AM PDT     3.44 feet High Tide
Sun -- 12:13 PM PDT     2.20 feet Low Tide
Sun -- 03:59 PM PDT     Moonrise
Sun -- 06:46 PM PDT     5.58 feet High Tide
Sun -- 08:00 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.71.21.82.53.13.43.43.22.82.42.22.32.73.44.24.95.45.65.24.53.42.2

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Sun -- 01:17 AM PDT     0.61 feet Low Tide
Sun -- 02:03 AM PDT     Moonset
Sun -- 05:57 AM PDT     Sunrise
Sun -- 07:33 AM PDT     3.55 feet High Tide
Sun -- 12:17 PM PDT     2.25 feet Low Tide
Sun -- 03:59 PM PDT     Moonrise
Sun -- 06:48 PM PDT     5.73 feet High Tide
Sun -- 08:00 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.60.71.21.82.63.23.53.53.32.92.52.32.32.73.44.255.65.75.44.63.52.3

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 (3,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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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.