Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
La Crescenta-Montrose, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:22AMSunset 4:51PM Monday November 12, 2018 11:20 PM PST (07:20 UTC) Moonrise 11:52AMMoonset 10:10PM Illumination 27% 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 818 Pm Pst Mon Nov 12 2018
.small craft advisory in effect through Tuesday afternoon...
Tonight..From point mugu to santa Monica and S of palos verdes, ne winds 15 to 25 kt. Elsewhere, ne winds 5 to 10 kt. Combined seas 2 to 3 ft dominant period 16 seconds.
Tue..From point mugu to santa Monica, ne winds 20 to 30 kt. Elsewhere, E winds 10 to 15 kt becoming ne 15 to 20 kt in the afternoon. Combined seas 2 to 4 ft dominant period 16 seconds.
Tue night..From point mugu to santa Monica, ne winds 20 to 25 kt becoming 10 to 15 kt after midnight. Elsewhere, W winds 5 to 10 kt becoming ne after midnight. Wind waves 2 to 4 ft. S swell 3 ft at 16 seconds.
Wed..N winds 10 to 15 kt. Wind waves 2 ft or less. S swell 3 ft at 16 seconds.
Wed night..W winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 12 seconds and S 2 ft at 16 seconds.
Thu..NE winds 5 to 10 kt, becoming W in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 12 seconds and S 2 ft at 16 seconds.
Thu night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 12 seconds and S 2 ft at 16 seconds.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
Sat..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
PZZ600 818 Pm Pst Mon Nov 12 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 7 pm pst, a 1042 mb high pressure center was located over wyoming with a ridge extending to a 1026 mb high 550 nm W of point conception. Gusty northeast winds will affect the southern coastal waters through Tue, especially the nearshore waters south of santa barbara.


7 Day Forecast for Marine Location Near La Crescenta-Montrose, CA
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location: 34.26, -118.28     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 130558 aaa
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
958 pm pst Mon nov 12 2018
updated aviation discussion

Synopsis 12 140 pm.

Moderate to locally strong santa ana winds will continue through
Tuesday. Lighter offshore winds are expected Wednesday and
Thursday. A switch to onshore and a return of the coastal marine
layer will be possible Friday into next weekend. A weather pattern
change is expected during thanksgiving week with the
possibilities for rain.

Short term (mon-thu) 12 852 pm.

Gusty winds continued across the region this evening, with winds
still gusting to between 45 and 55 mph in the mountains of l.A.

And vtu counties including the santa monica range and to between
30 and 40 mph in the windier valley and coastal locations of l.A.

And vtu counties. Pressure gradients are still greater than 6 mb
offshore between klax and kdag this evening, and are forecast to
increase to between 7 and 8 mb offshore shortly after daybreak on
tue. While upper support in the form of 850 mb winds and
subsidence is not quite as good on tue, the increase offshore
gradients will probably make up for it. Therefore, expect another
very windy period very late tonight and Tuesday morning, during
the diurnal peak of the santa ana winds. High wind warnings remain
in effect for the mountains of l.A. And vtu counties including the
santa monica range through Tue afternoon, with wind advisories in
coastal and valley areas. Peak gusts should reach 60 to 65 mph in
the mountains, and 40 to 50 mph in the valleys Tuesday morning
into early Tuesday afternoon.

It was exceedingly dry across the region once again this evening,
with relative humidity values between 3 and 8 percent in many
valley and mountain areas. Humidity recovery will be scant at best
overnight, then relative humidites on Tue should be similar to
those day. Winds should diminish by late Tue afternoon as pressure
gradients weaken. Gradients will probably remain strongly enough
offshore to produce wind advisory level winds at least in the
mountains and many valley areas of l.A. And vtu counties Tue night
and Wed morning, but winds should be considerably weaker just
about everywhere. With gusty winds and very dry conditions
persisting, red flag warnings were extended through late
wed afternoon for all of vtu county, the l.A. County mountains
including the santa monica range, and the san fernando and santa
clarita valleys. They are in effect until late Tue afternoon in
the san gabriel valley and the l.A. County coast from malibu to
the hollywood hills.

***from previous discussion***
even Thursday there's still enough offshore gradient and winds
aloft to generate locally gusty winds at the surface but
definitely below advisory levels by that point.

There will be small warm up the next few days with high pressure
aloft pushing out the remaining cool air from the previous trough.

Overnight temps will continue to be quite chilly in wind protected
locations such as interior slo, the antelope valley, and in and
around ojai.

Long term (fri-mon) 12 157 pm.

Cooling to begin most areas Friday as a trough replaces the ridge
aloft and gradients turn weakly onshore. Much cooler air will move
in as well and drop daytime temps 5-10 degrees by the weekend.

Will likely see some marine layer stratus reforming as early as
Saturday morning but no later than Monday. Winds will be much
lighter during the period.

By Monday afternoon and night models showing an upper low
developing just west of the california coast with some moisture
with it. Very low confidence though as it's bumping into a ridge
of high pressure stretching from the pac NW southeast through az
so expect quite a few variations of this solution the next several
days. For now will just continue the cooling trend but keep the
forecast dry.

Aviation 13 0557z.

At 0530z at klax, there was no marine inversion.

Overall... High confidence in the tafs.VFR conditions will
prevail throughout the forecast period.

Klax... High confidence in the taf.VFR conditions will prevail
throughout the forecast period.

Kbur... High confidence in the taf.VFR conditions will prevail
throughout the forecast period. There is a 30% chance of llws.

Marine 12 824 pm.

For the outer waters... There will be small craft advisory (sca)
level gusts to 25 to 30 knots later tonight through Tuesday in
the southern outer waters. Otherwise and elsewhere, the winds will
remain below SCA levels through Thursday.

For the inner waters north of point conception... Conditions will
remain below SCA levels through Thursday.

For the inner waters south of point conception... There will be
sca level winds tonight and Tuesday, especially near shore south
of rincon point and below passes and canyons. This includes the
waters out to catalina island where there may be hazardous swells
and gusty winds in and around avalon harbor.

Fire weather 12 338 pm.

Moderate to strong santa ana winds combined with single digit humidities
will continue to bring very critical fire weather conditions across much
of los angeles and ventura counties through Tuesday. During this time,
northeast winds gusting between 40 and 60 mph will be common across
wind favored areas. By Tuesday night and Wednesday, the offshore winds
are expected to diminish but will still see gusts in the 25 to 40 mph
range. These expected offshore winds in combination with persistent
single digit humidities has resulted in the extension of the red flag
warning through 5 pm Wednesday for ventura county, the los angeles county
mountains, santa monica mountains, santa clarita valley, and san fernando
valley. Winds are expected to be weaker across the los angeles coast and
san gabriel valley Tuesday night into Wednesday, so red flag warnings will
remain in effect through 5 pm Tuesday for these areas at this
time. Lax-daggett gradient peaked at -6.8 mb this morning, and is
expected to peak above -7 mb on Tuesday morning. A light
offshore wind influence will maintain dry conditions across
interior sections Thursday into Friday, maintaining elevated fire
weather conditions.

Fire weather conditions through santa barbara and san luis obispo
counties will be elevated through this period with plenty of dry air
along with pockets of gusty east winds expected.

If fire ignition occurs, conditions will be favorable for very rapid fire
spread and extreme fire behavior including long range spotting,
especially today into Tuesday.

Lox watches warnings advisories
Ca... Wind advisory in effect until 5 pm pst Tuesday for zones
40-41-44-45-88-547. (see laxnpwlox).

High wind warning in effect until 5 pm pst Tuesday for zones
46-53-54. (see laxnpwlox).

Red flag warning in effect until 5 pm pst Wednesday for zones
240-244>246-253-254-288-547. (see laxrfwlox).

Red flag warning in effect until 5 pm pst Tuesday for zones
241-548. (see laxrfwlox).

Pz... Small craft advisory in effect until 3 pm pst Tuesday for
zones 650-655-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
No significant hazards expected.

Public... Mw db
aviation... Sirard
marine... Sirard
fire... Gomberg
synopsis... B
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 21 mi32 min ESE 1 G 4.1 64°F 65°F1026.8 hPa
PSXC1 34 mi32 min ENE 1.9 G 2.9
PXAC1 34 mi32 min ENE 1.9 G 2.9
BAXC1 34 mi32 min ESE 5.1 G 6
46221 - Santa Monica Bay, CA (028) 34 mi20 min 67°F2 ft
PFXC1 36 mi32 min E 2.9 G 4.1 67°F
PFDC1 36 mi32 min ENE 5.1 G 5.1
PRJC1 37 mi32 min ESE 8.9 G 12
OHBC1 - 9410660 - Los Angeles, CA 37 mi32 min 67°F1026.5 hPa
AGXC1 38 mi32 min E 8 G 9.9 67°F 1026.3 hPa
46256 39 mi20 min 65°F3 ft
46222 - San Pedro, CA (092) 44 mi20 min 66°F2 ft
46253 48 mi20 min 67°F2 ft

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burbank - Bob Hope Airport, CA6 mi27 minN 310.00 miFair52°F19°F28%1025.6 hPa
Los Angeles, Whiteman Airport, CA7 mi3.4 hrsWNW 1010.00 miClear68°F-7°F4%1026.1 hPa
Van Nuys, Van Nuys Airport, CA12 mi29 minN 14 G 2110.00 miFair66°F-2°F6%1025.3 hPa
Los Angeles / USC Campus Downtown, CA17 mi33 minN 010.00 miFair55°F32°F42%1026.2 hPa
El Monte, CA18 mi4.5 hrsN 010.00 miFair61°F24°F25%1025.4 hPa
Santa Monica, Santa Monica Municipal Airport, CA18 mi29 minN 010.00 miFair58°F21°F25%1026.4 hPa
Los Angeles, Los Angeles International Airport, CA23 mi27 minSSE 510.00 miFair66°F10°F11%1026.3 hPa
Hawthorne, Hawthorne Municipal Airport, CA23 mi27 minN 010.00 miFair57°F36°F45%1026.4 hPa

Wind History from BUR (wind in knots)
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Last 24hrNW4CalmN5N4CalmN33CalmCalmCalmSE6SW3SE54S6S9S6S4CalmN4E4N3NE3N3
1 day agoCalmCalmCalmSW3CalmCalmCalmCalmCalmCalmE3SE54S8S74S4SE4CalmN3CalmCalmCalmN4
2 days agoCalmCalmCalmCalmNW4CalmN3CalmCalmCalmS3CalmS3SE4S6SW9S3S4S3CalmCalmCalmE3N4

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Tue -- 02:56 AM PST     3.43 feet High Tide
Tue -- 05:38 AM PST     3.32 feet Low Tide
Tue -- 06:24 AM PST     Sunrise
Tue -- 11:36 AM PST     Moonrise
Tue -- 11:51 AM PST     4.48 feet High Tide
Tue -- 04:51 PM PST     Sunset
Tue -- 08:11 PM PST     0.76 feet Low Tide
Tue -- 10:04 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.83.23.43.43.43.33.33.43.63.94.24.44.54.343.42.721.40.90.80.81.21.7

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Tue -- 02:47 AM PST     3.52 feet High Tide
Tue -- 05:42 AM PST     3.37 feet Low Tide
Tue -- 06:24 AM PST     Sunrise
Tue -- 11:36 AM PST     Moonrise
Tue -- 11:52 AM PST     4.51 feet High Tide
Tue -- 04:51 PM PST     Sunset
Tue -- 08:08 PM PST     0.83 feet Low Tide
Tue -- 10:04 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.93.33.53.53.53.43.43.53.73.94.24.44.54.443.52.82.11.410.80.91.31.8

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 (2,6,7,8)
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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.