Monday, December10, 2018 L-36.com


Marine Weather and Tides
Signal Hill, 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 6:46AMSunset 4:46PM Monday December 10, 2018 6:08 AM PST (14:08 UTC) Moonrise 10:30AMMoonset 8:54PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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- 511 Am Pst Mon Dec 10 2018
Today..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 4 ft at 16 seconds.
Tonight..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 5 ft at 15 seconds, subsiding to 2 to 4 ft at 15 seconds after midnight.
Tue..E winds 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 10 seconds.
Tue night..NW winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 4 ft at 10 seconds.
Wed..NE winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 4 ft at 10 seconds.
Wed night..SW winds 5 to 10 kt, becoming ne after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds.
Thu..N winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
PZZ600 511 Am Pst Mon Dec 10 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 10z...or 2 am pst, a 1030 mb surface high about 750 nm west of point conception will build into oregon this afternoon, then into the nevada through Wednesday. Strengthening northwest flow is expected over the coastal waters with building seas.


7 Day Forecast for Marine Location Near Signal Hill, CA
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location: 33.76, -118.18     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 101212
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
412 am pst Mon dec 10 2018

Synopsis 09 1020 pm.

There will be elevated winds, cooler temperatures, and a slight
chance of precipitation on the north slopes of the ventura and
los angeles county mountains Monday night and Tuesday. Another
slight chance of precipitation will develop across the region next
weekend. Otherwise dry and slightly warmer conditions will prevail.

Short term (tdy-wed) 10 314 am.

Yesterday's ridge will give way to a trof today. Plenty of mid and
high level clouds will keep skies partly to mostly cloudy. There
is 3 mb of offshore flow from both the N and E which will bring
some gusty canyon winds but since there is no upper of thermal
support the winds will not reach advisory criteria. The offshore
flow will allow MAX temps across the coasts and vlys to remain
above normal although the falling hgts will knock a degree or two
off of the temps compared to ydy.

A decent meso sfc high will develop near kbfl setting up stronger
north flow and along with the cooler air spilling in behind the
later afternoon trof passage a low end wind advisory will set up
thru the i-5 corridor and the sba south coast and perhaps the in
the vlys along the la vta border. The north winds will also create
enough orographic lift up the north sides of the mtns near the
kern county line to form clouds and slight chc of showers.

Skies will clear with the dry NW flow on Tuesday. At one point
the trof was supposed to bring much more cool air with it but now
not as much is forecast. The interior will cool some but there
will be little change in temps from Monday across the coasts and
vlys as the compressional heating counteracts the cooler air.

Wednesday is setting up to be a very nice day as a ridge moves
into the area. The higher hgts will combine with sunny skies and
weak offshore flow to bring 2 to 4 degrees of warming to southern
ca. MAX temps will end up 3 to 5 degrees above normal.

Long term (thu-sun) 09 250 pm.

The ec and GFS are in good agreement thru thu, then differences show
up Fri thru sun. Upper level ridging will continue on thu. An upper
level trof moving thru the E pac will approach the ca coast on fri,
with the GFS weaker and ec stronger with this system, altho dry
weather should prevail thru Fri across SW ca.

The ec brings a front and fairly decent rain into the area fri
night and Sat morning while the GFS dissipates the front with dry
weather during the period except for a slight chance of showers
over far NW slo county Fri night. Decided to lean more toward the
gfs for this time frame.

The ec and GFS both agree to some extent on pushing another upper
level trof and surface frontal system into the area on sun, with
the ec faster than the GFS with this system. Also leaned more
toward the GFS with a slight chance to chance of rain moving
mainly into slo sba counties on sun.

There is really low to moderate confidence in the forecast for
the Fri night thru Sun timeframe given all the model differences
in speed and strength of the two weather systems. Additional model
runs will be needed to fine tune the pcpn fcst during the period.

The ec and GFS agree that there will be good offshore gradients
wed night into Thu with the potential for advisory level winds in
the usual offshore wind-prone areas of vtu l.A. Counties. Gusts up
to 35 to 45 mph will be possible.

Temps will be several degrees above normal for many of the coast and
vlys thu, then cool to slightly above normal fri. It looks like
temps will cool to near normal for the most part Sat and sun.

Aviation 10 1157z.

At 12z, there was no marine layer depth at klax.

Moderate-to-high confidence in the current forecast. There is a
chance of lifr conditions at north of point conception through
17z, and again after 08z.

Klax...VFR conditions are expected through at least 10z. Lifr
conditions are possible Tuesday morning. Any east winds are
expected to remain less than 7 knots.

Kbur...VFR conditions are expected throughout the period. No wind
issues are expected at this time.

Marine 10 405 am.

Moderate-to-high confidence in the current forecast. Less
confidence for the inner and nearshore waters, higher confidence
for the outer coastal waters. Northwest flow along with building
seas will develop through this evening. A mix of gusty winds and
hazardous seas is expected for the outer waters, but less of a
chance exists for the nearshore waters north of point sal. There
is a 40 percent chance of small craft advisory conditions
developing across the santa barbara channel between 3 pm today and
3 am tonight, and a 10 percent chance of similar conditions for
the inner waters south of point mugu to san mateo point.

Winds will likely increase some for Tuesday, increasing chances
for a mix of gusty winds and hazardous seas Tuesday afternoon and
evening.

An extended period of hazardous marine conditions is possible
Thursday and into the weekend, especially for the outer coastal
waters. There is an outside chance of a very large swell
affecting the coastal waters over next weekend.

Beaches 10 411 am.

A high surf advisory remains in effect for the beaches along the
central coast and ventura county. Local advisory sets are possible
at west facing beaches along the south coast of santa barbara
county, such as rincon point and county line this afternoon and
tonight.

An extended period of high surf is expected at central coast
beaches for the latter part of the week. Very large and
potentially damaging surf could develop over the weekend and into
early next week with energy possibly pushing into southern
california bight early next week.

Lox watches warnings advisories
Ca... High surf advisory in effect until noon pst Tuesday for zones
34-35. (see laxcfwlox).

High surf advisory in effect from noon today to 6 pm pst
Tuesday for zone 40. (see laxcfwlox).

Pz... Small craft advisory in effect from 9 am this morning to 9 am
pst Tuesday for zones 645-670-673-676. (see laxmwwlox).

Hazard potential outlook (wed-sun)
Gusty advisory level north to northeast winds are expected
Wednesday night into Thursday. High surf and dangerous rip
currents are expected on the central coast Thursday through
Saturday, possibly expanding to most beaches on Saturday.

Public... Rorke sirard
aviation... Hall
marine... Hall
beaches... Hall
synopsis... Kj
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 2 mi39 min N 2.9 G 4.1
PSXC1 2 mi39 min N 2.9 G 2.9
PFXC1 2 mi39 min NNW 1 G 1.9 57°F
BAXC1 3 mi39 min NNW 4.1 G 4.1
46256 4 mi39 min 61°F1 ft
PFDC1 4 mi39 min NW 6 G 6
AGXC1 5 mi39 min N 5.1 G 6 59°F 1018.9 hPa
PXAC1 5 mi39 min NNW 5.1 G 6
OHBC1 - 9410660 - Los Angeles, CA 6 mi39 min 62°F1018.9 hPa
46222 - San Pedro, CA (092) 12 mi39 min 62°F3 ft
46253 13 mi39 min 63°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi39 min NE 6 G 6 60°F 61°F1018.8 hPa
46221 - Santa Monica Bay, CA (028) 25 mi39 min 63°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 46 mi29 min WSW 1.9 G 3.9 62°F 62°F1018.8 hPa60°F

Wind History for Los Angeles Pier S, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA5 mi16 minESE 310.00 miFair53°F46°F80%1018.5 hPa
Los Alamitos Army Airfield, CA7 mi71 minN 010.00 miFair51°F49°F95%1018.9 hPa
Fullerton, Fullerton Municipal Airport, CA13 mi16 minN 010.00 miFair52°F46°F80%1018.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA14 mi16 minN 010.00 miFair58°F43°F58%1018.9 hPa
Los Angeles, Los Angeles International Airport, CA17 mi16 minN 010.00 miMostly Cloudy56°F44°F65%1019 hPa
John Wayne-Orange County Airport, CA17 mi16 minN 09.00 miMostly Cloudy54°F48°F83%1018.9 hPa
Los Angeles / USC Campus Downtown, CA19 mi22 minVar 310.00 miFair58°F43°F58%1018.4 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi18 minN 010.00 miFair59°F44°F58%1019.1 hPa

Wind History from LGB (wind in knots)
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Last 24hrNW5CalmN4NE3CalmE6CalmSW4W7W8NW6NW7NW4N3CalmCalmCalmCalmCalmCalmCalmNW4CalmE3
1 day agoNW3CalmCalmCalmCalmCalmS55S6SW5W6NW5CalmCalmCalmCalmCalmCalmN4CalmNW3NW3CalmNW3
2 days agoNW5CalmE6E7Calm3CalmW4NW5W10W10W6E3CalmCalmCalmNW3CalmNW3CalmCalmCalmCalmCalm

Tide / Current Tables for Long Beach, Outer Harbor, Pier A, California
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Long Beach
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Mon -- 03:58 AM PST     2.52 feet Low Tide
Mon -- 06:46 AM PST     Sunrise
Mon -- 09:30 AM PST     Moonrise
Mon -- 10:04 AM PST     5.35 feet High Tide
Mon -- 04:44 PM PST     Sunset
Mon -- 05:38 PM PST     -0.11 feet Low Tide
Mon -- 07:54 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.332.62.52.73.23.84.55.15.45.24.53.62.51.40.5-0-0.10.311.82.63.1

Tide / Current Tables for Los Angeles, California
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Los Angeles
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Mon -- 03:50 AM PST     2.63 feet Low Tide
Mon -- 06:47 AM PST     Sunrise
Mon -- 09:30 AM PST     Moonrise
Mon -- 10:01 AM PST     5.57 feet High Tide
Mon -- 04:44 PM PST     Sunset
Mon -- 05:30 PM PST     -0.12 feet Low Tide
Mon -- 07:54 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.73.432.72.62.83.34.14.85.45.65.44.73.72.51.30.4-0.1-0.10.41.122.73.3

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 (9,2,3,4)
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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.