Friday, May26, 2017 L-36.com


Marine Weather and Tides
Signal Hill, CA

Version 3.4
What's New / NOTES
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 5:43AMSunset 7:56PM Friday May 26, 2017 5:26 PM PDT (00:26 UTC) Moonrise 6:48AMMoonset 9:06PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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- 200 Pm Pdt Fri May 26 2017
Tonight..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. SW swell 1 to 2 ft at 14 seconds.
Sat..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. SW swell 1 to 2 ft at 14 seconds.
Sat night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 7 seconds.
Sun..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 1 to 2 ft at 6 seconds.
Sun night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 6 seconds. Patchy fog after midnight.
Mon..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and sw 2 ft at 17 seconds. Patchy fog in the morning.
Mon night..W winds 10 to 15 kt...becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and sw 2 ft at 16 seconds. Patchy fog after midnight.
Tue..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and sw 2 ft. Patchy fog.
Wed..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft. Patchy fog.
PZZ600 200 Pm Pdt Fri May 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park.. At 15z...or 8 am pdt...a 1003 mb low was over southern nevada while a 1027 mb high was centered 700 nm west of seattle. This pattern will change little through Friday, then a 1022 mb high will form 450 nm west of point conception over the weekend as a 1009 mb thermal low settles over southwest arizona.

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 262038
afdlox
area forecast discussion
national weather service los angeles oxnard ca
138 pm pdt Fri may 26 2017

Synopsis
Night through morning low clouds are expected through the period.

An upper ridge will bring warmer temperatures to the area through
Monday. Another low pressure will move into southern cal by mid
week bringing some cooler temperatures through the end of the
week.

Short term (tdy-mon)
5000-6000' "marine" lyr is keeping skies pretty cloudy so far this
afternoon with some clearing over the coastal waters and the far
interior areas. Not really expecting the trough axis to pass
through the area until late Saturday, so while heights will rise
slightly tomorrow and onshore gradients will be weakening we'll
still have a deep marine lyr to start the weekend. We should see
1000-2000 feet of lowering tonight and clearing Saturday is
expected to be pretty complete and much earlier, likely before
noon in most areas. Temps will be warmer but still below normal.

Warming trend to really kick into gear Sunday Monday as high
pressure develops over the west coast and onshore flow continues
to weaken. Likely about 10 degrees of warming for inland areas
Sunday and another 3-5 Monday. Low clouds will continue along the
coast and pushing into the lower valleys each morning.

Long term (tue-fri)
models now in pretty good agreement showing a trough developing
along the west coast Tuesday, though differ on how deep it will
develop through the end of the week. The GFS is quite a bit deeper
than the ECMWF and gem but consistent with what we saw this week.

Regardless a cooling trend will now begin Tuesday and continue
through Thursday, though the extent of the cooling still remains
to be seen. We should be turning the corner by the very end of the
week as the trough or semi-closed upper low moves east and is
replaced by another ridge. Marine lyr will remain a constant for
the coast during the night and morning hours at least and
for the valleys through mid-morning each day. Overall a pretty
quiet week of weather.

Aviation 26 1800z.

At 18z, the marine inversion at klax was around 4800 feet deep.

The top of the inversion was 7400 feet with a temperature of 13
degrees celsius.

Moderate confidence that most sites with a cig now will have one
for the rest of the day, though there is a chance that for a few
hours without (70 percent chance at ksba... 50 percent chance at
klax ksmo klgb... 30 percent chance at koxr kcma). Any cig should
stay above 030 through this afternoon, except for a chance of a
random and brief bkn025. Marine layer and cig heights will
decrease some tonight... By 500-1000 feet. Low confidence in ksmx
ksbp kprb CIGS after 00z due to possibility of marine layer re-
establishing itself very low.

Klax... 50 percent chance of a few hours of cig-free conditions
20-04z, but low confidence on timing and if a breakup even occurs.

Lower cig likely tonight, and could occasionally dip below 020
10-16z. Confident in light winds.

Kbur... High confidence in cig conditions into Saturday. Lower cig
likely tonight, and could occasionally dip below 020 10-16z.

Marine 26 100 pm.

Confident in below normal wind speeds and seas through tonight.

70 percent chance of low-end small craft advisory (sca) conditions
from the central coast to san nicolas island (outer waters) late
Saturday afternoon and night, and a 100% chance on Sunday and
Monday with gusts to 30 kt. Some of the winds will spill into the
western half of the santa barbara channel, but likely not enough
to warrant a SCA for the whole channel. These winds will create a
short period chop over all waters including the santa barbara
channel and santa monica basin (inner waters).

Lox watches warnings advisories
Ca... Wind advisory in effect until 9 pm pdt this evening for zone
59. (see laxnpwlox).

Pz... None.

Hazard potential outlook (mon-fri)
no significant hazards expected.

Public... Mw
aviation... Kittell
marine... Kittell
synopsis... B
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 2 mi38 min WSW 14 G 15
PSXC1 2 mi38 min SSW 8 G 11
PFXC1 2 mi38 min WSW 8.9 G 11 69°F
BAXC1 3 mi38 min SW 6 G 8
46256 4 mi34 min 60°F2 ft
PFDC1 4 mi38 min SSW 8 G 9.9
AGXC1 5 mi38 min WSW 13 G 14 64°F 1015.3 hPa
PXAC1 5 mi38 min SSW 7 G 9.9
OHBC1 - 9410660 - Los Angeles, CA 6 mi38 min 59°F1015.1 hPa
46222 - San Pedro, CA (092) 12 mi37 min 64°F2 ft
46253 13 mi26 min 64°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi38 min WSW 12 G 12
46221 - Santa Monica Bay, CA (028) 25 mi26 min 62°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 46 mi26 min W 7.8 G 9.7 62°F 63°F1015.4 hPa (-0.8)53°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 mi33 minWNW 710.00 miMostly Cloudy68°F48°F49%1014.7 hPa
Los Alamitos U. S. Army Airfield, CA7 mi28 minSW 910.00 miA Few Clouds69°F51°F54%1015.2 hPa
Torrance, Zamperini Field Airport, CA8 mi32 minWNW 1510.00 miPartly Cloudy66°F53°F64%1014.9 hPa
Fullerton, Fullerton Municipal Airport, CA13 mi33 minS 610.00 miMostly Cloudy70°F50°F49%1014.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA14 mi33 minWSW 1210.00 miFair67°F52°F59%1015.1 hPa
Los Angeles, Los Angeles International Airport, CA17 mi33 minW 1310.00 miPartly Cloudy66°F54°F65%1015.1 hPa
Santa Ana, John Wayne Airport-Orange County Airport, CA17 mi33 minVar 610.00 miMostly Cloudy69°F53°F57%1014.8 hPa
Los Angeles / USC Campus Downtown, CA19 mi39 minVar 410.00 miOvercast69°F52°F55%1014.5 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi35 minSW 810.00 miFair66°F54°F65%1015 hPa
El Monte, CA24 mi35 minSW 710.00 miMostly Cloudy72°F50°F47%1015.2 hPa

Wind History from LGB (wind in knots)
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Last 24hrSW10S8SW6SW5W5NW4NW4N4S5S5SE4SE3S3S4SE75W6S6S9S9SW10S8S6W7
1 day agoNW8W11W8NW7NW7W3NW4W3S5S6S3SW3S3CalmS4SW5S3CalmS6SE7SW8
G15
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2 days agoNW12NW10NW7NW8W7NW4NW3NW3W3NW4NW5E3CalmS4SW6Calm4S8S8S7SW6S9S7S6

Tide / Current Tables for Long Beach, Outer Harbor, Pier A, California
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Long Beach
Click for Map
Fri -- 04:44 AM PDT     -1.50 feet Low Tide
Fri -- 05:45 AM PDT     Sunrise
Fri -- 06:48 AM PDT     Moonrise
Fri -- 11:04 AM PDT     4.12 feet High Tide
Fri -- 04:11 PM PDT     1.40 feet Low Tide
Fri -- 07:54 PM PDT     Sunset
Fri -- 09:05 PM PDT     Moonset
Fri -- 10:20 PM PDT     6.42 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.52.81.1-0.4-1.3-1.5-0.90.21.62.93.84.13.93.32.41.71.41.62.33.54.75.86.46.3

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Fri -- 04:36 AM PDT     -1.56 feet Low Tide
Fri -- 05:45 AM PDT     Sunrise
Fri -- 06:49 AM PDT     Moonrise
Fri -- 11:01 AM PDT     4.29 feet High Tide
Fri -- 04:03 PM PDT     1.46 feet Low Tide
Fri -- 07:55 PM PDT     Sunset
Fri -- 09:05 PM PDT     Moonset
Fri -- 10:17 PM PDT     6.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.52.70.9-0.6-1.4-1.5-0.80.41.83.144.343.32.51.81.51.72.53.756.16.76.5

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 (20,4,5,8)
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Ground Weather Radar Station Santa Ana Mtns, 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.