Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Signal Hill, 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 6:46AMSunset 7:10PM Saturday March 25, 2017 4:39 AM PDT (11:39 UTC) Moonrise 5:23AMMoonset 4:51PM Illumination 5% Phase: Waning Crescent; Moon at 27 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- 249 Am Pdt Sat Mar 25 2017
Today..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 3 to 4 ft at 9 seconds.
Tonight..W winds 15 to 20 kt...becoming E 5 to 10 kt after midnight. Wind waves 2 to 3 ft. W swell 5 to 6 ft at 6 seconds.
Sun..E winds 5 to 10 kt...becoming sw in the afternoon. Wind waves 2 ft or less. W swell 4 to 5 ft at 8 seconds.
Sun night..Western portion...nw winds 15 to 20 kt becoming 10 to 15 kt after midnight. Elsewhere...w winds 5 to 10 kt becoming variable 10 kt or less after midnight. Wind waves 2 to 4 ft. W swell 4 to 5 ft at 6 seconds.
Mon..Western portion...nw winds 15 to 20 kt. Elsewhere...winds variable 10 kt or less becoming W 10 to 15 kt in the afternoon. Wind waves 2 to 4 ft. W swell 4 to 5 ft at 8 seconds.
Mon night..Western portion...nw winds 20 to 25 kt becoming 10 to 15 kt after midnight. Elsewhere...nw winds 10 to 15 kt becoming N 15 to 25 kt after midnight. Combined seas 7 to 9 ft dominant period 8 seconds.
Tue..NW winds 15 to 20 kt with gusts to 25 kt....Except ne 15 to 20 mph below passes and canyons between pt. Mugu and malibu. Combined seas 5 to 7 ft.
Wed..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
PZZ600 249 Am Pdt Sat Mar 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 pst...a 1027 mb high was 800 nm W of point conception. This high will move N through the weekend, then strengthen and push inland over N california Mon into Tue, with widespread gale force winds possible through Wed. A short period swell will impact the coastal waters through early next week.

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 251004
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
304 am pdt Sat mar 25 2017

Synopsis
There will be a few lingering showers mostly across the mountains
today with below normal temperatures. It will be mostly sunny
Sunday with a few degrees of warming. On Monday a weak trof will
result in clouds a few light showers over slo and santa barbara
counties. Gusty northerly winds will set up Monday night and
persist into Tuesday. Weak ridging aloft and northerly winds at
the surface will bring warm and dry conditions for the middle of
next week.

Short term (tdy-mon)
a weak cold front is moving through the area. It is actually a
little ahead of schedule and by dawn the showers will mostly be
confined to the mtns save for just a slight chc over la county.

Skies away from the mtns might start off mostly cloudy but will
turn partly cloudy fairly quickly if they have not already. The
mtns will be mostly cloudy and a threat of showers will persist on
the north slopes. Rainfall amounts will be under a tenth of an
inch and more than likely just a couple of hundredths. Snow
levels will be near 6500 feet but there will not be much if any
snow accumulations. MAX temps across the coasts and vlys will be
in the 60s or about 4 to 8 degrees blo normal.

A little pop up ridge will make Sunday a rather pleasant day.

Skies will be partly cloudy at worst and MAX temps will be up a
couple of degrees and the csts and vlys will have MAX temps in the
mid 60s to the lower 70s which is still a few degrees blo normal.

The inside slider that was forecast for Monday is now forecast to
be further west. Far enough west to bring a weak trof overhead
through the area. It is still weak and still pretty dry. It will
bring a chc of rain to slo and sba counties but only a chc of rain
over the mtns of la and vta counties. The clouds and the lower
hgts will contribute a few degrees of cooling.

Long term (tue-fri)
the biggest weather news for the next 7 days will occur Monday
night and Tuesday. Good north flow both sfc and aloft along with
cool air advection will set up behind Monday's weak trof. Strong
and gusty north winds will develop through and below the northerly
oriented passes and canyons. The i-5 corridor and the sba south
coast will see the strongest winds. The wind speeds will be
strong advisory levels for sure and possibly warning levels. The
winds will turn to the NE during the day on Tuesday. Otherwise a
building ridge will provide clear skies and will combine with the
offshore flow to bring a 6 to 12 degree bump up in temps. There
may be a few 80 degree readings in the vlys.

The ridge peaks on Wednesday and with continued albeit weaker offshore
flow Wednesday will be the warmest day of the next 7 with all of
the vlys in the 80s and most of the coasts in the mid to upper
70s. MAX temps will be 6 to 12 degrees above normal.

Big mdl differences for Thursday with the GFS continuing the
ridging and warm temps. The ec on the other hand has cooler nw
flow. GFS has been the more consistent of the mdls and favored the
warmer solution in the forecast.

Both mdls show an inside slider for Friday which will bring cooler
temps and will set up another offshore wind event.

Aviation
25/0600z
at 0530z, there was no discernible inversion near klax this
evening. A deep moist layer will develop ahead of weakening
frontal boundary overnight.

Low confidence with 06z tafs. A weakening cold front will bring a
mix ofVFR to MVFR CIGS and some light showers across much of the
forecast area tonight. Timing of precip could be off +/- 1 hour.

90 percent chance of -ra at kprb ksbp ksmx... 60 percent chance at
ksba... And 30 percent chance elsewhere. MVFR CIGS are likely over
most places with the timing of the front... With a 50 percent
chance of brief ifr cats at kprb ksbp. 30 percent chance of MVFR
cigs forming as early as 08z ahead the front anywhere over los
angeles and ventura counties. Widespread gusty west to northwest
winds are likely Saturday afternoon with mostly cig-free skies.

Klax... Moderate confidence inVFR conditions through 10z. 30
percent chance of MVFR CIGS 07-12z... 60 percent chance 12-18z and
a 30 percent chance of -ra. No significant east winds expected
over next 24-hour period. Gusty west winds likely Saturday
afternoon.

Kbur... Moderate confidence inVFR conditions through 08z. 20
percent chance of MVFR CIGS 06-12z... 60 percent chance 12-18z and
a 30 percent chance of -ra.

Marine
25/230 am
outer waters... High confidence with SCA level winds increasing
later this afternoon. Have issued SCA for the outer waters through
Sunday afternoon. 60% confidence that gale force winds could occur
by Sunday later afternoon through early Monday morning from pt.

Conception... Through the channel islands and south towards san
nicolas island. A gale watch has been issued for the two lower
outer water zones Sunday late afternoon through Monday morning.

There is a high probability that strong SCA level wind gusts will
continue across much of the outer waters through Monday night with
more potential for gale force wind gusts across the entire outer
waters Monday morning through at least Tuesday morning.

Inner waters... (from point sal to point piedras blancas) strongest
winds should stay across the outer waters, but 40% chance that sca
level wind gusts could develop late this afternoon through this
evening. A better chance for SCA level wind gusts will occur on
Monday morning through Tuesday morning. For the inner waters S of
point conception... There will be some gusty NW to N winds across
the western portion of the sba channel by Sunday morning. By
Monday evening there will be gusty northerly winds across the
entire inner waters. Gusty northerly winds across the santa monica
bay likely Monday evening. Offshore winds across the usual wind
prone areas from ventura to santa monica then once again across
the san pedro channel will develop by Tue morning. 50% chance for
sca level gusts.

Lox watches/warnings/advisories
Ca... None.

Pz... Small craft advisory in effect from 3 pm this afternoon to 9
pm pdt this evening for zone 650. (see laxmwwlox).

Small craft advisory in effect from 3 pm this afternoon to 3
pm pdt Sunday for zones 670-673-676. (see laxmwwlox).

Gale watch in effect from Sunday afternoon through late
Sunday night for zones 673-676. (see laxmwwlox).

Hazard potential outlook (mon-fri)
a weak weather system will bring some showers and mountain snow
showers to slo county and the north mountain slopes on Monday.

Gusty northwest to northeast winds will affect the area at times
Monday through Friday. The winds should cause some travel issues
at times during the period. Winds may be strong enough in some
areas for small trees or tree branches to be knocked down.

Public... Rorke
aviation... Kaplan
marine... Kaplan
synopsis... Rorke
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 2 mi52 min W 13 G 14
PSXC1 2 mi52 min SW 5.1 G 6
PFXC1 2 mi52 min WSW 8 G 11 58°F 1019.4 hPa
BAXC1 3 mi52 min SSW 1.9 G 1.9
46256 4 mi48 min 59°F3 ft
PFDC1 4 mi58 min SW 9.9 G 14
AGXC1 5 mi52 min SW 8 G 11 58°F 1020.1 hPa
PXAC1 5 mi58 min WNW 2.9 G 2.9
OHBC1 - 9410660 - Los Angeles, CA 6 mi52 min 60°F1020.1 hPa
46222 - San Pedro, CA (092) 12 mi51 min 60°F3 ft
46253 13 mi40 min 60°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi58 min NW 2.9 G 5.1 57°F 60°F1020.3 hPa
46221 - Santa Monica Bay, CA (028) 25 mi40 min 59°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 46 mi40 min W 12 G 14 58°F 59°F1019.5 hPa (-1.0)56°F

Wind History for Los Angeles Pier S, CA
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NW12
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA5 mi47 minW 410.00 miPartly Cloudy58°F50°F75%1019.9 hPa
Los Alamitos U. S. Army Airfield, CA7 mi42 minSW 510.00 miPartly Cloudy55°F51°F88%1020.3 hPa
Fullerton, Fullerton Municipal Airport, CA13 mi47 minN 010.00 miPartly Cloudy57°F51°F81%1019.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA14 mi47 minWSW 610.00 miA Few Clouds57°F53°F87%1020 hPa
Los Angeles, Los Angeles International Airport, CA17 mi47 minW 910.00 miPartly Cloudy56°F53°F90%1019.8 hPa
Santa Ana, John Wayne Airport-Orange County Airport, CA17 mi47 minSW 310.00 miFair57°F53°F87%1019.8 hPa
Los Angeles / USC Campus Downtown, CA19 mi53 minN 010.00 miFair57°F51°F81%1019.6 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi49 minW 310.00 miA Few Clouds56°F48°F77%1020 hPa

Wind History from LGB (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmN433S8S9SW9W13W9NW7W9NW9W8W7W6CalmW4CalmS4W4
1 day agoW8W12W10NW8NW14NW15NW8
G18
W6--NW10NW8W7W11NW11W5NW6SW3CalmCalmCalmCalmCalmCalmCalm
2 days agoS3S3SE3S4NW6W8W9W11W13W14
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W12NW5NW5NW3NW4

Tide / Current Tables for Long Beach, Outer Harbor, Pier A, California
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Long Beach
Click for Map
Sat -- 02:18 AM PDT     1.20 feet Low Tide
Sat -- 05:23 AM PDT     Moonrise
Sat -- 06:49 AM PDT     Sunrise
Sat -- 08:13 AM PDT     5.06 feet High Tide
Sat -- 02:53 PM PDT     -0.35 feet Low Tide
Sat -- 04:51 PM PDT     Moonset
Sat -- 07:08 PM PDT     Sunset
Sat -- 09:05 PM PDT     4.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.61.21.31.92.83.84.654.94.23.11.80.7-0.1-0.400.92.13.34.14.54.33.6

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Sat -- 02:10 AM PDT     1.25 feet Low Tide
Sat -- 05:23 AM PDT     Moonrise
Sat -- 06:49 AM PDT     Sunrise
Sat -- 08:10 AM PDT     5.27 feet High Tide
Sat -- 02:45 PM PDT     -0.37 feet Low Tide
Sat -- 04:51 PM PDT     Moonset
Sat -- 07:08 PM PDT     Sunset
Sat -- 09:02 PM PDT     4.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.61.31.42.1344.95.35.14.33.11.80.6-0.2-0.40.11.12.33.54.44.74.43.6

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 (7,2,3,4)
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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.