Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Lomita, 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 6:39AMSunset 7:13PM Thursday March 30, 2017 5:34 PM PDT (00:34 UTC) Moonrise 8:44AMMoonset 10:22PM Illumination 13% 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- 157 Pm Pdt Thu Mar 30 2017
.small craft advisory in effect through late Friday night...
Tonight..NW winds 25 to 30 kt becoming 15 to 25 kt after midnight. Strongest western portion. Combined seas 5 to 7 ft dominant period 11 seconds.
Fri..NW winds 10 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft dominant period 11 seconds...subsiding to 4 to 6 ft dominant period 12 seconds in the afternoon.
Fri night..NW winds 15 to 25 kt becoming variable 10 kt or less. Combined seas 6 to 8 ft dominant period 12 seconds...subsiding to 4 to 5 ft dominant period 12 seconds after midnight.
Sat..N winds 5 to 10 kt...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 12 seconds...subsiding to 2 to 3 ft at 12 seconds in the afternoon.
Sat night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 12 seconds and S 2 ft at 15 seconds.
Sun..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 13 seconds and S 2 ft at 15 seconds.
Sun night..SW winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 5 ft at 17 seconds.
Mon..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 6 ft.
Tue..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
PZZ600 157 Pm Pdt Thu Mar 30 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 2 pm pst...a 1033 mb high pressure center was located 650 nm northwest of point conception. Winds will be elevated through early Saturday. Short period seas will dominate the waters.

7 Day Forecast for Marine Location Near Lomita, CA
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location: 33.77, -118.25     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 310006 aaa
afdlox
area forecast discussion... Updated
national weather service los angeles/oxnard ca
506 pm pdt Thu mar 30 2017

Update for new aviation discussion...

Synopsis
An upper level trough will continue move through the great basin
through early Friday bringing widespread strong to locally
damaging northerly winds to the area. High pressure and weak
offshore flow will bring warmer weather to the region this
weekend. A fast moving trough passing north of the area will
support a brief drop in temperatures early next week.

Short term (tdy-sun)
northerly winds slowly starting to develop this afternoon, maybe
just a few hours delayed from what was expected. Still expecting
winds to peak this evening into very early Friday morning (pre-
dawn hours) before weakening through mid morning to below advisory
levels. Strongest in the i5 corridor where gusts up to around 80
mph are possible. Winds expected to filter down into the la basin
during the evening and overnight with gusts to around 45 mph,
strongest in the hollywood hills and down into west la. Sb south
coast already seeing some gusty winds this afternoon and those too
will peak in the early evening but remain gusty most of the night
into Friday morning.

After winds subside Friday morning they are expected to remain
well below advisory levels through Saturday morning, with the
possible exception of sb south coast which again could flirt with
some low end advisory level winds Friday evening.

Highs Friday expected to cool a couple more degrees as colder air
behind the trough passage moves in.

By Saturday with ridging starting to develop and gradients turning
offshore temps are expected to jump several degrees back up in the
80s for the valleys and 70s to around 80 for interior coastal
zones. The models today backed off a little on the strength of the
offshore flow and support aloft so right now it looks like any
santa ana winds should remain below advisory levels.

Sunday should be almost a carbon copy of Saturday, though
increasing onshore flow will likely lead to some cooling at the
coast.

Long term (mon-thu)
models seem to be in agreement today showing the Monday trough to
be weak and scoot rapidly into the rockies rather than diving
south and bringing another round of gusty north winds with it.

This could change but it seems more of the solutions lately have
favored this weaker and more progressive scenario. Probably some
cooling Monday with moderate onshore flow and a cooler air mass
overall, but then turning warmer tue-thu and very weak offshore
flow combines with a strengthening ridge aloft. Highs in the lower
90s possible for the valleys both days and 80s for interior
coastal plain.

Aviation 31/0000z
at 2255z, the inversion at klax was 2300 ft deep. The top of the
inversion was at 3200 ft with a temperature of 13 deg c.

Generally hi confidence in the 00z tafs.VFR conditions are expected
at all the airfields thru fri, except there should be a period of
ifr vsbys at kpmd thru about 03z this evening due to blowing dust.

Gusty W to NW winds will prevail thru this evening and again fri
afternoon at most of the coastal airfields. Gusty N winds will
affect kbur tonight with some low level wind shear possible, and
kvny thru fri. Very strong winds will affect kpmd and kwjf thru
tonight, with gusts up to 45 kt expected, contributing to the
reduced vsbys in blowing dust at kpmd. There is also a 20 percent
chance of ifr vsbys at kwjf in blowing dust this evening.

Klax... Generally hi confidence in the 00z TAF withVFR conditions
expected thru Fri evening. Gusty N winds will affect the airfield
from about 03z to 11z, with gusts up to 32 kt, altho there is the
potential for higher gusts. The winds may not last thru 11z, or be
gusty at times thru the period.

Kbur... Hi confidence in the 00z TAF withVFR conditions expected
thru Fri afternoon. Gusty N winds can be expected this evening, with
low level wind shear possible thru late tonight.

Marine 30/230 pm
gale level winds will develop this afternoon across the outer
waters and along the central coast as small craft advisory level
winds develop in the inner waters south of point conception.

Winds will begin to diminish late Friday but will remain elevated
through Saturday morning.

The strongest winds will be in the western portions of all zones.

Lox watches/warnings/advisories
Ca... High surf advisory in effect until 10 am pdt Saturday for
zones 34-35. (see laxcfwlox).

Wind advisory in effect until 9 pm pdt this evening for zones
34>36-40. (see laxnpwlox).

High wind warning in effect until 8 am pdt Friday for zones
39-46-52>54. (see laxnpwlox).

Beach hazards statement in effect through Friday afternoon
for zones 40-41-87. (see laxcfwlox).

Wind advisory in effect until 8 am pdt Friday for zones
41-44-45-87-547. (see laxnpwlox).

Wind advisory in effect until 6 pm pdt this evening for zone
46. (see laxnpwlox).

High wind warning in effect until 3 am pdt Friday for zones
59-88. (see laxnpwlox).

Pz... Small craft advisory in effect until 6 pm pdt this evening
for zone 645. (see laxmwwlox).

Gale warning in effect until 3 am pdt Friday for zone 645.

(see laxmwwlox).

Small craft advisory in effect until 3 am pdt Saturday for
zones 650-655. (see laxmwwlox).

Gale warning in effect until 3 am pdt Saturday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (sun-thu)
no significant hazards expected.

Public... Mw
aviation... Sirard
marine... Kj
synopsis... Munroe
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PXAC1 1 mi46 min WNW 8.9 G 13
PSXC1 1 mi46 min WNW 9.9 G 15
BAXC1 1 mi46 min W 14 G 18
PFDC1 2 mi46 min SSW 13 G 15
PFXC1 2 mi46 min WSW 11 G 13 66°F 1007.4 hPa
PRJC1 4 mi46 min WSW 17 G 18
OHBC1 - 9410660 - Los Angeles, CA 4 mi46 min 59°F1008.9 hPa
AGXC1 4 mi46 min WSW 14 G 19 62°F 1008.9 hPa
46256 5 mi42 min 60°F4 ft
46222 - San Pedro, CA (092) 11 mi45 min 60°F5 ft
46253 14 mi34 min 60°F4 ft
46221 - Santa Monica Bay, CA (028) 21 mi64 min 60°F6 ft
ICAC1 - 9410840 - Santa Monica Pier 21 mi46 min W 15 G 18 1008.5 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 43 mi34 min W 21 G 27 60°F 60°F1008.8 hPa (-3.0)52°F

Wind History for Los Angeles Pier S, CA
(wind in knots)    EDIT      (on/off)   Help
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W8
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W7
G11
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W19
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G25
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E6
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G13
W7
G11

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA5 mi1.7 hrsW 910.00 miA Few Clouds68°F50°F53%1009.8 hPa
Long Beach, Long Beach Airport, CA7 mi41 minWSW 10 G 1510.00 miFair69°F51°F53%1008.1 hPa
Los Alamitos U. S. Army Airfield, CA11 mi96 minS 1210.00 miA Few Clouds65°F57°F75%1009.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA12 mi41 minW 15 G 2410.00 miFair65°F52°F63%1008.2 hPa
Los Angeles, Los Angeles International Airport, CA14 mi41 minWSW 26 G 328.00 miA Few Clouds and Windy64°F52°F65%1008.4 hPa
Fullerton, Fullerton Municipal Airport, CA16 mi41 minS 10 G 2010.00 miFair66°F55°F70%1007.9 hPa
Los Angeles / USC Campus Downtown, CA17 mi47 minW 69.00 miFair66°F52°F61%1008.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA21 mi43 minW 78.00 miFair64°F54°F70%1008.2 hPa
Santa Ana, John Wayne Airport-Orange County Airport, CA21 mi41 minSSW 12 G 2110.00 miMostly Cloudy63°F55°F76%1009.1 hPa

Wind History from TOA (wind in knots)
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Last 24hrW18------------------------------------------W9W9
1 day agoW12W9NW7W7--------------------W4CalmCalmCalmCalmNW4NW9--NW12W14
2 days agoW18
G25
W14
G22
W14
G23
W18--------------------S5CalmNW433355SW6W8

Tide / Current Tables for Los Angeles Harbor, Mormon Island, California
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Los Angeles Harbor
Click for Map
Thu -- 05:42 AM PDT     -0.36 feet Low Tide
Thu -- 06:42 AM PDT     Sunrise
Thu -- 08:44 AM PDT     Moonrise
Thu -- 11:56 AM PDT     4.35 feet High Tide
Thu -- 05:34 PM PDT     0.87 feet Low Tide
Thu -- 07:12 PM PDT     Sunset
Thu -- 10:22 PM PDT     Moonset
Thu -- 11:51 PM PDT     5.47 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.34.53.21.80.6-0.2-0.30.11.12.33.44.14.443.32.41.510.91.42.33.54.55.3

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Thu -- 05:45 AM PDT     -0.38 feet Low Tide
Thu -- 06:43 AM PDT     Sunrise
Thu -- 08:44 AM PDT     Moonrise
Thu -- 11:57 AM PDT     4.26 feet High Tide
Thu -- 05:37 PM PDT     0.79 feet Low Tide
Thu -- 07:13 PM PDT     Sunset
Thu -- 10:23 PM PDT     Moonset
Thu -- 11:54 PM PDT     5.42 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.34.53.21.80.6-0.2-0.40.112.23.344.343.32.31.50.90.81.32.23.34.45.2

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.