Thursday, June21, 2018 L-36.com


Marine Weather and Tides
El Segundo, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:41AMSunset 8:09PM Thursday June 21, 2018 12:59 AM PDT (07:59 UTC) Moonrise 2:16PMMoonset 1:44AM Illumination 54% Phase: First Quarter Moon; Moon at 8 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
    EDIT      (on/off)   Help
PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 804 Pm Pdt Wed Jun 20 2018
Tonight..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 8 seconds. Patchy fog.
Thu..S winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds. Patchy fog in the morning.
Thu night..W winds 10 to 15 kt in the evening, becoming S 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds. Patchy fog.
Fri..Winds S 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 12 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
Fri night..W winds 10 to 15 kt, becoming S 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds. Patchy fog.
Sat..S winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 8 seconds. S swell 2 ft. Patchy fog in the morning.
Sat night..SW winds 10 to 15 kt, becoming S 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 ft at 17 seconds. Patchy fog after midnight.
Sun..S winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft. Patchy fog.
Mon..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
PZZ600 804 Pm Pdt Wed Jun 20 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 02z...or 7 pm pdt...a 1024 mb high was located about 600 nm west of point conception. A 1005 mb thermal low was centered near needles. This pattern is expected to change little through Fri.

7 Day Forecast for Marine Location Near El Segundo, CA
   Hourly   EDIT   Help
location: 33.91, -118.43     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 210417
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
917 pm pdt Wed jun 20 2018

Synopsis 20 916 pm.

An upper-level high pressure system over the region will persist
into early next week for temperatures above normal and fair skies.

Night through morning low clouds and fog with a shallow marine
layer will moderate conditions along the coast. A slight cooling
trend will occur as onshore flow increases and the marine layer
expands early next week.

Short term (tnt-sat) 20 914 pm.

An upper-level ridge of high pressure remains centered over the
sonoran desert along the arizona-mexico border, while an upper-
level trough of low pressure tracks over the state of oregon
tonight. With the trough brushing the area to the north, onshore
flow is increasing tonight and a slightly deeper marine layer
should be in play for Thursday morning. A slight cooling should
develop Thursday, but it will hardly be noticeable as 950 mb
temperatures only cool by about a half of a degree. About a degree
or two of cooling is expected across the area. Little change is
expected near the coast where the marine layer stratus has been
persistent in hugging the coastline.

*** from previous discussion ***
heights rebound a bit Friday and gradients trend slightly
offshore so any loss in highs Thu should be regained and maybe
more Friday which should be our warmest day this week for most
areas.

Marine layer will be a constant for coastal areas and some lower
coastal valleys next several days with some clouds lingering at
some beaches through the afternoon, much like they did today.

Another trough will move into the great basin Saturday and lead to
an increase in onshore flow. Height thicknesses only drop but just
the stronger onshore flow alone should bring a few degrees of
cooling to most areas.

Long term (sun-wed) 20 142 pm.

Ridging persists into early next week but a strong onshore trend,
both south north and west east will push the cooler maritime air
well inland starting Sunday and last through the middle of next
week. As a result highs will fall back down to normal levels
Sunday Monday with minimal changes through Wednesday. Low clouds
will push farther into the valleys but clear to the coast by mid
to late morning.

Aviation 21 0003z.

At 23z, the marine layer depth was around 1400 feet deep at klax.

The top of the inversion was around 2950 feet with a temperature
near 29 degrees celsius.

Moderate confidence in the current forecast. Lifr to ifr
conditions will likely develop at most coastal terminals through
10z. There is a chance of lifr conditions at valley terminals
between 10z and 16z. Conditions should improve one category
between 15z and 16z. There is a chance of ifr to MVFR conditions
lingering into Wednesday afternoon, highest at ventura county
coastal terminals.

Klax... MVFR conditions could spread in as soon as 01z or as late
as 03z. There is a 50 percent chance of lifr conditions between
06z and 16z.VFR conditions could develop as soon as 17z or as
late as 21z Thursday. Southeast to south winds should remain below
10 knots.

Kbur... There is a 30 percent chance of lifr conditions between
10z and 16z.

Marine 20 740 pm.

For the outer waters, high confidence in the forecast, with sca
conds thru late Fri night or Sat morning, then winds will diminish.

Winds may drop below SCA levels briefly at times, but in general,
expect SCA level winds to prevail with steep short period seas.

For the inner waters, north of point sal, good confidence in sca
level winds mainly during the afternoon evening hours thru fri.

For the inner waters south of point conception, winds and seas
are expected to remain below SCA levels thru sun. However, there
is a 30% chance of SCA level winds across the western half of the
santa barbara channel each afternoon evening thru fri.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 9 pm pdt Thursday for
zone 645. (see laxmwwlox).

Small craft advisory in effect until 9 am pdt Saturday for
zones 670-673. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Saturday for
zone 676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
No significant hazards expected.

Public... Hall mw
aviation... Hall
marine... Sweet sirard
synopsis... Stu hall
weather.Gov losangeles


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 8 mi41 min ESE 1.9 G 6 64°F 67°F1014.1 hPa
46221 - Santa Monica Bay, CA (028) 11 mi59 min 66°F3 ft
PSXC1 15 mi41 min SE 5.1 G 8.9
PFXC1 16 mi47 min E 6 G 8.9 64°F
OHBC1 - 9410660 - Los Angeles, CA 16 mi41 min 65°F1014.1 hPa
PRJC1 18 mi47 min ESE 6 G 8.9
46256 19 mi59 min 66°F2 ft
46222 - San Pedro, CA (092) 21 mi59 min 65°F3 ft
46253 27 mi59 min 67°F2 ft
46262 34 mi59 min 66°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi39 min SE 9.7 G 16 61°F 66°F1013.4 hPa61°F

Wind History for Santa Monica, CA
(wind in knots)    EDIT      (on/off)   Help
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last
24hr
NW2
SW3
NW2
W3
NW4
NW3
NW4
W2
W3
SW5
W7
W9
W8
W9
SW10
SW11
SW10
SW8
SW6
W5
W1
N1
--
--
1 day
ago
SE3
S4
S7
SE3
SE3
SW3
E4
W3
S5
SW7
SW7
W7
SW9
SW9
SW7
SW11
W11
W10
SW8
G11
W7
SW2
G6
SW4
SW2
SE1
2 days
ago
W2
NW2
E1
S2
SW5
SW8
SW11
SW11
W12
W12
W14
W13
G16
W11
W10
W11
SW9
SW11
W11
G14
W7
SW7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi66 minESE 77.00 miOvercast65°F60°F84%1013.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi66 minVar 57.00 miOvercast65°F60°F84%1014 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi68 minN 07.00 miOvercast64°F59°F84%1013.9 hPa
Los Angeles / USC Campus Downtown, CA11 mi72 minN 07.00 miOvercast66°F60°F81%1013.6 hPa
Long Beach, Long Beach Airport, CA16 mi66 minVar 310.00 miOvercast65°F60°F84%1014 hPa
Burbank - Bob Hope Airport, CA20 mi66 minSSE 57.00 miOvercast64°F61°F90%1012.8 hPa
Van Nuys, Van Nuys Airport, CA21 mi68 minESE 45.00 miFog/Mist63°F59°F87%1013.2 hPa
Los Alamitos Army Airfield, CA22 mi2 hrsSSE 310.00 miMostly Cloudy65°F59°F84%1014.5 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi66 minSW 310.00 miOvercast66°F60°F81%1013.8 hPa

Wind History from LAX (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last 24hr4CalmCalm3CalmCalm4CalmCalmW5W8W8W11W10W12W12W12W11W9W8W3SW4SE7SE7
1 day agoW9W9SW8W6W6CalmCalmCalmCalmW7W8W10W13SW13
G18
SW11SW10W12W11W10W10W8W6NW43
2 days agoW8W8W6W6W5W5W4W4SW6W10W11W13SW15W14
G20
W14
G20
W14W15W13W11W11W9W11W11W8

Tide / Current Tables for El Segundo, Santa Monica Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
El Segundo
Click for Map
Thu -- 01:43 AM PDT     Moonset
Thu -- 05:01 AM PDT     3.67 feet High Tide
Thu -- 05:43 AM PDT     Sunrise
Thu -- 11:13 AM PDT     0.75 feet Low Tide
Thu -- 02:15 PM PDT     Moonrise
Thu -- 06:05 PM PDT     5.04 feet High Tide
Thu -- 08:08 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.722.53.13.53.73.532.31.610.80.91.42.23.24.14.854.94.33.42.51.7

Tide / Current Tables for Santa Monica, California
   EDIT      (on/off)   Help   One Week of Data
Santa Monica
Click for Map
Thu -- 01:43 AM PDT     Moonset
Thu -- 04:50 AM PDT     3.80 feet High Tide
Thu -- 05:43 AM PDT     Sunrise
Thu -- 11:03 AM PDT     0.82 feet Low Tide
Thu -- 02:16 PM PDT     Moonrise
Thu -- 05:56 PM PDT     5.22 feet High Tide
Thu -- 08:08 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.82.22.73.33.73.83.632.31.610.811.62.53.54.455.254.33.42.51.7

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (3,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Santa Ana Mtns, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.