Monday, May21, 2018 L-36.com


Marine Weather and Tides
Santa Monica, 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 5:46AMSunset 7:54PM Monday May 21, 2018 7:21 PM PDT (02:21 UTC) Moonrise 12:13PMMoonset 1:11AM Illumination 47% Phase: First Quarter Moon; Moon at 7 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- 203 Pm Pdt Mon May 21 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 3 to 4 ft at 8 seconds.
Tue..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 10 seconds and S 2 ft at 18 seconds.
Tue night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 3 ft at 18 seconds. Patchy fog after midnight.
Wed..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 3 ft at 17 seconds. Patchy fog in the morning.
Wed night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 16 seconds. Patchy fog after midnight.
Thu..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 ft at 9 seconds and S 3 ft at 15 seconds.
Thu 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 3 ft at 6 seconds and W 3 ft at 15 seconds.
Fri..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Sat..W winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft.
PZZ600 203 Pm Pdt Mon May 21 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z...or 1 pm pdt...a 1026 mb high was located 1000 nm west of point conception and a 1004 mb low was near las vegas. A long period southerly swell will arrive across the coastal waters Tuesday and persist into Thursday.

7 Day Forecast for Marine Location Near Santa Monica, CA
   Hourly   EDIT   Help
location: 34.01, -118.52     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 220138
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
638 pm pdt Mon may 21 2018

Synopsis 21 638 pm.

A series of low pressure systems moving over the state will bring
continued onshore flow and below normal temperatures through much
of the week. A deep marine layer will continue night through
morning low clouds and fog for the coast and valley areas. Any
shower activity should remain confined to the mountains through
Tuesday.

Short term (tdy-thu) 21 212 pm.

Very little afternoon clearing so far, and starting to see some
cumulus development over the los angeles and ventura county
mountains. The chance of afternoon or early evening
thunderstorms isn't zero, but its not a very high number. If a
thunderstorm forms over the la mountains it will likely drift
into the antelope valley.

The low heights, strong onshore flow, and persisting cloud cover
have all worked to keep the temperatures down. Afternoon highs
will likely be 5-10 degrees below average. Today should be the
coolest of the week.

The upper low responsible for the overcast skies and drizzle will
move to the east on Tuesday. The marine layer will remain
essentially unchanged from today and and it will likely be
another overcast day south of pt conception. Expecting conditions
be be a bit better on the central coast, with the low clouds
clearing by late morning. There is enough moisture remaining that
the afternoon clouds expected over the ventura county mountains
could lead to a light shower or two, so added that slight chance
into the forecast.

A weak ridge pops up for Wednesday, lowering the marine layer
and increasing the strength of the inversion. Onshore flow
will continue, but the strength should weaken a bit. Expecting
late morning clearing for all locations with a degree or so of
warming, but still a few degrees below normal.

Another upper level heading our way will drive the forecast for
the remainder of the week. On Thursday the system is expected to
be west of san francisco and our area will be transitioning from
the weak ridge to the oncoming trough associated with the upper
low. Similar weather to Wednesday with maybe another degree of
heating.

Long term (fri-mon) 21 213 pm.

The numerical models, which have been inconsistent, seem to think
the system will remain to our north. This solution includes a
110kt jet streak passing overhead on Friday along with some
vorticity that could mean showers at the start of the holiday
weekend. Did not add any at this time.

The extended forecast all plays out based on the track of the
upper level low. Right now that looks like the low moving to the
southeast on Saturday and dropping our heights. Unlike today we
don't expect the extensive cloudiness, and the onshore flow will
be about half as strong so temperatures should remain about the
same as on Friday. Look for a typical night through morning low
cloud pattern across the coasts and most of the valleys.

A ridge builds over the region Sunday and Monday and am
expecting some strong temperature gains along with the height
rises. Onshore flow remains fairly weak. If it all works out as it
looks now, then afternoon high temperatures will finally be above
normal by Monday.

Aviation 22 0129z.

At 00z, a deep moist layer was up to around 4000 feet.

Low-to-moderate confidence in the current forecast. Highest
confidence exists in MVFR conditions redeveloping through 13z at
coastal and valley terminals. There is a chance of ifr conditions
between 08z and 16z. MVFR toVFR conditions with ceilings at or
below 5000 feet could linger throughout Tuesday.

Klax... There is a 30 percent chance of ifr conditions between 09z
and 16z. There is a 50 percent chance of MVFR conditions lingering
up to 2 hours longer than the current forecast, and possibly
throughout the period.

Kbur... There is a 30 percent chance of ifr conditions between 09z
and 16z. There is a 20 percent chance ofVFR conditions developing
on Tuesday afternoon.

Marine 21 201 pm.

For the outer waters, high confidence in small craft advisory
(sca) level winds continuing through late tonight. For Tuesday
through Thursday, winds and seas will remain below SCA levels. A
long period southerly swell will arrive Tuesday with mixed swells.

On Saturday, there is a 40% chance of SCA level winds, especially
across pzz673 676.

For the inner waters, high confidence in current forecast. For the
waters north of point sal, SCA level winds will occur through this
evening then winds seas are expected to remain below SCA levels
Tuesday through Friday. For the waters south of point conception,
winds and seas will remain below SCA levels through Friday. A
long period southerly swell will arrive over the waters with
locally rough harbor entrances from Tuesday afternoon through
Thursday.

Lox watches warnings advisories
Ca... Beach hazards statement in effect from Tuesday afternoon
through Thursday evening for zones 40-41-87. (see laxcfwlox).

Pz... Small craft advisory in effect until 3 am pdt Tuesday for
zones 645-670-673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
Strong rip currents and elevated surf will linger at south-facing
beaches across los angeles and ventura counties.

Public... Jld
aviation... Hall
marine... Eb
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 1 mi51 min W 7 G 8 60°F 59°F1011.5 hPa
46221 - Santa Monica Bay, CA (028) 12 mi51 min 58°F4 ft
PSXC1 23 mi51 min W 2.9 G 7
OHBC1 - 9410660 - Los Angeles, CA 24 mi51 min 62°F1011.2 hPa
PFXC1 24 mi51 min SW 7 G 8.9 64°F
PRJC1 26 mi51 min WSW 9.9 G 9.9
46256 27 mi51 min 63°F4 ft
46222 - San Pedro, CA (092) 29 mi51 min 63°F4 ft
46262 33 mi51 min 63°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 34 mi41 min NNW 9.7 G 12 1011 hPa
46253 35 mi51 min 64°F3 ft

Wind History for Santa Monica, CA
(wind in knots)    EDIT      (on/off)   Help
8
PM
9
PM
10
PM
11
PM
12
AM
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
Last
24hr
W8
W10
W7
W11
W6
W5
W3
NW1
SW2
S1
S1
S3
S2
SW4
SW4
S3
SW5
W4
W9
W10
W11
W10
W8
W6
1 day
ago
W10
W8
W6
W4
W4
SW5
SW4
SW3
SW3
W2
W4
S1
SW2
S2
W5
SW3
W8
W9
W8
W10
W11
W10
W11
W10
2 days
ago
SW9
SW6
S3
S4
SW3
SE3
SE3
SW2
N3
N3
N3
NW2
W2
W2
W4
W5
W6
W7
W8
W11
W10
W12
W11
W11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Monica, Santa Monica Municipal Airport, CA4 mi30 minWSW 710.00 miOvercast61°F51°F70%1011.1 hPa
Los Angeles, Los Angeles International Airport, CA8 mi28 minW 810.00 miPartly Cloudy62°F51°F67%1011.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA11 mi28 minW 610.00 miA Few Clouds63°F52°F68%1011.3 hPa
Los Angeles / USC Campus Downtown, CA13 mi34 minW 310.00 miOvercast64°F52°F65%1010.7 hPa
Van Nuys, Van Nuys Airport, CA14 mi30 minS 610.00 miOvercast62°F50°F65%1010.1 hPa
Burbank - Bob Hope Airport, CA16 mi28 minS 510.00 miOvercast61°F52°F72%1009.7 hPa
Los Angeles, Whiteman Airport, CA18 mi26 minE 510.00 miOvercast61°F50°F68%1011.8 hPa
Torrance, Zamperini Field Airport, CA18 mi34 minW 910.00 miA Few Clouds61°F51°F72%1011.2 hPa
Long Beach, Long Beach Airport, CA23 mi28 minVar 410.00 miOvercast65°F52°F63%1011 hPa

Wind History from SMO (wind in knots)
8
PM
9
PM
10
PM
11
PM
12
AM
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
Last 24hrSW6SW4S5SW4SW5SW3SW4CalmCalmCalmCalmSW3SW3SW5S5S5SW6SW7SW7SW8W7SW8W6SW7
1 day agoW7SW3SW6SW4SW4SW4SW4SW3SW4W3SW5CalmCalmCalmSW4S5SW6SW6SW9SW8SW9W9SW10W4
2 days agoSW6SW5S3S3SW3S3CalmCalmCalmCalmCalmCalmCalmCalmSW5SW63SW7SW8W8W7W8SW10W9

Tide / Current Tables for Santa Monica, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Santa Monica
Click for Map
Mon -- 01:11 AM PDT     Moonset
Mon -- 02:16 AM PDT     4.89 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 09:46 AM PDT     -0.27 feet Low Tide
Mon -- 12:12 PM PDT     Moonrise
Mon -- 04:58 PM PDT     4.15 feet High Tide
Mon -- 07:53 PM PDT     Sunset
Mon -- 08:50 PM PDT     First Quarter
Mon -- 10:11 PM PDT     2.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.14.64.94.84.33.52.41.30.4-0.1-0.30.10.81.72.63.444.143.63.12.72.52.6

Tide / Current Tables for El Segundo, Santa Monica Bay, California
   EDIT      (on/off)   Help   One Week of Data
El Segundo
Click for Map
Mon -- 01:10 AM PDT     Moonset
Mon -- 02:26 AM PDT     4.69 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 09:56 AM PDT     -0.29 feet Low Tide
Mon -- 12:12 PM PDT     Moonrise
Mon -- 05:08 PM PDT     4.01 feet High Tide
Mon -- 07:52 PM PDT     Sunset
Mon -- 08:50 PM PDT     First Quarter
Mon -- 10:23 PM PDT     2.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.84.34.74.64.23.52.51.40.5-0.1-0.3-00.61.52.43.23.843.93.53.12.62.42.4

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 (22,6,7,8)
      (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.