Wednesday, May24, 2017 L-36.com


Marine Weather and Tides
Pasadena, 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 Wednesday May 24, 2017 6:28 AM PDT (13:28 UTC) Moonrise 5:07AMMoonset 6:48PM Illumination 1% Phase: Waning Crescent; Moon at 28 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- 216 Am Pdt Wed May 24 2017
Today..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 13 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
Tonight..W winds 10 to 15 kt...becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 1 to 2 ft at 12 seconds. Patchy fog in the evening.
Thu..Winds variable 10 kt or less...becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 1 to 2 ft at 12 seconds.
Thu night..SW 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 11 seconds.
Fri..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 1 to 2 ft at 10 seconds.
Fri night..W winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 10 seconds.
Sat..W winds 10 to 20 kt. Wind waves 1 to 3 ft. W swell 1 to 2 ft. Patchy fog.
Sun..W winds 10 to 20 kt. Wind waves 1 to 3 ft. W swell 1 to 2 ft. Patchy fog.
PZZ600 216 Am Pdt Wed May 24 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 pdt...a 1038 mb high was high was 900 nm W of seattle and a 1004 mb low was near las vegas.

7 Day Forecast for Marine Location Near Pasadena, CA
   Hourly   EDIT   Help
location: 34.16, -118.14     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 241010
afdlox
area forecast discussion
national weather service los angeles oxnard ca
310 am pdt Wed may 24 2017

Synopsis
A low pressure system will approach southwest california by
midweek... Spreading night through morning low clouds and fog
farther inland. A cooling trend will continue through late in the
week. A ridge of high pressure will build in over the
weekend... Bringing warmer conditions for early next week. Marine
layer clouds will then be confined to near-coastal areas.

Short term (tdy-fri)
three fairly similar days ahead for SRN ca as strong onshore flow
will dominate the weather. The marine layer around klax is about
1200 feet deep but it is likely much lower from vta county
northward where are much lower ceilings and reduced visibilities.

Late this morning a trof will move over the state and this will
raise the marine layer. More importantly it will increase the
onshore flow. The NAM forecasts a 9 mb onshore push to kdag which
given the nams usual exuberance in overforecasting gradients is
more likely about 7.5 mb onshore but this is still strong enough
to bring slow to no clearing to the beaches and 45 mph advisory
level gusts to the antelope vly. The deepening marine layer... The
strong onshore flow and the lowering hgts will all combine to make
today a much cooler day everywhere (except the beaches which has
their cool down ydy) temps will cool to normal across most of the
area and the beaches will be below normal. It still looks very
unstable over the mtns this afternoon with plenty of CAPE as well
but the moisture remains the missing ingredient and its likely
that all that will develop over the mtns today is a cumulus field.

Tonight the strong onshore push will combine with the falling hgts
and weak lift of the trof to raise the marine layer to between
4000 and 5000 feet. Clouds will push all the way to the coastal
slopes and deep into the vlys. Would not be surprised to see a
little drizzle near the foothills as well.

Hard to imagine any clearing on Thursday. The NAM forecasts an
afternoon onshore push of 11.2 mb which if true would be the
highest observed in the month of may since the turn of the
century. More than likely the gradient will be around 10 mb
onshore which is still strong enough to keep the clouds over the
area and advisory level gusts in the antelope vly. MAX temps will
continue to fall ESP in the vlys and the interior and most max
temps will be 8 to 12 degrees blo normal.

Not much change on Friday and expect similar conditions to thu.

The onshore push is forecast to be about 2 mb weaker than Thu so
may just a little more clearing and maybe a degree or 2 of
warming.

Long term (sat-tue)
the trof exits and a ridge builds in starting late Friday
afternoon. Just in time to rescue the holiday weekend. The ridge
will build every day and peak on Monday. The marine layer clouds will
not go away but it will be reduced in coverage a little each day
and will clear totally by late morning. MAX temps will climb each
day. They will still be below normal on Saturday but will rise
above normal on Sunday and then on Monday MAX temps should be 8 to
12 degrees above normal will more thanThursday through a few 90 degree readings
likely in the vlys and deserts.

The ridge pushes off to the east on Tuesday and this will kick off
a slight cooling trend.

Aviation
24 1000z
at 1000z, the marine inversion at klax was based around 1200 feet.

The top of the inversion was 2900 feet with a temperature of
24 degrees celsius.

Overall, moderate confidence in 12z TAF package. Current ifr to
vlifr conditions at coastal sites will improve toVFR conditions
by the afternoon, although klax ksmo koxr will likely remain MVFR
through the afternoon. For tonight, high confidence in MVFR ifr
conditions for all coastal and valley sites, but only moderate
confidence in timing (+ - 2 hours of forecast).

Klax... Moderate confidence in 12z taf. Transition to MVFR cigs
will be between 16z and 20z. There is a 30% chance ofVFR
conditions 20z-02z. For tonight, there is a 30% chance ifr cigs
could develop.

Kbur... Moderate confidence in 12z taf. There is a 20% chance of
ifr conditions 13z-16z. For tonight, high confidence in return of
stratus, but only moderate confidence in flight category (either
ifr or MVFR) and timing (+ - 2 hours of current 06z forecast).

Marine
24 130 am
for the outer waters, high confidence in current forecast. Winds
and seas will remain below small craft advisory (sca) levels
through Friday. On Friday and Saturday, winds will likely increase
to SCA levels.

For the inner waters, high confidence in current forecast. For the
waters north of point sal, winds and seas will remain below sca
levels through Friday, but will likely increase to SCA levels
Saturday and Sunday. For the waters south of point conception,
winds and seas will remain below SCA levels through Sunday.

Lox watches warnings advisories
Ca... Wind advisory in effect from 2 pm this afternoon to 9 pm pdt
this evening for zone 59. (see laxnpwlox).

Pz... None.

Hazard potential outlook (fri-tue)
advisory level southwest winds are possible Friday across the
mountains and deserts.

Public... Rorke
aviation... Thompson
marine... Thompson
synopsis... Smith
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 22 mi41 min Calm G 1.9 58°F 65°F1011.8 hPa
PSXC1 27 mi41 min SSW 5.1 G 6
BAXC1 28 mi41 min S 2.9 G 2.9
PXAC1 28 mi41 min SW 1.9 G 2.9
PFXC1 29 mi41 min SW 4.1 G 6 59°F
PRJC1 30 mi41 min S 2.9 G 4.1
PFDC1 30 mi41 min Calm G 1
AGXC1 31 mi41 min SSW 2.9 G 4.1 59°F 1011.8 hPa
OHBC1 - 9410660 - Los Angeles, CA 31 mi41 min 60°F1011.8 hPa
46256 32 mi37 min 58°F4 ft
46221 - Santa Monica Bay, CA (028) 34 mi29 min 61°F3 ft
46222 - San Pedro, CA (092) 39 mi70 min 62°F3 ft
46253 40 mi29 min 62°F3 ft

Wind History for Santa Monica, CA
(wind in knots)    EDIT      (on/off)   Help
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
W3
S1
SW3
W8
SW12
W11
W12
G15
SW11
SW7
SW6
SW11
W16
SW10
SW8
S3
E2
E3
--
SE4
SW3
W3
S2
SE4
SW2
1 day
ago
SW3
S3
S2
SE4
S4
SW5
SW5
G8
W7
W8
W10
W11
W10
G13
SW7
SW6
S3
S2
SE4
SE3
S3
S2
SE3
--
S2
SW4
2 days
ago
SE2
S3
W4
W4
W5
SW6
SW7
W8
W6
SW6
W9
W11
W11
W8
SW5
S2
S3
S2
SE2
SE2
SW1
SW2
W2
SW4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles / USC Campus Downtown, CA12 mi42 minN 05.00 miFog/Mist60°F55°F86%1011 hPa
Burbank - Bob Hope Airport, CA12 mi36 minESE 56.00 miFair with Haze58°F53°F84%1009.7 hPa
Santa Monica, Santa Monica Municipal Airport, CA19 mi38 minSSW 59.00 mi0°F0°F%1011.5 hPa
Van Nuys, Van Nuys Airport, CA19 mi38 minSSE 410.00 miPartly Cloudy57°F54°F90%1009.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA19 mi36 minW 37.00 miOvercast58°F55°F93%1011.4 hPa
Los Angeles, Los Angeles International Airport, CA21 mi36 minSW 32.50 miFog/Mist59°F57°F93%1011.2 hPa
Fullerton, Fullerton Municipal Airport, CA22 mi36 minN 06.00 miFog/Mist60°F57°F93%1010.8 hPa
Long Beach, Long Beach Airport, CA23 mi36 minN 06.00 miFog/Mist59°F55°F87%1011.3 hPa

Wind History from EMT (wind in knots)
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
8
PM
Last 24hr----------------------CalmCalm3S3SW10
G14
SW9
G18
S11
G16
S8SW7S8SW8SW6S7
1 day ago----------------------SW4S7S4SE4CalmSW7S4SW6S11SW7S9S9--
2 days ago----------------------Calm3SW3S4S5S5S9SW11S9
G14
SW9
G14
--SW8--

Tide / Current Tables for Santa Monica, Municipal Pier, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Santa Monica
Click for Map
Wed -- 03:05 AM PDT     -0.77 feet Low Tide
Wed -- 05:08 AM PDT     Moonrise
Wed -- 05:46 AM PDT     Sunrise
Wed -- 09:17 AM PDT     4.32 feet High Tide
Wed -- 02:38 PM PDT     0.93 feet Low Tide
Wed -- 06:48 PM PDT     Moonset
Wed -- 07:55 PM PDT     Sunset
Wed -- 08:55 PM PDT     6.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.20.7-0.4-0.8-0.50.41.62.93.84.34.23.52.61.71.111.52.63.95.36.26.66.15

Tide / Current Tables for Santa Monica, California
   EDIT      (on/off)   Help   One Week of Data
Santa Monica
Click for Map
Wed -- 03:05 AM PDT     -0.74 feet Low Tide
Wed -- 05:08 AM PDT     Moonrise
Wed -- 05:46 AM PDT     Sunrise
Wed -- 09:17 AM PDT     4.36 feet High Tide
Wed -- 02:38 PM PDT     0.96 feet Low Tide
Wed -- 06:48 PM PDT     Moonset
Wed -- 07:55 PM PDT     Sunset
Wed -- 08:55 PM PDT     6.60 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.20.7-0.3-0.7-0.50.41.62.93.94.34.23.62.61.71.111.52.645.36.36.66.15

Weather Map and Satellite Images
       (on/off)   Help
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 (9,2,3,4)
      (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.