Wednesday, July26, 2017 L-36.com


Marine Weather and Tides
South Pasadena, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 5:58AMSunset 8:00PM Tuesday July 25, 2017 9:36 PM PDT (04:36 UTC) Moonrise 8:29AMMoonset 9:51PM Illumination 7% 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- 815 Pm Pdt Tue Jul 25 2017
Tonight..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 ft at 9 seconds and S 2 ft at 12 seconds. Patchy fog after midnight.
Wed..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 2 ft at 12 seconds. Patchy fog in the morning.
Wed night..W winds 10 to 15 kt...becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 11 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. W swell 1 to 2 ft at 9 seconds. Patchy fog in the morning.
Thu night..W 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 9 seconds. SE swell 1 to 2 ft. Patchy fog after midnight.
Fri..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 8 seconds and S 2 ft at 17 seconds. Patchy fog in the morning.
Fri 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 ft at 8 seconds and S 3 ft at 16 seconds. Patchy fog after midnight.
Sat..S winds 5 to 10 kt. Wind waves 2 ft or less. S swell 4 to 5 ft. Patchy fog.
Sun..SW winds 5 to 10 kt. Wind waves 2 ft or less. S swell 3 to 5 ft. Patchy fog.
PZZ600 815 Pm Pdt Tue Jul 25 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...1031 mb surface high pressure was centered 600 nm miles west of eureka and a 1009 mb thermal low was near needles. This pattern will change little through Thursday.

7 Day Forecast for Marine Location Near South Pasadena, CA
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location: 34.14, -118.2     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 260407
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
907 pm pdt Tue jul 25 2017

Synopsis
Dry southwest flow aloft and building high pressure will
gradually warm temperatures this week to a few degrees above
normal. Overnight and morning low clouds will continue along the
coast.

Short term (tue-fri)
the monsoonal moisture in place the last couple of days is slowly
starting to stabilize and dry as drier southwest flow aloft
entrains into the flow and the surface loses solar insolation.

Mentions of showers and thunderstorms have been removed from the
forecast for tonight in the latest update.

A high pressure system centered over texas will slowly build in
into the four corners region through late Thursday. As it does, a
warming trend will develop due to weakening onshore flow and a
thinning marine layer. Nam-wrf time height sections across the
area continues to indicate a similar trend with the near-surface
moisture getting squashed each day through Thursday and remaining
shallow into Friday. A few tweaks have been made to the forecast
based upon the latest data, but otherwise, the forecast seems on
track.

*** from previous discussion ***
temperatures could reach toward dangerously hot levels across
portions of the area on Friday and a heat advisory could needed
Friday for the los angeles and ventura county mountains, if this
trend continues.

Long term (sat-tue)
the ridge aloft weakens some while pushing into northern arizona
over the weekend as the remnant moisture from hurricane hilary
could get embedded in the flow around the high pressure system.

Gfs and ECMWF solutions hint at some semblance of an easterly wave
moving over the region. A slight chance of showers and
thunderstorms remain in the forecast over the weekend over the
mountains and desert and into early next week as a low confidence
forecast looks to develop.

Some model differences start to develop over the weekend and into
early next week. Both model solutions agree that the high pressure
system will strengthen to near 598 dm over the great basin some
time between Tuesday and late next week. While agreement exists
for further warming, timing will be difficult to place as much
will depend upon the movement of the remnants of hurricane hilary.

Aviation 26 0119z.

At 00z, the marine layer depth was around 1250 feet deep at klax.

The top of the marine inversion was around 1900 feet with a
temperature near 21 degrees celsius. There was another inversion
above up to 5000 feet.

Moderate confidence in the forecast. Higher confidence in
categories. Lower confidence in timing. Lifr to ifr conditions,
except MVFR conditions for los angeles county coastal terminals
will spread in between 05z and 13z. Highest confidence in timing
for terminals north of point conception, but southern terminals
could delay by up 4-6 hours after the current forecast.

Klax... There is a 70 percent chance of MVFR conditions between 06z
and 17z; however, MVFR conditions could delay until as late as
13z. There is a 30 percent chance ofVFR conditions continuing
throughout the period.

Kbur... There is a 40 percent chance of ifr to MVFR conditions
between 10z and 16z, otherwiseVFR conditions will likely
continuing throughout the period.

Marine 25 800 pm.

For the outer waters, good confidence in current forecast. Winds
and seas will remain below small craft advisory (sca) levels
through Thursday. For Friday and Saturday, winds may increase to
sca levels in the far north portion.

For the inner waters, good confidence in current forecast. For the
waters north of point sal, winds and seas are expected to remain
just below SCA levels through Saturday. For the waters south of
point conception, winds and seas will remain below SCA levels
through Saturday.

Beaches 25 900 pm.

Hurricane hilary will generate a southeasterly swell that will
impact southern california beaches this weekend. The southeasterly
swell will move into the coastal waters early Friday, then peak
on Sunday. High surf conditions as well as strong rip currents
will be likely across south-facing beaches this weekend. Isolated
damaging sets of surf and beach erosion cannot be ruled out for
the south-facing beaches of los angeles and ventura counties.

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

Pz... None.

Hazard potential outlook (fri-tue)
a significant surf event could develop late Thursday as swells
from hurricane hilary arrive at the southern california beaches.

High surf and strong rip currents will occur from Friday through
Sunday.

Public... Hall
aviation... Hall
marine... Sweet sirard
beaches... Sweet
synopsis... Smith
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 18 mi55 min WSW 7 G 9.9 68°F 71°F1014.8 hPa
BAXC1 26 mi49 min NNW 8 G 8.9
PSXC1 26 mi49 min NNW 6 G 8.9
PXAC1 26 mi55 min NNW 6 G 7
PFXC1 27 mi49 min N 5.1 G 6 71°F
PRJC1 28 mi49 min WSW 9.9 G 12
PFDC1 28 mi49 min S 1.9 G 2.9
AGXC1 29 mi49 min WSW 8.9 G 12 68°F 1014.7 hPa
OHBC1 - 9410660 - Los Angeles, CA 29 mi49 min 67°F1014.8 hPa
46221 - Santa Monica Bay, CA (028) 30 mi37 min 72°F3 ft
46256 30 mi45 min 66°F2 ft
46222 - San Pedro, CA (092) 37 mi37 min 69°F2 ft
46253 39 mi37 min 68°F3 ft

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles / USC Campus Downtown, CA9 mi50 minN 010.00 miFair70°F63°F79%1014.3 hPa
Burbank - Bob Hope Airport, CA9 mi44 minVar 510.00 miFair71°F57°F63%1013.4 hPa
El Monte, CA10 mi1.9 hrsWSW 610.00 miFair77°F57°F51%1014.9 hPa
Los Angeles, Whiteman Airport, CA14 mi2.7 hrsSE 710.00 miClear84°F57°F40%1015.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA15 mi46 minWSW 610.00 miMostly Cloudy69°F64°F84%1014.6 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi44 minWSW 610.00 miFair69°F63°F81%1014.8 hPa
Van Nuys, Van Nuys Airport, CA16 mi46 minE 610.00 miFair73°F57°F59%1013.8 hPa
Los Angeles, Los Angeles International Airport, CA17 mi44 minWSW 710.00 miA Few Clouds68°F63°F84%1014.6 hPa
Long Beach, Long Beach Airport, CA22 mi44 minNW 710.00 miFair71°F62°F73%1014.6 hPa
Fullerton, Fullerton Municipal Airport, CA22 mi44 minSSE 510.00 miFair72°F63°F73%1014.3 hPa
Brackett Field Airport, CA22 mi50 minW 1010.00 miFair72°F57°F61%1016.3 hPa
Torrance, Zamperini Field Airport, CA24 mi1.8 hrsW 1310.00 miA Few Clouds68°F60°F78%1014.6 hPa

Wind History from CQT (wind in knots)
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Last 24hrW43W3CalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmCalm43--356W5W5Calm
1 day ago3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3Calm3CalmW43W5--W5CalmW3
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalm--CalmCalmCalm3CalmCalmW6W546W34W5W4

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Wed -- 06:01 AM PDT     Sunrise
Wed -- 06:19 AM PDT     -0.51 feet Low Tide
Wed -- 09:33 AM PDT     Moonrise
Wed -- 12:51 PM PDT     4.66 feet High Tide
Wed -- 06:18 PM PDT     1.77 feet Low Tide
Wed -- 07:59 PM PDT     Sunset
Wed -- 10:29 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.242.61.20.1-0.5-0.40.31.42.73.84.54.74.33.72.92.21.81.92.43.34.25

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Wed -- 06:01 AM PDT     Sunrise
Wed -- 06:20 AM PDT     -0.48 feet Low Tide
Wed -- 09:33 AM PDT     Moonrise
Wed -- 12:52 PM PDT     4.69 feet High Tide
Wed -- 06:19 PM PDT     1.81 feet Low Tide
Wed -- 07:59 PM PDT     Sunset
Wed -- 10:29 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.34.12.61.20.1-0.4-0.30.41.52.73.84.54.74.43.72.92.21.81.92.53.34.25

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 (0,6,7,8)
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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.