Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
Manhattan Beach, CA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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Sunrise 6:17AMSunset 7:36PM Tuesday August 20, 2019 5:30 PM PDT (00:30 UTC) Moonrise 10:39PMMoonset 10:49AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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- 224 Pm Pdt Tue Aug 20 2019
Tonight..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 ft at 10 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. W swell 2 to 3 ft at 7 seconds. SW swell 2 ft. Patchy fog in the morning.
Wed night..SW winds 10 to 15 kt, becoming se 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 7 seconds. Patchy fog after midnight.
Thu..S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds. Patchy fog in the morning.
Thu night..Winds variable 10 kt or less, becoming se 10 to 15 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds. SW swell 2 ft.
Fri..SE winds 5 to 10 kt, becoming sw in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds. SW swell 2 ft.
Fri night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 9 seconds.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft.
PZZ600 224 Pm Pdt Tue Aug 20 2019
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 1018 mb surface high was located about 750 nm sw of san diego with a 1010 mb low located 150 nm W of portland or. A 1004 mb thermal low was centered near las vegas.


7 Day Forecast for Marine Location Near Manhattan Beach, CA
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location: 33.88, -118.41     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 202232
afdlox
area forecast discussion
national weather service los angeles oxnard ca
332 pm pdt Tue aug 20 2019

Synopsis 20 1234 pm.

Conditions will warm into Wednesday, then cool back to near
normal values by the end of the week. Morning low clouds and fog
will continue to affect coastal areas, becoming more widespread
by the end of the week.

Short term (tdy-fri) 20 153 pm.

Marine layer clouds have pretty much dissipated across the area,
even including most of the coastal waters as heights build aloft,
onshore flow decreases, and more importantly northerly flow
increases. North south gradients are 1-2mb stronger than they were
yesterday at this time and models are indicating a stronger and
more widespread wind event for southern sb county. Still primarily
a western portion event but likely pushing closer to the beaches
rather than being confined to just the elevated areas. Later on
any marine layer return should be confined to the central coast
and la county but pretty low confidence even with that.

After the 5 or so degrees of warming today most valleys tomorrow
should again see another 5 degrees of warming, pushing highs to at
or slightly above 100 for the warmest valley locations. Coastal
areas will be warmer as well, especially southern sb county where
the downsloping sundowner winds will provide an additional
heating factor. Wind speeds in that area are expected to be a
notch higher than today so another wind advisory will likely be
needed.

Wednesday should be the warmest day as a trough moving through to
the north will introduce a cooler air mass and onshore trends on
Thursday and Friday. By Friday daytime highs should be very close
to normal and the marine layer will likely return to all coastal
areas as well and possibly some valleys.

Long term (sat-tue) 20 204 pm.

Fairly uneventful period of weather over the weekend into early
next week. The ridge rebuilds Saturday and Sunday which should
lead to a few degrees of warming in most areas, but moderate
onshore flow is expected to remain in place so we'll likely see a
shallow but widespread marine layer near the coast during the
night and morning hours at least.

No monsoon moisture expected through the weekend. The GFS shows a
tropical cyclone spinning up off the southern baja coast early
next week and it's possible we could see some mid and high clouds
from it but too dry at lower levels to pose much of a risk for
convection.

Aviation 20 1832z.

At 1709z at klax, the marine layer depth was 1100 ft. The top of
the inversion was around 2400 ft with a temp of 23c.

The marine layer depth ranges from 900 feet south of point
conception to 1500 feet on the central coast. North flow across
the area will limit the inland push of marine clouds tonight and
Wednesday morning. Therefore, TAF sites on the central coast and
los angeles county coast have the best chance of marine cloud
intrusion with either MVFR or ifr ceilings.

Klax... Low to moderate confidence in the 18z taf. There is a 40%
chance forVFR conditions through the period. Low clouds will be
patchy in nature. Good confidence in no east wind component over
3 kt.

Kbur... High confidence in cavu 18z taf.

Marine 20 157 pm.

Outer waters... Moderate to high confidence in current forecast.

Small craft advisory (sca) level winds are expected to continue
through at least early Wednesday afternoon. There is a 30% chance
that winds will briefly drop below SCA levels late tonight and
wed morning. Gale warnings have been issued across the outer
waters including areas NW of san nicolas island from Wednesday
afternoon through early Thursday morning.

Inner waters north of pt sal... Fair confidence in forecast with a
60% chance of SCA level winds during the afternoon and evening
today and Wednesday and a 40-50% chance on Thursday.

For the inner waters south of point conception... Good confidence
in forecast. There is a 60% chance for SCA level NW to N winds
across the western portions of the sba channel late this afternoon
through late tonight and once again during the same times
Wednesday. Not expecting sundowner winds on Thursday.

Fire weather 20 329 pm.

Very warm and dry conditions will continue across interior sections
through Thursday. Peak temperatures are expected Wednesday when
warmest mountain, desert, and valley areas will top 100 degrees.

Minimum humidities between 10 and 20 percent will be common across
interior areas through Thursday, with some single digit readings in
the mountains and antelope valley, especially Wednesday. In addition
to the typical gusty onshore winds in the afternoon and evening
hours, there will be some northerly breezes during the overnight and
early morning hours across the interstate 5 and highway 33 corridors
in the mountains and santa clarita valley.

Gusty sundowner winds with warm and dry conditions will also bring
elevated fire danger to the santa barbara south coast and foothills
through Wednesday night, especially western portions where winds
will be strongest. Wind gusts between 35 and 45 mph will be common
in the canyons and foothills from gaviota to goleta during the late
afternoon through nighttime hours (with isolated gusts to 50 mph near
gaviota), along with gusts in the 25 to 35 mph range during the
overnight hours in the hills above montecito and carpinteria. Minimum
humidities through this evening are expected to remain in the 25 to
40 percent range, then lower to between 15 and 30 percent on
Wednesday afternoon and evening, when temperatures will likely climb
above 90 degrees in warmest foothill and canyon locations. Peak
santa barbara-santa maria gradients are expected to be around -4.0
mb this evening and Wednesday evening, with peak santa barbara-
bakersfield gradient expected to be -3.0 to -3.5 mb late tonight.

Lox watches warnings advisories
Ca... Wind advisory in effect until 3 am pdt Wednesday for zones
39-52. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 am pdt Wednesday for
zones 645-650. (see laxmwwlox).

Small craft advisory in effect until 3 pm pdt Wednesday for
zones 670-673-676. (see laxmwwlox).

Gale warning in effect from 3 pm Wednesday to 3 am pdt
Thursday for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (fri-tue)
No significant hazards expected.

Public... Mw
aviation... Sweet kaplan
marine... Sweet
fire... Gomberg
synopsis... Kittell
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 10 mi49 min WSW 9.9 G 13 67°F 72°F1012.3 hPa
46221 - Santa Monica Bay, CA (028) 12 mi35 min 71°F3 ft
PSXC1 12 mi43 min WNW 7 G 9.9
OHBC1 - 9410660 - Los Angeles, CA 13 mi49 min 63°F1011.8 hPa
PFXC1 14 mi43 min WSW 6 G 7
PRJC1 16 mi43 min W 17 G 17
46256 17 mi31 min 64°F3 ft
46222 - San Pedro, CA (092) 19 mi38 min 71°F4 ft
46253 24 mi31 min 69°F4 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi31 min NW 3.9 G 5.8 68°F 1012.4 hPa (-1.5)66°F

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA4 mi98 minWSW 1210.00 miFair76°F61°F60%1011.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi98 minW 1210.00 miFair77°F59°F54%1011.8 hPa
Torrance, Zamperini Field Airport, CA7 mi1.7 hrsW 1610.00 miClear75°F60°F61%1011.5 hPa
Santa Monica, Santa Monica Municipal Airport, CA11 mi1.7 hrsW 810.00 miFair72°F61°F68%1011.9 hPa
Los Angeles / USC Campus Downtown, CA12 mi99 minWNW 69.00 miFair81°F60°F49%1011.2 hPa
Long Beach, Long Beach Airport, CA14 mi98 minWNW 1010.00 miFair85°F59°F42%1011.3 hPa
Los Alamitos Army Airfield, CA20 mi93 minS 910.00 miFair85°F51°F32%1011.4 hPa
Burbank - Bob Hope Airport, CA22 mi98 minSSW 810.00 miFair88°F51°F28%1010.1 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi98 minS 510.00 miFair87°F60°F40%1010.7 hPa
Van Nuys, Van Nuys Airport, CA23 mi1.7 hrsSSE 810.00 miFair92°F54°F28%1010.1 hPa

Link to 5 minute data for KLAX

Wind History from LAX (wind in knots)
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Last 24hrW12W13----------SE5CalmCalmSW3CalmS3E3Calm33W8W10W11----W12W14
1 day agoW13W14W13--W8--SW5----SW4SW6CalmCalmCalm--SE533SW8--SW10W12W13W14
2 days agoW10W8W8W9W7W44--S5CalmE3E3----4S6SE74W9W8SW10W11W12W13
G17

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
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Tue -- 12:19 AM PDT     4.33 feet High Tide
Tue -- 06:18 AM PDT     Sunrise
Tue -- 06:45 AM PDT     1.21 feet Low Tide
Tue -- 10:49 AM PDT     Moonset
Tue -- 01:16 PM PDT     4.35 feet High Tide
Tue -- 07:22 PM PDT     2.03 feet Low Tide
Tue -- 07:34 PM PDT     Sunset
Tue -- 10:38 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.34.23.83.22.41.81.31.21.52.12.83.54.14.34.33.93.32.82.322.12.42.83.3

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Tue -- 12:07 AM PDT     4.44 feet High Tide
Tue -- 06:19 AM PDT     Sunrise
Tue -- 06:34 AM PDT     1.26 feet Low Tide
Tue -- 10:49 AM PDT     Moonset
Tue -- 01:05 PM PDT     4.44 feet High Tide
Tue -- 07:11 PM PDT     2.11 feet Low Tide
Tue -- 07:34 PM PDT     Sunset
Tue -- 10:39 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.33.83.12.31.71.31.31.62.233.74.24.44.33.93.32.72.32.12.22.533.4

Weather Map and Satellite Images
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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.
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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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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.