Wednesday, October16, 2019 L-36.com


Marine Weather and Tides
Seal Beach, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:56AMSunset 6:19PM Wednesday October 16, 2019 2:49 PM PDT (21:49 UTC) Moonrise 8:20PMMoonset 9:28AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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- 214 Pm Pdt Wed Oct 16 2019
Tonight..W winds 10 to 20 kt in the evening, becoming variable 10 kt or less. Wind waves 1 to 3 ft. Mixed swell W 2 to 4 ft at 6 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
Thu..NW winds 5 to 10 kt, becoming W 15 to 20 kt in the afternoon. Wind waves 2 to 3 ft. W swell 3 to 4 ft at 7 seconds.
Thu night..Santa Monica bay, N winds 10 to 20 kt nearshore between malibu to san pedro in the evening, then increasing 15 to 25 kt across the santa Monica bay after midnight. Otherwise, se winds 10 kt or less south of long beach. Combined seas 4 to 6 ft dominant period 9 seconds.
Fri..West of santa Monica, N to ne winds 15 to 25 kt, becoming W 10 to 20 kt in the afternoon. Otherwise, se winds around 10 kt in the morning, becoming sw 10 to 15 kt in the afternoon. Combined seas 4 to 6 ft dominant period 9 seconds. W swell 4 to 6 ft at 9 seconds.
Fri night..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 5 to 6 ft at 9 seconds.
Sat..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
Sun..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 4 ft.
PZZ600 214 Pm Pdt Wed Oct 16 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 978 mb low was across the gulf of alaska with a 1018 mb surface high was centered 350 nm west of point conception.


7 Day Forecast for Marine Location Near Seal Beach, CA
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location: 33.74, -118.12     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 162126
afdlox
area forecast discussion
national weather service los angeles oxnard ca
226 pm pdt Wed oct 16 2019

Synopsis 16 105 pm.

High pressure will keep temperatures above normal today. Then on
Thursday, a low pressure trough will cool temperatures throughout
the region. Gusty northerly winds are expected Thursday through
early next week, especially across santa barbara and los angeles
counties.

Short term (tdy-sat) 16 213 pm.

High clouds continue to stream into the region today from the
southwest but having minimal impact. In fact temps today across
parts of la ventura counties have soared into the upper 80s and
90s as light offshore flow continues. However, a trough
approaching the pac NW is weakening the offshore (west east) flow
and that trend will continue into Thursday which will have several
impacts locally. First, it will be considerably cooler with highs
down a good 10-15 degrees. Second, low clouds will likely fill in
along the coastal areas south of sb county. And lastly, gusty
west to southwest winds will develop in the afternoon and may
reach advisory levels in the antelope valley.

Following the trough passage Thursday strong northerly flow will
return bringing gusty sundowner winds to SRN sb county and the i5
corridor, some of which may filter down into the adjacent valleys
and coastal areas including the central coast. The northerly flow
will be here for several days, waning slightly Friday into
Saturday but picking up again late Saturday as another trough
passage introduces additional upper air support. The Saturday
evening northerly wind event looks to be the strongest of the two
with 6-7mb northerly gradients from bfl and excellent upper
support. If models continue showing this it will likely be a
warning level wind event for SRN sb county and the i5 corridor,
with advisory level winds likely reaching some of the la ventura
valleys, sm mountains and some of the la ventura coast as well.

Temperatures will warm a few degrees Fri Sat as gradients turn
offshore (mainly coast valleys due to downslope effects) but the
upper ridge will still be well to the west over the pacific ocean
so the air mass as a whole will be relatively cool.

Long term (sun-wed) 16 223 pm.

Offshore flow will continue Sunday through Tuesday while at the
same time the ridge over the pacific will shift east and park
itself over the west coast. Temps will warm a few more degrees
Sunday then really jump up Mon Tue into the lower 90s for some
inland coastal areas and mid 90s for some of the valleys. With the
upper ridge right overhead upper support for winds will be
weakening considerably. Still expecting some gusty north to
northeast winds on Sunday, possibly advisory levels in some areas.

Then much weaker Monday and Tuesday.

Light onshore flow returns Wednesday and the ridge weakens as well
so several degrees of cooling expected.

Aviation 16 1836z.

At 1746z at klax, the marine layer was 900 feet deep. The top of
the inversion was near 1400 feet with a temperature of 26 c.

Good confidence in all 18z tafs. An area of low pressure
approaches the region on Thursday, so marine layer coverage will
increase tonight into Thursday, with only ksba getting left out of
the marine cloud action.

Klax... Good confidence in 18z taf. There is a 30 percent chance of
marine clouds arriving plus or minus two hours from forecasted
time. Any east wind component will remain less than 8 knots.

Kbur... .Good confidence in 18z taf. There is a 40 percent chance
of ifr ceiling Thursday morning.

Marine 16 210 pm.

Outer waters... Moderate confidence for small craft advisory (sca)
level gusts this morning across the outer waters S of point sal
increasing to higher confidence by this afternoon. There is a 40%
chance for SCA level gusts for the northern waters through mid
morning, then higher confidence for SCA level gusts this afternoon.

Good confidence that SCA NW wind gusts and steep seas will continue
through Thursday mid afternoon. At that time, there will be a 60%
chance for gale force winds occurring by mid Thursday afternoon through
mid morning Friday. A gale watch has been issued valid from Thursday
mid afternoon through mid morning Friday for the entire outer waters.

After a brief decrease in winds Friday morning to SCA level gusts,
there is a 50% chance for another round of gale force winds by Friday
night or Saturday morning continuing into the weekend.

Inner waters N of point sal... Winds will remain below SCA levels
through early Thursday. Moderate to high confidence in winds increasing
to SCA level Thursday afternoon through Thursday evening. With a 20%
chance for local gale force winds Thursday evening.

For the inner waters south of point conception... Winds will remain
below SCA levels through early Thursday, although there is a 30
percent chance of SCA winds for a brief time late tonight or early
thu morning. Moderate to high confidence in winds increasing to
sca level Thursday afternoon over the western half of the santa
barbara channel. There is a 30% chance for local gale force gusts
across the western portion Thursday evening. There will be a 50%
chance for SCA level gusts across the western portion of the santa
barbara channel both Fri and Sat late afternoon and evening
hours, then a 30-40% chance for Sunday afternoon and evening.

For the santa monica bay... There is a 50% chance for northerly sca
level gusts late Thursday evening through Friday mid morning.

Winds will then shift out of the south near shore, east of malibu
and under SCA level thresholds by late morning into the afternoon
hours.

A long-period, large NW swell is expected to move into the waters
on Thursday and will likely persist through the weekend.

Lox watches warnings advisories
Ca... None.

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

Gale watch in effect from Thursday afternoon through Friday
morning for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
Moderate to strong northerly winds are expected through Sunday,
focused over santa barbara and los angeles counties. These winds
may produce damaging gusts near 60 mph Saturday night around the
santa ynez range and the interstate 5 corridor. These winds and
moderately dry conditions may result in critical fire weather
conditions in santa barbara county. Gusty santa ana winds are
possible Sunday into Monday morning with critical fire weather
conditions possible over los angeles and ventura counties.

Public... Mw
aviation... Sweet kaplan
marine... Sweet
synopsis... Phillips
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 4 mi56 min WSW 12 G 13
PFXC1 5 mi56 min SSW 11 G 13
46256 5 mi50 min 66°F2 ft
PFDC1 6 mi62 min S 8.9 G 11
PSXC1 6 mi56 min S 4.1 G 6
AGXC1 7 mi56 min SW 13 G 15
BAXC1 7 mi56 min SSE 5.1 G 5.1
OHBC1 - 9410660 - Los Angeles, CA 8 mi56 min 65°F1010.8 hPa
PXAC1 8 mi62 min SSW 1.9 G 2.9
46253 12 mi50 min 68°F2 ft
46222 - San Pedro, CA (092) 13 mi57 min 69°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 27 mi56 min W 5.1 G 8 69°F 65°F1011.2 hPa
46221 - Santa Monica Bay, CA (028) 28 mi54 min 68°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 49 mi40 min W 14 G 16 65°F 67°F1011.6 hPa65°F

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Alamitos Army Airfield, CA5 mi1.9 hrsSW 87.00 miMostly Cloudy76°F59°F57%1011.8 hPa
Long Beach, Long Beach Airport, CA6 mi57 minS 610.00 miFair81°F53°F38%1010.2 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi57 minS 510.00 miFair84°F57°F40%1009.8 hPa
Torrance, Zamperini Field Airport, CA12 mi63 minWNW 710.00 miPartly Cloudy81°F62°F54%1010.5 hPa
John Wayne-Orange County Airport, CA14 mi57 minVar 510.00 miMostly Cloudy81°F57°F45%1010.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA18 mi57 minWSW 910.00 miFair79°F57°F49%1010.4 hPa
Los Angeles, Los Angeles International Airport, CA20 mi57 minSW 910.00 miMostly Cloudy77°F61°F58%1010.5 hPa
Los Angeles / USC Campus Downtown, CA21 mi58 minN 010.00 miFair91°F53°F27%1009.5 hPa

Link to 5 minute data for KSLI

Wind History from SLI (wind in knots)
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Last 24hrW6W8W11W11NW9NW5N3Calm----------------CalmCalm333SW7SW8S7
1 day ago--------------------------------Calm33SW3W6W6W6W5
2 days agoSW8----------------------------------------------

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Wed -- 12:08 AM PDT     3.55 feet High Tide
Wed -- 05:43 AM PDT     1.07 feet Low Tide
Wed -- 06:57 AM PDT     Sunrise
Wed -- 09:27 AM PDT     Moonset
Wed -- 11:45 AM PDT     4.61 feet High Tide
Wed -- 06:17 PM PDT     Sunset
Wed -- 06:50 PM PDT     0.30 feet Low Tide
Wed -- 08:20 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.42.92.31.61.21.11.42.133.94.54.64.33.62.71.810.40.30.61.21.92.6

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Wed -- 04:31 AM PDT     1.76 feet Low Tide
Wed -- 06:58 AM PDT     Sunrise
Wed -- 09:28 AM PDT     Moonset
Wed -- 10:44 AM PDT     5.72 feet High Tide
Wed -- 05:36 PM PDT     0.43 feet Low Tide
Wed -- 06:17 PM PDT     Sunset
Wed -- 08:20 PM PDT     Moonrise
Wed -- 11:52 PM PDT     3.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.23.62.92.21.81.82.33.1455.65.75.34.43.22.11.10.50.50.91.62.53.33.8

Weather Map
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wmap_P
GEOS 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 (17,4,5,8)
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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.