Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Hacienda Heights, 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 6:13AMSunset 7:37PM Wednesday August 16, 2017 10:43 PM PDT (05:43 UTC) Moonrise 1:05AMMoonset 3:15PM Illumination 26% Phase: Waning Crescent; Moon at 25 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- 817 Pm Pdt Wed Aug 16 2017
Tonight..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 10 seconds and S 2 ft at 16 seconds.
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 10 seconds and S 2 ft at 16 seconds.
Thu night..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 15 seconds. 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 11 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Fri 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 12 seconds and S 3 ft at 15 seconds. Patchy fog after midnight.
Sat..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 12 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Sat 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 11 seconds and S 3 ft at 14 seconds. Patchy fog after midnight.
Sun..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
Mon..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
PZZ600 817 Pm Pdt Wed Aug 16 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...a 1028 mb high was 700 nm W of eureka...and a 1008 mb low was near las vegas.

7 Day Forecast for Marine Location Near Hacienda Heights, CA
   Hourly   EDIT   Help
location: 34, -118     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 170317
afdlox
area forecast discussion
national weather service los angeles oxnard ca
817 pm pdt Wed aug 16 2017

Synopsis
Night through morning low clouds and fog will continue through the
period. Weaker onshore breezes and a shallower marine layer will
bring a few degrees of warming through Saturday, even though
temperatures will remain a bit below normal in most areas. Another
weak trough will develop Sunday which will deepen the marine
layer and cool temperatures.

Short term (wed-sat)
high temperatures trended up generally 4-9 degrees today as cloud
coverage scoured out earlier today compared to yesterday. Another
reverse clearing scenario that occurred yesterday did not pan out
today as the moist or deep marine layer went from 3500 ft to
around 1500 ft by this afternoon. Latest satellite imagery
indicated clear skies across the entire forecast area except for
some patchy low clouds across the south bay of la county. Low
clouds are expected to redevelop later tonight into the overnight
hours. With the latest amdar soundings around lax lower then
originally anticipated for tonight, will back off on some valley
low cloud coverage... Especially pulling it out of the santa
clarita valley and interior slo county valleys except for the
salinas river valley. Still expect low clouds to reach the san
gabriel and san fernando valleys as well as the santa ynez valley
overnight into Thu morning.

Synoptically, the broad upper level trough that was persisting
over much of california the past few days has begun to breakdown
and push to the east. Meanwhile, a strong upper ridge located
just off the california coast will begin to nudge eastward over
the region. Heights and thickness lvls will continue to be on the
rise. Expect h5 to be around 590 dm over much of the region
tomorrow afternoon. Also, the combination of a more shallow marine
layer and weaker onshore flow will allow high temps to continue
to trend upward. 950 mb temps really climb across the interior as
weak north to northeasterly flow is expected across the antelope
valley and adjacent mountains. Therefore highs are expected to
jump up to the mid to upper 90s across the antelope valley. Highs
will be around normal for this time of year by Thursday. Warmest
valley locations around the forecast areas should reach around 90
degrees tomorrow. Coastal areas will remain very mild with highs
up a degree or two for the most part. Expect low clouds to scour
out much sooner tomorrow possibly lingering along some beach
locations into the afternoon.

For Friday, the upper ridge will continue to strengthen across
much of california. Boundary layer temps continue to trend higher.

Onshore flow will continue to be weaker. Expect night through
morning low clouds to continue across most coastal areas and into
a few coastal valleys including the santa ynez, san gabriel and
san fernando valleys. High will be up another 2-4 degrees Friday.

Warmest valleys reaching the mid 90s while the antelope valley
reach the supper 90s. Possibly reaching 100 degrees in a few
spots.

By Saturday a weak upper trough begins to nose down from northern
cal on the eastern peripheral of the upper high over the eastern
pac. H5 around 588dm while thickness and boundary layer temps also
show a slight decrease. Onshore winds should be about the same
Saturday so expecting only a slight decrease in temps or about the
same as Friday. Once again expect night through morning low clouds
across most coastal areas and into some coastal valleys.

***from previous discussion***

Long term (sun-wed)
another weak trough with a semi-closed upper low off the central
coast will develop Sun Mon which will deepen the marine lyr and
cool temps a few degrees, especially inland. Guidance still seems
a bit warm for Monday and Tuesday given the upper pattern and what
should be a healthy marine lyr but held fairly close to mos
guidance for now. Perhaps a little warming around mid week as the
trough lifts out but probably not enough to even notice.

Aviation 17 0015z.

At 2330z, the marine layer depth was around 1900 ft deep at klax.

The top of the marine inversion was around 3600 ft with a
temperature near 19 degrees celsius.

Moderate confidence with 00z tafs in respect to cig categories and timing
of return of marine layer this evening... With lower confidence
for areas S of point conception. The marine layer should shrink at
least up to 1000 ft by Thu morning. Expect MVFR cigs. 50% chance
for ifr CIGS for kbur, kvny initially but should move up to MVFR
conds after 14z. Expect low clouds to scour out an hour to two
hours sooner compared to this morning. For areas N of point
conception fairly good confidence for ifr CIGS initially then
becoming MVFR by 14-16z Thu morning. 30% chance will stay ifr
until CIGS scour out.

Klax... Moderate confidence with 00z taf. ExpectVFR conds through
04z then MVFR conds are expected to return between 04-06z
tonight. 40% chance that CIGS could develop after 08z. CIGS should
scour out an hour earlier than the last two days.

Kbur... Moderte confidence with 00z taf. ExpectVFR conds through
08-10z. Moderate confidence for ifr CIGS to develop initially then
becming MVFR after 14z. Stratus should scour out + - 1 hour from
00z taf.

Marine 16 330 pm.

Moderate to high confidence in the current forecast. Winds not
expected to reach SCA levels overnight. However there is a 40%
chance that the outer waters from point conception to san nicolas
island, including the western portion of the santa cruz islands,
could experience local gusts to 25 kt during the evening. There is
a 10% chance of SCA gusts over the far western portion of the
santa barbara channel this evening. Otherwise winds should remain
below SCA levels through the forecast period.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (sat-wed)
no significant hazards expected.

Public... Kaplan mw
aviation... Kaplan
marine... Smith
synopsis... B
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
PSXC1 20 mi43 min WNW 5.1 G 8
PRJC1 21 mi43 min NNW 4.1 G 5.1
PFXC1 21 mi43 min NNW 6 G 8 68°F
BAXC1 21 mi43 min NW 8 G 8.9
PXAC1 22 mi43 min NW 5.1 G 6
46256 23 mi51 min 70°F4 ft
AGXC1 24 mi43 min WSW 2.9 G 4.1 68°F 1014.5 hPa (+1.2)
OHBC1 - 9410660 - Los Angeles, CA 24 mi43 min 70°F1014.6 hPa (+1.2)
ICAC1 - 9410840 - Santa Monica Pier 27 mi43 min SW 5.1 G 6 67°F 72°F1014.6 hPa (+0.9)
46222 - San Pedro, CA (092) 31 mi43 min 69°F3 ft
46253 31 mi43 min 71°F4 ft
46221 - Santa Monica Bay, CA (028) 35 mi43 min 67°F3 ft

Wind History for Los Angeles Pier S, CA
(wind in knots)    EDIT      (on/off)   Help
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
9
PM
10
PM
Last
24hr
NE7
NE5
SE6
SE7
SE6
SE6
E5
G8
E7
G10
E7
G11
E9
E7
SE8
G11
SE8
G13
SW9
SW9
S10
G13
SW6
G12
SW10
G13
NW4
G9
NW9
NW8
G11
NW5
NW5
G8
1 day
ago
W1
SW7
G10
SW7
S1
G6
SE3
SW3
G6
SW3
S2
G5
S4
S3
S5
G8
S8
S8
S8
G11
S10
G13
S9
G12
SW10
G13
S6
G13
S8
S6
G9
SE5
SE4
G7
E6
E7
2 days
ago
S2
S4
S5
S2
S6
S5
S9
S10
S8
G12
S8
G11
S9
G12
S6
G9
S5
G8
NW5
G9
NW7
G11
W4
G9
NW5
W3
G6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
El Monte, CA6 mi2.8 hrsSSW 710.00 miFair72°F59°F65%1014.2 hPa
Fullerton, Fullerton Municipal Airport, CA9 mi50 minVar 410.00 miFair69°F62°F78%1014 hPa
Long Beach, Long Beach Airport, CA14 mi50 minWNW 810.00 miFair68°F61°F78%1014.3 hPa
Brackett Field Airport, CA14 mi1.9 hrsW 910.00 miFair68°F57°F69%1015.2 hPa
Los Alamitos Army Airfield, CA15 mi45 minWNW 610.00 miFair67°F60°F78%1014.5 hPa
Los Angeles / USC Campus Downtown, CA15 mi56 minVar 310.00 miFair68°F60°F76%1014.1 hPa
Hawthorne, Hawthorne Municipal Airport, CA19 mi50 minWSW 810.00 miFair67°F61°F81%1014.5 hPa
Chino, Chino Airport, CA19 mi50 minW 58.00 miFair68°F59°F73%1014.4 hPa
Los Angeles, Los Angeles International Airport, CA22 mi50 minW 910.00 miFair67°F62°F84%1014.2 hPa
Corona Airport, CA22 mi47 minW 710.00 miFair69°F60°F73%1015.2 hPa
Ontario International Airport, CA22 mi50 minWSW 1010.00 miFair69°F59°F70%1013.5 hPa
Torrance, Zamperini Field Airport, CA22 mi2.9 hrsWNW 1110.00 miA Few Clouds66°F60°F83%1013.5 hPa
John Wayne-Orange County Airport, CA23 mi50 minN 010.00 miFair68°F62°F81%1014.3 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi52 minWSW 410.00 miFair67°F62°F84%1014.3 hPa
Burbank - Bob Hope Airport, CA24 mi50 minS 410.00 mi69°F57°F66%1013.3 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----------------------CalmCalmCalmSW4SE4CalmSE4W7--6SW7SW7SW7
1 day ago----------------------SW4SE3CalmSW3S5S5CalmSW3S8--SW10S11S10
2 days ago------------------------CalmS6S6SW4S6S7S12
G19
S11
G14
SW9SW6SW5SW7

Tide / Current Tables for Long Beach, Inner Harbor, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Long Beach
Click for Map
Thu -- 12:59 AM PDT     0.15 feet Low Tide
Thu -- 01:58 AM PDT     Moonrise
Thu -- 06:16 AM PDT     Sunrise
Thu -- 07:28 AM PDT     3.71 feet High Tide
Thu -- 12:13 PM PDT     2.24 feet Low Tide
Thu -- 04:18 PM PDT     Moonset
Thu -- 06:34 PM PDT     5.93 feet High Tide
Thu -- 07:36 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.20.411.82.73.33.73.73.42.92.52.22.42.83.64.55.35.85.95.44.43.11.8

Tide / Current Tables for Long Beach, Outer Harbor, Pier A, California
   EDIT      (on/off)   Help   One Week of Data
Long Beach
Click for Map
Thu -- 01:02 AM PDT     0.15 feet Low Tide
Thu -- 01:58 AM PDT     Moonrise
Thu -- 06:16 AM PDT     Sunrise
Thu -- 07:27 AM PDT     3.71 feet High Tide
Thu -- 12:16 PM PDT     2.24 feet Low Tide
Thu -- 04:18 PM PDT     Moonset
Thu -- 06:33 PM PDT     5.93 feet High Tide
Thu -- 07:36 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.20.411.82.73.33.73.73.42.92.52.22.32.83.64.55.35.85.95.44.43.11.8

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 (1,6,7,8)
      (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.