Monday, June25, 2018 L-36.com


Marine Weather and Tides
Hermosa Beach, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:43AMSunset 8:09PM Monday June 25, 2018 1:02 AM PDT (08:02 UTC) Moonrise 6:06PMMoonset 4:03AM Illumination 90% Phase: Waxing Gibbous; Moon at 12 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- 821 Pm Pdt Sun Jun 24 2018
Tonight..S winds 5 to 10 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 15 seconds.
Mon..Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 14 seconds.
Mon night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell nw 2 ft at 9 seconds and S 2 ft at 15 seconds. Patchy fog.
Tue..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 14 seconds. Patchy fog in the morning.
Tue 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 to 3 ft at 8 seconds and S 2 ft at 14 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 14 seconds. Patchy fog in the morning.
Wed night..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 4 ft.
Thu..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog.
Fri..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog.
PZZ600 821 Pm Pdt Sun Jun 24 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 02z...or 7 pm pdt...a 1038 mb high was located 1300 nm west of eureka california and a 1010 mb low pressure was located over interior california.

7 Day Forecast for Marine Location Near Hermosa Beach, CA
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location: 33.85, -118.4     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 250654
afdlox
area forecast discussion
national weather service los angeles oxnard ca
1154 pm pdt Sun jun 24 2018
new aviation

Synopsis 24 256 pm.

Afternoon temperatures will warm slightly through mid week then
cool slightly into the weekend. Overnight and morning low clouds
will continue through the week.

Short term (sun-wed) 24 858 pm.

Ridging aloft is firmly in place across the area judging by the
latest satellite imagery. The latest amdar soundings from klax
indicate the marine layer depth has thinned by 500 feet at klax
and onshore pressure gradients are weakening as previously
surmised. Subsiding air aloft with the high pressure system will
press down on top of the marine layer and continue to weaken
onshore pressure gradients into Monday. A warming trend will
develop through Monday, warmest across the valleys and interior
sections. The exception could be for most of the central coast as
the southeast low-level flow that has created downslope warming
will subside and allow for cooler marine air to push into the
central coast Monday.

No updates are planned at this time.

*** from previous discussion ***
slight warming trend to continue into Tuesday before leveling off
or cooling slightly Wed with increasing west east gradients.

Better chance of a more complete coastal clearing those days as a
little north flow sets up in the afternoons, especially Wednesday.

Long term (thu-sun) 24 135 pm.

The ridge aloft will shift east Thursday as a trough pushes
onshore along the west coast. This will bring cooling to most
areas. Friday will be a mixed bag of temperature trends with
slo sb counties warming while la ventura counties cool slightly
with the trough axis just passing through there by evening.

Possibly some low grade sundowner winds Thursday and Friday
nights. Not as much confidence in the weekend forecast as the
ecmwf is faster building the ridge in from the west and warmer.

Probably not a huge difference either way though and of minimal
impact.

Aviation 25 0653z.

At 22z, the marine layer depth was around 1700 feet deep at klax.

The top of the inversion was around 4000 feet with a temperature
around 22 degrees celsius.

High confidence in 06z tafs for kpmd and kwjf with moderate
confidence elsewhere due to uncertainty in timing and flight
category of low CIGS vsbys. Flight category may be one lower at
times through 20z. Timing of flight category changes should be
generally within two hours. There is a 20 percent chance thatVFR
conds prevail at kprb.

Klax... Moderate confidence in 06z taf. There is a 20 percent
chance of ifr CIGS vsbys through 14z.VFR CIGS vsbys expected to
return between 16z and 19z.

Kbur... Moderate confidence in 06z taf. There is a 40 percent
chance of ifr CIGS vsbys through 14z.VFR CIGS vsbys expected to
return between 16z and 18z.

Marine 24 753 pm.

For the outer waters... Conditions will remain below SCA level
through Monday night. There is a 40% chance of SCA conditions
developing Tuesday afternoon and night, and a 60% chance by
Wednesday night through Friday, with a 30% chance of gale force
gusts Thursday into Friday.

For the inner waters north of point sal... Conditions will remain
below SCA levels through Wednesday then a 40% chance of sca
conditions Thursday into Friday.

For the inner waters south of point conception... There will be a
40% chance of SCA conditions Thursday and Friday across the
western santa barbara channel, otherwise conditions will remain
below SCA criteria.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (wed-sun)
No significant hazards expected.

Public... Hall mw
aviation... Munroe
marine... Smith
synopsis... Kj
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PXAC1 9 mi63 min SSW 1.9 G 2.9
BAXC1 10 mi45 min SSE 7 G 8.9
OHBC1 - 9410660 - Los Angeles, CA 11 mi51 min 67°F1014.2 hPa
PSXC1 11 mi45 min SSE 5.1 G 7
PFDC1 12 mi45 min ESE 6 G 7
PFXC1 12 mi45 min SSE 7 G 8 64°F
46221 - Santa Monica Bay, CA (028) 12 mi63 min 67°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 12 mi51 min NW 1.9 G 5.1 63°F 68°F1014.3 hPa
AGXC1 12 mi45 min SSE 8 G 8 63°F 1014.2 hPa
PRJC1 14 mi45 min S 5.1 G 6
46256 15 mi63 min 66°F4 ft
46222 - San Pedro, CA (092) 17 mi63 min 66°F2 ft
46253 22 mi63 min 67°F3 ft
46262 34 mi63 min 65°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi43 min SW 3.9 G 5.8 63°F 65°F1013.9 hPa60°F

Wind History for Los Angeles Berth 161,
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA6 mi70 minSW 610.00 miMostly Cloudy64°F57°F78%1013.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA6 mi70 minWSW 310.00 miOvercast64°F57°F81%1014 hPa
Los Angeles / USC Campus Downtown, CA13 mi76 minN 010.00 miOvercast65°F57°F78%1013.6 hPa
Long Beach, Long Beach Airport, CA13 mi70 minSSE 510.00 miFair64°F57°F81%1014 hPa
Santa Monica, Santa Monica Municipal Airport, CA13 mi72 minWSW 410.00 miOvercast63°F57°F81%1013.8 hPa
Los Alamitos Army Airfield, CA19 mi65 minN 010.00 miFair61°F56°F84%1014.5 hPa
Fullerton, Fullerton Municipal Airport, CA22 mi70 minSSW 410.00 miMostly Cloudy63°F57°F81%1013.7 hPa
Burbank - Bob Hope Airport, CA24 mi70 minS 410.00 miFair61°F59°F93%1012.7 hPa

Wind History from TOA (wind in knots)
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Last 24hr--SE13SE10----------------------E8E7E8E8E8SE5SE5E8SE11SE5
1 day agoW15W13W12--------------------554E9E9SE9E11SE14SE11
G17
E9E10
2 days agoW12W12--------------------------------W6W11W11W16W17W15

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Mon -- 03:01 AM PDT     -0.23 feet Low Tide
Mon -- 04:02 AM PDT     Moonset
Mon -- 05:44 AM PDT     Sunrise
Mon -- 09:20 AM PDT     3.54 feet High Tide
Mon -- 02:05 PM PDT     1.97 feet Low Tide
Mon -- 06:05 PM PDT     Moonrise
Mon -- 08:08 PM PDT     Sunset
Mon -- 08:28 PM PDT     5.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
20.90.1-0.200.71.62.53.23.53.53.12.62.222.12.73.54.45.25.75.75.14

Tide / Current Tables for Los Angeles Harbor, Mormon Island, California
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Los Angeles Harbor
Click for Map
Mon -- 02:57 AM PDT     -0.22 feet Low Tide
Mon -- 04:02 AM PDT     Moonset
Mon -- 05:44 AM PDT     Sunrise
Mon -- 09:16 AM PDT     3.61 feet High Tide
Mon -- 02:01 PM PDT     1.95 feet Low Tide
Mon -- 06:04 PM PDT     Moonrise
Mon -- 08:07 PM PDT     Sunset
Mon -- 08:23 PM PDT     5.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
20.80-0.20.10.81.72.63.33.63.53.12.62.11.92.12.73.64.65.45.95.85.24.1

Weather Map and Satellite Images
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wmap_P
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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (4,6,7,8)
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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.