Saturday, July22, 2017 L-36.com


Marine Weather and Tides
Lake Forest, 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 5:55AMSunset 7:58PM Saturday July 22, 2017 1:34 PM PDT (20:34 UTC) Moonrise 5:10AMMoonset 7:29PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 801 Am Pdt Sat Jul 22 2017
Today..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.
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 8 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
Sun..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 2 ft at 13 seconds. Patchy fog in the morning.
Sun night..W winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and S 2 ft at 13 seconds. Patchy fog after midnight.
Mon..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and S 2 ft at 12 seconds. Patchy fog in the morning.
Mon night..SW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 3 ft at 10 seconds and S 2 ft at 12 seconds.
Tue..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Wed..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 801 Am Pdt Sat Jul 22 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z...or 8 am pdt...1026 mb surface high pressure was centered 550 nm miles northwest of point conception and a 1005 mb thermal low was located over southern nevada.

7 Day Forecast for Marine Location Near Lake Forest, CA
   Hourly   EDIT   Help
location: 33.71, -117.7     debug


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 222029
afdsgx
area forecast discussion
national weather service san diego ca
128 pm pdt Sat jul 22 2017

Synopsis
Moisture will increase early this coming week ahead of an easterly
wave, bringing more clouds, higher humidity, and a chance of showers
and thunderstorms. Best chance for significant rain looks to be over
the mountains and deserts on Monday. The wave will weaken on
Tuesday, and the threat of thunderstorms will follow. Along the
coast... Onshore flow and the marine layer will continue mild
conditions with periods of nocturnal clouds and fog. Dry and warmer
for the latter half of the next week.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

early this afternoon... Satellite imagery showed the marine stratus
had cleared most of the coast and adjacent coastal waters, and other
than some small CU over the mts, skies were clear. Surface pressure
gradients were weak onshore and peak wind gust reports were under 25
mph in the wind-prone areas. A quick check at dewpoint reports from
mtn desert areas show they had increased today over yesterday in
northern portions of the cwa.

High pressure over the SW was keeping the weather hot and dry inland
today, while onshore flow held a moderately deep marine layer and
cooler weather over coastal areas. The high will weaken and shift
east through mon, as a weak trough develops along the ca coast, and
an easterly wave moves west over NW mexico. This will allow an e-se
flow to develop aloft over socal, along with an increase in
moisture, clouds, and a chance of showers and thunderstorms. The
best chance will be over the mts deserts, as the wave is forecast to
weaken and be dragged rapidly n-ne on Tuesday.

Wednesday through Friday... The upper high builds back toward the
four corners region and persists for the remainder of the week. Flow
aloft over socal is southerly and drier initially, then gradually
turns SE and moistens aloft. This should bring periods of high
clouds, but stability, and the lack of mid-level moisture should
keep a lid on any thunderstorm development until next weekend at the
earliest. Onshore flow prevails as well this period, so the marine
layer should keep coastal areas moderate while inland areas are
seasonably hot.

The main forecast problem for the next few days will be convection
timing, intensity and placement. For Sunday, it appears low-level
moisture increases sufficiently, along with daytime heating to drive
isolated TSTM development over the high terrain. Rain shafts could
be briefly heavy, but overall, precip should be limited due to the
number of cells that actually form.

Monday looks to be the most active day, as the weak easterly wave
approaches. The various hires model runs have waffled back and
forth bringing precip to the coast and beyond, and the ECMWF gfs
models are handling the track of the wave differently. Instability
parameters have been weak, but time height x-sections show quite a
dewpoint surge in the 500-300mb layer on mon, which could
destabilize the atmosphere enough for elevated convection. The
models have backed off on the rh in the 200-400mb layer, which
favors more heating on the mts to drive deeper diurnal convection
there in the afternoon. With all the uncertainty, low pops are in
the forecast all the way to the coastal waters on Monday, with
greater chances near the mts. Any heavy precip would most likley be
confined to the mts foothills where the risk of flash flooding will
be greatest.

By Tuesday... Moisture is decreasing and the wave has been absorbed
into the south flow aloft. Lingering moisture and daytime heating
could still ignite afternoon storms over the mts deserts. This is
supported by the 12z wrfems, which is GFS based, and the ECMWF looks
favorable as well, so pops continue into Tue evening.

Aviation
222000z... Coast valleys... Low clouds with bases around 1,200 ft msl
had cleared the coast for all areas excepted southern san diego
county, where a few patches were lingering along the beaches. Away
from the beaches, predominantly clear skies will continue through
03z Sunday, with light afternoon sea breezes. Low clouds with bases
near 1,200 ft msl will creep back into coastal areas around 03z
Sunday, and spread 20-25 miles inland over the orange and san diego
county valleys by 14z Sunday. The TAF sites should clear between 15z
and 17z on Sunday.

Mountains deserts... Mostly clear skies with unrestricted visibility
will continue through 18z Sunday.

Marine
There is a slight chance for thunderstorms Sunday night through
Monday. Lightning will be the primary threat, with any storms
potentially obscured by the marine layer low clouds. After Monday,
no hazardous marine weather is expected through Thursday.

Beaches
Evening high tides will be near 7 ft today and Sunday. This could
result in minor tidal overflow in low-lying beach areas, therefore a
beach hazard statement remains in effect through Sunday to account
for this possibility. Surf heights will be limited to 2-3 ft, and
this should limit the potential for tidal overflow to some degree.

There is a slight chance of thunderstorms at the beaches Sunday
night through Monday, with the best thunderstorm chances occurring
Monday morning.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... Beach hazards statement through Sunday evening for orange county
coastal areas-san diego county coastal areas.

Pz... None.

Public... Jad
aviation marine beaches... Albright


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
PRJC1 26 mi46 min SW 8.9 G 11
PFXC1 27 mi46 min SSW 11 G 12 74°F
46256 27 mi42 min 73°F3 ft
46253 27 mi34 min 69°F3 ft
PSXC1 28 mi46 min SSW 7 G 12
PFDC1 29 mi46 min S 8.9 G 11
BAXC1 29 mi46 min S 12 G 14
AGXC1 29 mi46 min SW 9.9 G 12 69°F 1013.2 hPa
PXAC1 30 mi46 min S 8.9 G 12
OHBC1 - 9410660 - Los Angeles, CA 30 mi46 min 71°F1013.4 hPa
46222 - San Pedro, CA (092) 33 mi34 min 72°F3 ft
46242 - Camp Pendleton Nearshore, CA (043) 37 mi96 min 76°F3 ft
46224 - Oceanside Offshore, CA (045) 39 mi64 min 75°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 47 mi52 min WSW 11 G 12 69°F 73°F1013.4 hPa

Wind History for Los Angeles Pier J, CA
(wind in knots)    EDIT      (on/off)   Help
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
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
Last
24hr
SW9
SW11
SW13
SW17
W17
W16
W12
W10
W6
SW6
SW6
SW5
S5
S4
SE5
G9
SE5
G8
E5
SE4
S2
E4
S4
S6
S5
S8
1 day
ago
SW8
SW10
SW10
SW14
SW17
W17
W16
W12
SW9
W6
SW6
SW6
SW5
G8
SE3
G6
S1
S1
SE1
G4
SE5
SE4
S3
E3
S4
S6
SW8
2 days
ago
SW7
SW8
SW10
SW13
SW16
W13
W9
W11
W7
SW2
SW6
SW5
SW3
SW5
SW5
S3
E2
SE8
SE3
SE5
S5
S5
SW4
SW7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA9 mi41 minSSW 1010.00 miA Few Clouds78°F64°F64%1012.5 hPa
Corona Airport, CA14 mi38 minW 1010.00 miFair89°F63°F42%1012.4 hPa
Chino, Chino Airport, CA18 mi41 minNW 710.00 miFair94°F63°F36%1011.7 hPa
Los Alamitos Army Airfield, CA19 mi96 minSSW 910.00 miFair79°F65°F65%1013.1 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi41 minS 510.00 miFair84°F66°F55%1012 hPa
Riverside Municipal Airport, CA21 mi41 minW 810.00 miFair93°F62°F36%1010.4 hPa

Wind History from SNA (wind in knots)
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
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
Last 24hrSW8SW8SW8SW7SW7SW8SW5SW5SW5SW5S4S6SE43E43Calm3E434CalmSW9SW10
1 day agoSW10
G15
SW9SW11SW11SW9SW9S85SW5S4S5S3E5SE5S3SE5E4E5CalmCalmS6S6S9S12
2 days agoS11S11SW10
G17
SW7SW8W56S8SW5S5SW4S3S4S3CalmCalmCalm3CalmCalmS55SW10S10

Tide / Current Tables for Newport Beach, Newport Bay Entrance, Corona del Mar, California (sub)
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Newport Beach
Click for Map
Sat -- 03:24 AM PDT     -1.29 feet Low Tide
Sat -- 05:10 AM PDT     Moonrise
Sat -- 05:57 AM PDT     Sunrise
Sat -- 09:50 AM PDT     4.31 feet High Tide
Sat -- 02:47 PM PDT     1.61 feet Low Tide
Sat -- 07:29 PM PDT     Moonset
Sat -- 07:58 PM PDT     Sunset
Sat -- 09:02 PM PDT     6.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.50.8-0.6-1.2-1.2-0.40.82.23.34.14.33.93.22.41.81.6234.35.66.56.96.65.5

Tide / Current Tables for Balboa Pier, Newport Beach, California
   EDIT      (on/off)   Help   One Week of Data
Balboa Pier
Click for Map
Sat -- 03:29 AM PDT     -1.24 feet Low Tide
Sat -- 05:11 AM PDT     Moonrise
Sat -- 05:57 AM PDT     Sunrise
Sat -- 09:45 AM PDT     4.27 feet High Tide
Sat -- 02:52 PM PDT     1.65 feet Low Tide
Sat -- 07:29 PM PDT     Moonset
Sat -- 07:58 PM PDT     Sunset
Sat -- 08:58 PM PDT     6.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.50.8-0.5-1.2-1.1-0.40.82.23.44.14.33.93.22.41.81.722.94.25.56.56.86.45.4

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 San Diego, CA (16,3,4,5)
      (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.