Thursday, July20, 2017 L-36.com


Marine Weather and Tides
Midway City, 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 8:01PM Thursday July 20, 2017 7:31 PM PDT (02:31 UTC) Moonrise 3:12AMMoonset 5:28PM Illumination 7% Phase: Waning Crescent; Moon at 27 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- 218 Pm Pdt Thu Jul 20 2017
Tonight..W winds 10 to 15 kt...becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 3 ft at 14 seconds. Patchy fog.
Fri..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 8 seconds and S 2 ft at 12 seconds. Patchy fog in the morning.
Fri night..W winds 10 to 15 kt...becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 3 ft at 8 seconds and S 2 ft at 16 seconds. Patchy fog.
Sat..Winds variable 10 kt or less...becoming sw 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 15 seconds. Patchy fog in the morning.
Sat night..W winds 10 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.
Sun..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 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. W swell 1 to 2 ft at 8 seconds. S swell 1 to 2 ft. Patchy fog after midnight.
Mon..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 1 to 2 ft. Patchy fog.
Tue..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 1 to 2 ft. Patchy fog.
PZZ600 218 Pm Pdt Thu Jul 20 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 2 pm pdt...a 1026 mb surface high was 600 nm miles nw of point conception and a 1007 mb thermal low was near las vegas. Light to moderate west to northwest flow across the coastal waters will continue through Friday night then gradually weaken through the weekend.

7 Day Forecast for Marine Location Near Midway City, CA
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location: 33.74, -118     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 202024
afdsgx
area forecast discussion
national weather service san diego ca
125 pm pdt Thu jul 20 2017

Synopsis
A building ridge of high pressure over the great basin will bring
seasonally hot summer-like weather through the weekend. A weak surge
of monsoonal moisture early next week may trigger a few afternoon
thunderstorms over the mountains Monday.

Discussion For extreme southwestern california including orange...

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

scattered small cumulus bubbled up over mountains this afternoon,
with the greatest coverage and vertical growth over southern san
diego county where brief light showers formed around 1 pm. It was
mostly clear elsewhere with a drier, more stable airmass moving in
from the northwest. Precipitable water values are about a half-inch
lower than yesterday. The pw on the 12z nkx sounding was 1.51" this
morning compared to 2.07" yesterday morning. A narrow layer of
midlevel moisture between 600-400 mb was enough to support the high-
based convection over southern san diego county this afternoon.

High pressure building over the great basin Friday will bring dry
and seasonally hot weather through the weekend with temperatures 2-4
degrees above average in most areas.

On Monday and Tuesday the ridge drifts east over utah and colorado
setting up weak southeasterly monsoon return flow across arizona and
into socal. This will not be a major moisture surge, but perhaps
enough for isolated afternoon convection over the mountains early
next week.

Wednesday through Friday: a weak trough just off the ca coast
battles for position with a massive upper ridge over the southern
plains. This pattern does not favor strong monsoonal flow into
southern california, so convection will be suppressed here for the
latter half of the week.

Aviation
202002z... Coast valleys... Through 21 0000 utc, p6sm vis and sct-few
clouds AOA 10000 ft msl. 21 0000-1400 utc, stratus re-developing and
moving 15-20 sm inland, with bases around 1000-1500 ft msl, tops
around 1700-2000 ft msl and local vis 3-5 sm. Forecast marine layer
inversion strength at 21 1200 utc of 7 deg c. Elsewhere, p6sm vis
with few-sct clouds AOA 10000 ft msl. Clearing of stratus during the
21 1500-1800 utc time-frame.

Mountains deserts... Tcu CU with isol -shra and bases 8000-12000 ft
msl developing over the san diego county mountains during through
21 0100 utc time-frame. Otherwise, sct-bkn clouds AOA 10000 ft msl
will continue through this afternoon, becoming few-sct tonight with
prevailing p6sm vis through Friday morning.

Marine
No hazardous marine weather is expected through Tuesday.

Beaches
High tides will reach near or above 7 feet during the mid-to-late
evening hours each day Friday through Sunday. This could result in
minor tidal overflow at low-lying beach areas during times of high
tide. A beach hazards statement has been issued.

Skywarn
Skywarn activation will not be needed Friday.

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

Public... Moede
aviation marine... Harrison


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 10 mi55 min WSW 16 G 18
PFXC1 11 mi55 min SW 8 G 8.9 77°F
46256 11 mi39 min 73°F3 ft
PSXC1 12 mi55 min NNW 8 G 9.9
46253 15 mi61 min 71°F3 ft
OHBC1 - 9410660 - Los Angeles, CA 15 mi55 min 70°F1013.3 hPa
46222 - San Pedro, CA (092) 19 mi61 min 72°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 32 mi55 min WSW 13 G 14 68°F 70°F1013.6 hPa
46221 - Santa Monica Bay, CA (028) 35 mi61 min 72°F4 ft
46242 - Camp Pendleton Nearshore, CA (043) 47 mi93 min 76°F3 ft
46224 - Oceanside Offshore, CA (045) 48 mi61 min 76°F4 ft

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, CA4 mi93 minS 810.00 miFair77°F64°F66%1013.1 hPa
John Wayne-Orange County Airport, CA8 mi38 minSSW 910.00 miA Few Clouds74°F64°F74%1013.5 hPa
Fullerton, Fullerton Municipal Airport, CA9 mi38 minSSW 710.00 miFair78°F64°F64%1012.8 hPa
Long Beach, Long Beach Airport, CA10 mi38 minNW 810.00 miFair77°F63°F62%1013.1 hPa
Torrance, Zamperini Field Airport, CA18 mi44 minWNW 1510.00 miClear72°F62°F73%1013.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA22 mi38 minW 1010.00 miFair73°F64°F74%1013.5 hPa
Los Angeles / USC Campus Downtown, CA24 mi44 minVar 310.00 miFair76°F60°F58%1012.9 hPa
El Monte, CA24 mi46 minSSW 710.00 miFair84°F59°F43%1013.5 hPa
Corona Airport, CA24 mi35 minW 1110.00 miFair81°F60°F49%1013.3 hPa

Wind History from SLI (wind in knots)
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Last 24hrSE4CalmS3SE3S4S3CalmCalmCalmCalmCalmCalmCalmS3S5SW5S8S9SW10SW10S10S11S8S8
1 day agoS5S5S4S4CalmS3S3S3CalmCalmNW3CalmCalmCalmCalmS8SW10S9S10SW10SW12
G17
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2 days agoS7SW5SW4SW3S3CalmCalmCalmCalmCalmCalmCalmCalmCalmS6SW6SW7SW8SW10SW10SW10S9S7S7

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Thu -- 03:08 AM PDT     -0.26 feet Low Tide
Thu -- 03:12 AM PDT     Moonrise
Thu -- 05:56 AM PDT     Sunrise
Thu -- 09:17 AM PDT     3.21 feet High Tide
Thu -- 02:18 PM PDT     1.10 feet Low Tide
Thu -- 05:27 PM PDT     Moonset
Thu -- 08:00 PM PDT     Sunset
Thu -- 08:31 PM PDT     5.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.80.80-0.3-0.10.51.42.22.93.23.12.721.51.11.21.82.73.94.95.55.554

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Thu -- 03:12 AM PDT     Moonrise
Thu -- 03:44 AM PDT     -0.09 feet Low Tide
Thu -- 05:56 AM PDT     Sunrise
Thu -- 08:41 AM PDT     2.13 feet High Tide
Thu -- 02:55 PM PDT     0.38 feet Low Tide
Thu -- 05:27 PM PDT     Moonset
Thu -- 07:55 PM PDT     3.63 feet High Tide
Thu -- 08:00 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.70.2-0-0.10.30.91.622.11.91.61.20.80.50.40.71.52.53.33.63.53.12.6

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (22,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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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.