Thursday, October19, 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 6:59AMSunset 6:13PM Thursday October 19, 2017 7:19 AM PDT (14:19 UTC) Moonrise 6:48AMMoonset 6:35PM Illumination 1% Phase: New Moon; 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
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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 226 Am Pdt Thu Oct 19 2017
.small craft advisory in effect from this afternoon through late tonight...
Today..NW winds 5 to 10 kt, becoming W 15 to 20 kt with gusts to 25 kt in the afternoon. Strongest western portion. Combined seas 4 to 5 ft dominant period 7 seconds.
Tonight..Western portion, W winds 15 to 20 kt with gusts to 25 kt. Eastern portion, W winds 5 to 15 kt. Combined seas 3 to 5 ft dominant period 14 seconds. Patchy drizzle after midnight.
Fri..Western portion, nw winds 15 to 20 kt with gusts to 25 kt, becoming W 20 to 30 kt in the afternoon. Elsewhere, nw winds 5 to 15 kt becoming W 15 to 20 kt in the afternoon. Combined seas 5 to 7 ft dominant period 8 seconds. Patchy drizzle in the morning.
Fri night..Western portion, nw winds 25 to 30 kt becoming 10 to 15 kt after midnight. Elsewhere, W winds 15 to 20 kt becoming N 10 to 15 kt after midnight. Combined seas 6 to 8 ft dominant period 17 seconds, subsiding to 4 to 6 ft dominant period 16 seconds after midnight.
Sat..From point mugu to santa Monica, N winds 15 to 20 kt becoming nw 10 to 15 kt in the afternoon. Elsewhere, N winds 5 to 10 kt becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 4 to 5 ft at 15 seconds, subsiding to 3 ft at 15 seconds in the afternoon.
Sat night..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 3 ft at 14 seconds.
Sun..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Mon..N winds 10 to 15 kt. Wind waves 1 to 3 ft. Mixed swell W 2 ft and S 2 ft.
PZZ600 226 Am Pdt Thu Oct 19 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z...or 2 am pdt...a 1021 mb high was located 600 nm west of point conception and a 1008 mb thermal low was near las vegas.

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 190952
afdsgx
area forecast discussion
national weather service san diego ca
252 am pdt Thu oct 19 2017

Synopsis
A deepening trough will bring cooling, with more widespread
marine layer clouds, and breezy conditions in the mountains and
deserts through Friday. Santa ana winds and a building ridge of
high pressure will bring significant warming and drying to the
region Saturday through Tuesday.

Discussion For extreme southwestern california including orange...

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

coastal low clouds are back with a vengeance this morning, having
already filled into the western valleys. Otherwise there were a
few high clouds moving in from the west. Low clouds should clear
inland by mid-morning, but may linger along parts of the coast
through the day.

A long wave trough currently around 500 mi off the pac NW coast
will gradually progress eastward today and Friday, bringing
continued cooling, a deepening marine layer, and breezy conditions
in the mountains and deserts. Another 5-10 degrees of cooling is
expected each day through Friday. As the southern fringes of the
trough axis moves through so cal, the marine layer will be
sufficiently deep to produce some drizzle or light rain from the
coastal mountain slopes westward late Thursday night through
Friday morning.

The weather changes dramatically on Saturday behind the departing
trough. Surface high pressure building over the great basin will
bring another round of offshore flows. Low clouds should be gone
by Saturday morning, and gusty northeast winds will develop
through and below the passes and canyons. Some warming will occur
west of the mountains due to downsloping winds, but cold air
advection from the north will keep temperatures in the mountains
and deserts a few degrees below normal.

For Sunday through Tuesday... An upper level high amplifying over
california will bring significant warming with highs as much as
15-25 degrees above normal Monday and Tuesday. Surface pressure
gradients relax slightly on Sunday for weaker winds, but
strengthen again Monday into Tuesday. Wind gusts of 35 to 50 mph
are possible below the favored passes and canyons in san
bernardino riverside orange counties, and around 25-40 mph along
the coastal slopes and foothills of san diego county. Both the
upper ridge and offshore flow begin to weaken on Wednesday, though
high temps will remain well above normal.

Aviation
190945z... Coast valleys... Low clouds will increase in coverage
through 15z, spreading up to 20 miles inland. Cloud bases are around
1000 ft msl and tops around 1600 ft msl. Reduced visibility of 1 sm
or less is possible near higher terrain. Clearing is expected
between 16z and 18z, with sct clouds AOA 20000 ft msl and light
winds between 18z today and 00z Friday. Low clouds will return to
the coast after 00z Friday, with bases near 2000 ft msl. Forecast
confidence is moderate for timing.

Mountains deserts... Sct clouds AOA 20000 ft msl, unrestricted
visibility, and light winds will continue through 22z. West winds
will increase after 22z, resulting in areas of llws and moderate
up downdrafts over and east of the mtns. Patchy bldu is also
possible in the desert areas. Kpsp and ktrm will see increasing nw
winds after 22z. Forecast confidence is high.

Marine
Northwest winds will increase to 15-25 kt this evening through
Friday, accompanied by combined seas of 5-9 ft. Highest seas and
strongest winds can be expected near and south of san clemente
island. Conditions will slowly improve on Saturday, with light winds
and calmer seas expected early next week.

Beaches
A 2-3 ft 14-16 second south southwest swell will continue to impact
beaches north of solana beach through today. This will produce
elevated surf of 3-5 ft with sets to 6 ft, along with strong rip and
longshore currents. A beach hazard statement remains in effect
through this afternoon. The south southwest swell will diminish
tonight, and be replaced by an elevated short period northwest swell
Friday and Saturday.

Fire weather
Santa ana winds are forecast to develop Saturday through at least
Wednesday, likely peaking Monday and Tuesday. Gusty northeast
winds of 15-25 mph gusting 30-40 mph are possible Saturday, then
weaken slightly for Sunday. For Monday and Tuesday, northeast
winds will be about 15-25 mph with gusts 35-50 mph. High
temperatures 15-25 degrees above normal and offshore flow will
result in daytime humidity at or below 10 percent Sunday through
Tuesday with little to no overnight recovery in the wind prone
areas. This will lead to critical fire weather conditions through
and below the mountain passes and canyons and along the coastal
slopes and foothills Saturday through at least Tuesday, with the
greatest and most widespread threat Monday and Tuesday.

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 this evening for orange county
coastal areas-san diego county coastal areas.

Pz... Small craft advisory for winds from 8 pm this evening to 1 am
pdt Saturday for coastal waters from san mateo point to the
mexican border and out to 30 nm-waters from san mateo point
to the mexican border extending 30 to 60 nm out including
san clemente island.

Public fire weather... Ss
aviation marine beaches... Pg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 10 mi50 min Calm G 1
46256 11 mi58 min 67°F4 ft
PFXC1 11 mi50 min Calm G 1 66°F
PSXC1 12 mi50 min Calm G 1.9
AGXC1 13 mi50 min Calm G 0 65°F 1012.3 hPa
PFDC1 13 mi50 min Calm G 0
BAXC1 13 mi50 min SSE 1.9 G 1.9
PXAC1 14 mi50 min Calm G 0
OHBC1 - 9410660 - Los Angeles, CA 15 mi50 min 68°F1012.4 hPa
46253 15 mi50 min 70°F4 ft
46222 - San Pedro, CA (092) 19 mi50 min 69°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 32 mi50 min ENE 4.1 G 6 66°F 68°F1012.5 hPa
46221 - Santa Monica Bay, CA (028) 35 mi50 min 67°F5 ft
46242 - Camp Pendleton Nearshore, CA (043) 47 mi82 min 69°F4 ft
46224 - Oceanside Offshore, CA (045) 48 mi50 min 70°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 mi82 minE 610.00 miMostly Cloudy67°F61°F84%1012.5 hPa
John Wayne-Orange County Airport, CA8 mi27 minESE 510.00 miMostly Cloudy67°F61°F81%1011.9 hPa
Fullerton, Fullerton Municipal Airport, CA9 mi27 minE 59.00 miOvercast68°F61°F78%1012 hPa
Long Beach, Long Beach Airport, CA10 mi27 minE 58.00 miOvercast67°F62°F84%1012.1 hPa
Torrance, Zamperini Field Airport, CA18 mi33 minN 07.00 miMostly Cloudy59°F55°F88%1012.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA22 mi27 minN 09.00 miOvercast69°F62°F78%1012.2 hPa
Los Angeles / USC Campus Downtown, CA24 mi33 minVar 38.00 miOvercast69°F61°F76%1011.9 hPa
Corona Airport, CA24 mi24 minN 00.25 miFog52°F51°F97%1014 hPa

Wind History from SLI (wind in knots)
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Last 24hrCalmSE5SE6CalmSW9S8SW9S7S7S5S6S7S5SE3SE3CalmCalmCalmCalmCalmCalmCalmE6E4
1 day agoCalmCalmNE4CalmS3SW9SW9W6W8S6S4CalmCalmCalmCalmSE4SE3SE3CalmE3E3CalmCalmCalm
2 days agoCalmCalmN3CalmN3SW6S7S8W9W9W8W6CalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmCalm

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Thu -- 04:28 AM PDT     0.48 feet Low Tide
Thu -- 06:47 AM PDT     Moonrise
Thu -- 07:00 AM PDT     Sunrise
Thu -- 10:29 AM PDT     4.91 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 05:08 PM PDT     0.11 feet Low Tide
Thu -- 06:13 PM PDT     Sunset
Thu -- 06:35 PM PDT     Moonset
Thu -- 11:02 PM PDT     4.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.72.81.810.50.61.12.13.34.34.84.84.33.42.31.20.40.10.3123.13.84.1

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Thu -- 05:05 AM PDT     0.15 feet Low Tide
Thu -- 06:47 AM PDT     Moonrise
Thu -- 07:00 AM PDT     Sunrise
Thu -- 09:53 AM PDT     3.18 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 05:44 PM PDT     0.04 feet Low Tide
Thu -- 06:12 PM PDT     Sunset
Thu -- 06:35 PM PDT     Moonset
Thu -- 10:27 PM PDT     2.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.71.20.70.30.20.41.22.12.93.232.72.11.50.90.40.10.10.51.32.12.62.6

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 (10,2,3,4)
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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.