Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Irvine, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:47AMSunset 7:07PM Thursday March 23, 2017 1:10 AM PDT (08:10 UTC) Moonrise 3:58AMMoonset 2:49PM Illumination 19% 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
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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 856 Pm Pdt Wed Mar 22 2017
.small craft advisory in effect through Thursday afternoon...
Tonight..Western portion...w winds 20 to 30 kt. Elsewhere...w winds 15 to 25 kt. Combined seas 6 to 8 ft dominant period 13 seconds.
Thu..Western portion...nw winds 20 to 30 kt becoming 15 to 20 kt in the afternoon. Elsewhere...nw winds 5 to 10 kt becoming W 10 to 15 kt in the afternoon. Combined seas 6 to 8 ft dominant period 13 seconds.
Thu night..Western portion...nw winds 20 to 25 kt becoming 10 to 15 kt after midnight. Elsewhere...w winds 10 to 15 kt becoming variable 10 kt or less after midnight. Combined seas 4 to 6 ft dominant period 13 seconds...subsiding to 2 to 4 ft dominant period 13 seconds after midnight.
Fri..E winds 5 to 10 kt in the morning...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 11 seconds.
Fri night..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 1 to 2 ft at 11 seconds. Chance of showers.
Sat..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 2 to 3 ft. Chance of showers.
Sat night..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 2 to 4 ft.
Sun..W winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft.
Mon..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 3 to 5 ft.
PZZ600 856 Pm Pdt Wed Mar 22 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 pst...a 995 mb low was 900 nm W of portland...with a cold front trailing sw of the the low. A 1026 mb high was located around 700 nm W of point conception. The high will shift E through Fri. The cold front is expected to move through the coastal waters Fri night and Sat.

7 Day Forecast for Marine Location Near Irvine, CA
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location: 33.71, -117.76     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 230441 aaa
afdsgx
area forecast discussion
national weather service san diego ca
940 pm pdt Wed mar 22 2017

Synopsis
Scattered showers and thunderstorms will continue this evening as
low pressure moves through the region. Areas of fog will continue in
the mountains tonight, and gusty winds will continue on the desert
mountain slopes through Thursday. Fair weather will return by
Thursday afternoon and continue Friday, then a weak trough of low
pressure could bring a few showers Saturday. Another system could
bring a few showers next Monday or Tuesday. Temperatures will
average a little below normal through early next week.

Discussion For extreme southwestern california including orange...

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

Evening update...

a modest burst of convection has occurred the last few hours and
continues in the mountains ATTM as the upper trough moves through
the region and feeds on the residual instability. This activity will
likely continue this evening and then diminish after about 2 am. A
few thunderstorms in the san bernardino mountains where colder air
is in place could drop a quick couple of inches of new snow and
cause some slick mountain roads overnight as well mainly above 6000
feet. The trough moves on out by Thursday morning, to be replaced
with transitory ridging and a quieter weather day for socal. No
major changes to the ongoing forecast database this evening.

Previous forecast discussion issued earlier in the afternoon...

a few showers continued this afternoon, especially in san bernardino
county. Some lightning was upstream over santa barbara county as
well as about 300 miles wsw of san diego. As cold air moves in from
the west, instability will increase with surface based CAPE values
of up to 800 j/kg, so there could be an isolated thunderstorm over
our forecast area this afternoon/evening. The main vort MAX with the
low pressure trough will mostly go into northern baja, and its
southerly position will be the main reason for only modest precip
amounts here, mostly under 1/10 inch since Tuesday except local
amounts over one inch in the san bernardino county mountains. The
main trough will move through this evening, and enough moisture and
dynamics, including a 110-kt jet just to our south, should bring a
little increase in the precip, with san diego county likely
receiving more than areas further north. Precip should gradually end
late tonight and early Thursday. Additional precip amounts should be
mostly less than 1/4 inch west of the mountains, but with variable
amounts due to convection, and locally over one-half inch in the
mountains. Snow levels will lower to around 6000 feet tonight, but
only 1-2 inches will occur especially with the northern higher
mountains having less available moisture. Winds should gust around
50 mph on the normally wind-favored desert mountain slopes at times
through Thursday.

The trough will move to the southern rockies by Thursday night with
a weak ridge moving through so-cal. An open trough will move through
california Saturday with most of the moisture staying to our north,
so only light showers should occur here. After weak ridging again
Sunday, models are showing another trough from the northwest around
Monday or Tuesday, and a few showers were put in the afternoon
forecast package for Monday. GFS is much wetter than ecmwf. The
ridging will likely stay over the east pacific and not build into
california through at least the middle of next week, so temperatures
should stay mostly a little below normal through mid-week,
especially daytime maximums.

Aviation
230315z... Scattered showers and isolated tsra developing this
evening will continue through about 09z, then gradually taper off
through 15z. Sct-bkn cloud layers 2500-6000 ft msl along/west of the
mountains through Thursday morning. Higher terrain remaining
partially obscured in clouds/fog/precip. CIGS locally lowering to
1500 ft msl with 3-5 sm vis in heavier shra/tsra. After 15z, few-sct
clouds above 3000 ft msl and unrestricted vis.

Through 15z... West winds 20-30 kt with gusts 35-45 kt along the
ridges and desert slopes with mod-stg up/downdrafts and llws over
and east of the mountains. Winds gradually weakening during the day
Thursday.

Marine
A low pressure trough moving through the region will bring scattered
showers and a small chance of thunderstorms tonight. West-northwest
winds 20-25 kt with local gusts to 30 kt over the outer coastal
waters and combined seas near 10 ft will create hazardous boating
conditions. A small craft advisory remains effect for the coastal
waters through Thursday afternoon. Winds and seas will diminish by
Thursday evening.

Beaches
There is a small chance of thunderstorms at the beaches this
evening. Thunderstorm chances will end tonight.

Sgx watches/warnings/advisories
Ca... None.

Pz... Small craft advisory through 5 pm pdt Thursday 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... Jmb/maxwell
aviation/marine/beaches... Ss


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46256 23 mi49 min 60°F6 ft
PRJC1 23 mi41 min WNW 8.9 G 12
46253 24 mi41 min 60°F7 ft
PFXC1 24 mi41 min WNW 9.9 G 14 58°F 1015 hPa
PSXC1 25 mi41 min W 8 G 12
PFDC1 26 mi41 min W 7 G 11
BAXC1 26 mi41 min WNW 12 G 14
AGXC1 26 mi41 min WNW 12 G 14 58°F 1015.7 hPa
PXAC1 27 mi41 min NW 7 G 11
OHBC1 - 9410660 - Los Angeles, CA 27 mi41 min 61°F1015.6 hPa
46222 - San Pedro, CA (092) 30 mi52 min 61°F8 ft
46242 - Camp Pendleton Nearshore, CA (043) 38 mi73 min 61°F5 ft
46224 - Oceanside Offshore, CA (045) 40 mi41 min 62°F5 ft
ICAC1 - 9410840 - Santa Monica Pier 44 mi41 min NNW 4.1 G 5.1 58°F 62°F1015.9 hPa
46221 - Santa Monica Bay, CA (028) 47 mi41 min 60°F8 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Ana, John Wayne Airport-Orange County Airport, CA6 mi18 minVar 510.00 miA Few Clouds57°F48°F74%1016 hPa
Corona Airport, CA15 mi15 minWNW 610.00 miMostly Cloudy55°F46°F74%1017 hPa
Los Alamitos U. S. Army Airfield, CA16 mi73 minW 310.00 miFair54°F48°F83%1015.9 hPa
Fullerton, Fullerton Municipal Airport, CA16 mi18 minESE 310.00 miFair56°F48°F77%1015.4 hPa
Chino, Chino Airport, CA19 mi18 minWSW 58.00 miA Few Clouds53°F48°F83%1015.7 hPa
Long Beach, Long Beach Airport, CA22 mi18 minNW 510.00 miA Few Clouds57°F48°F72%1015.5 hPa
Riverside Municipal Airport, CA23 mi18 minN 010.00 miOvercast53°F50°F89%1014.5 hPa

Wind History from SNA (wind in knots)
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Last 24hrSE3E5CalmCalmCalmCalmCalmCalmW4SW7W7W10W10W8W12
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1 day agoCalmCalmS3NE3E53SW33CalmS7SW4SW6S6SW11SW73CalmSE4E3SE4SE6SE4E3E3
2 days agoSE3S4E4SE4E63S3CalmS4CalmSW73S4SW9SW8W74SW53SW3SW3W4CalmCalm

Tide / Current Tables for Newport Beach, Newport Bay Entrance, Corona del Mar, California (sub)
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Newport Beach
Click for Map
Thu -- 12:45 AM PDT     2.20 feet Low Tide
Thu -- 03:58 AM PDT     Moonrise
Thu -- 06:40 AM PDT     4.52 feet High Tide
Thu -- 06:50 AM PDT     Sunrise
Thu -- 01:39 PM PDT     -0.03 feet Low Tide
Thu -- 02:49 PM PDT     Moonset
Thu -- 07:05 PM PDT     Sunset
Thu -- 08:10 PM PDT     3.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.22.42.93.544.44.54.23.52.51.50.60.1-00.41.12.12.93.63.93.73.32.7

Tide / Current Tables for Balboa Pier, Newport Beach, California
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Balboa Pier
Click for Map
Thu -- 12:53 AM PDT     2.11 feet Low Tide
Thu -- 03:58 AM PDT     Moonrise
Thu -- 06:37 AM PDT     4.47 feet High Tide
Thu -- 06:50 AM PDT     Sunrise
Thu -- 01:44 PM PDT     0.01 feet Low Tide
Thu -- 02:49 PM PDT     Moonset
Thu -- 07:05 PM PDT     Sunset
Thu -- 08:06 PM PDT     3.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.22.12.32.83.444.44.44.13.42.51.50.70.100.41.122.93.63.83.73.22.6

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 (4,6,7,8)
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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.