Saturday, December14, 2019
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Marine Weather and Tides
Lake Forest, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:45AMSunset 4:45PM Saturday December 14, 2019 6:46 PM PST (02:46 UTC) Moonrise 8:24PMMoonset 10:06AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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- 215 Pm Pst Sat Dec 14 2019
.gale warning in effect through late tonight...
Tonight..Western portion, nw winds 20 to 30 kt with gusts to 35 kt. Elsewhere, nw winds 15 to 25 kt becoming N 10 to 15 kt after midnight. Combined seas 8 to 11 ft dominant period 11 seconds.
Sun..NW to N winds 15 to 25 kt with gusts to 30 kt, becoming 10 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 5 to 7 ft dominant period 9 seconds, subsiding to 4 to 5 ft dominant period 8 seconds in the afternoon.
Sun night..NW to N winds 15 to 20 kt with local gusts to 25 kt, becoming ne 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 3 to 5 ft at 8 seconds.
Mon..From point mugu to santa Monica and S of palos verdes, ne winds 15 to 25 kt becoming 10 to 15 kt in the afternoon. Elsewhere, ne winds 5 to 10 kt becoming se in the afternoon. Wind waves 2 to 4 ft. W swell 2 to 3 ft at 13 seconds.
Mon night..NE winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 2 to 4 ft at 12 seconds.
Tue..NE winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 2 ft at 15 seconds.
Tue night..E winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 1 to 3 ft. W swell 2 to 3 ft at 15 seconds.
Wed..NE winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft. Slight chance of rain.
Thu..N winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
PZZ600 215 Pm Pst Sat Dec 14 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 22z or 2 pm pst, a 1029 mb surface high was about 1000 nm west of point conception. A 1006 mb surface low was near the four corners, extending west to a 1008 mb surface trough near the central california-nevada border. Moderate to strong west to northwest flow across coastal waters will continue through late tonight.


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


Area Discussion for - San Diego, CA
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FXUS66 KSGX 142157 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 155 PM PST SAT Dec 14 2019

SYNOPSIS. Cool and breezy tonight with a few light showers from a passing trough, mainly in the valleys, foothills and on the west facing mountain slopes. Sunday will be dry and cool behind the trough. A dry Santa Ana pattern Monday and Tuesday will bring generally clear skies to the region, along with gusty northeast winds to the mountains, foothills and inland valleys. A weak trough will bring a chance for light showers late Wednesday into Thursday.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

Skies this afternoon were mostly cloudy west of the mountains, except for southern San Diego County where the clouds cleared early in the afternoon. The spotty light rain and drizzle from earlier this morning generated rain totals of a few hundredths of an inch at Fallbrook (0.02") and Ontario (0.04") to a max of 0.08" at the Deer Creek Dam in the foothills of the San Bernardino Mountains.

This afternoon and tonight we will transition from the light stratiform precipiation regime this morning to a more convective, showery pattern as a weak shortwave races across SoCal. Dynamics are weak with this feature, but the onshore pressure gradients and the low level winds are strong, so orographic lift will be the driving force for the most widespread showers over the west/southwest facing mountain slopes. Precip amts in these areas could be as high as 0.10"-0.20" in the favored upslope areas, with lesser amounts of 0.01-0.10" in the coastal and valley areas that actually do see any showers.

Both the mountains above 4,500 feet and the deserts will be dry. The biggest concerns there will be the strong winds. A Wind Advisory is in effect for these areas through 10 AM Sunday for winds of 20-30 mph gusting to 45-55 mph. Winds over the coastal waters will gust as high as 30 kt, and a Small Craft Advisory is in effect until 4 PM Sunday. Big surf will pound the shoreline where a High Surf Advisory is in effect for waves of 5-10 feet. At 1 PM, Mission Beach reported surf of 10 feet.

Sunday will be a cool day with clearing skies behind the trough. Any lingering early morning showers over the San Diego County mountains will end by midday. Surface high pressure will build over the Great Basin Monday. The pressure gradients associated with the 1040 mb high will be strong enough for a modestly strong offshore winds in the mountain passes into the inland valleys. The upper support is weak which will limit the wind strength. The mountains and deserts will be a little colder Monday and Tuesday, while the coastal zones and western valleys will benefit from warm downslope flow and see highs near 70 degrees both days.

Another shortwave digs down the coast Wednesday and Thursday, with successive model runs trending weaker and farther north with this system. It will still be close enough for a chance of showers Wednesday night into Thursday. Weak ridging Thursday night will bring mild, dry weather Friday into Saturday.

AVIATION. 142130Z . Coast and Valleys . BKN-OVC015-025 tops 050 through 15Z Sunday with scattered -SHRA. Conditions gradually improving between 18-20Z Sunday across the area. Gusty winds during this period with surface gusts up to 25 kt.

Mountains/Deserts . West facing mountain slopes obscured in clouds and fog through 15Z Sunday with scattered -SHRA. Ridgetops and eastern slopes . mostly clear with unrestricted vis through tonight. Gusty west winds in the mountains/passes and over the desert slopes with gusts to 50 kt and strong up/downdrafts and LLWS.

MARINE. A large, long period west-northwest swell of 15-17 seconds will combine with a fresh 7-9 second swell to produce combined seas of 9 to 12 ft through Sunday. West northwest winds will increase over the outer coastal waters, peaking tonight into Sunday morning with gusts 25 to 30 knots, and locally to 35 knots near San Clemente Island. A Small Craft Advisory is in effect for all of the coastal waters through 4 PM Sunday.

BEACHES. High Surf Advisory in effect through Sunday afternoon for 5-10 ft surf, highest in San Diego County. The pounding surf will contribute to areas of minor beach erosion during the 6 ft+ morning high tides.

SKYWARN. Skywarn activation will not be needed this weekend.

SGX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory until 10 AM PST Sunday for Apple and Lucerne Valleys- Coachella Valley-Riverside County Mountains-San Bernardino County Mountains-San Diego County Deserts-San Diego County Mountains-San Gorgonio Pass Near Banning.

High Surf Advisory until 4 PM PST Sunday for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ . Small Craft Advisory until 4 PM PST Sunday 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 . Moede AVIATION/MARINE/BEACHES . Brotherton


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 26 mi47 min WNW 4.1 G 8
46253 27 mi17 min 63°F6 ft
46256 27 mi17 min 62°F5 ft
PFXC1 27 mi47 min WNW 6 G 8
PSXC1 28 mi47 min W 6 G 11
AGXC1 29 mi47 min W 16 G 19
BAXC1 29 mi47 min S 8.9 G 13
PFDC1 29 mi47 min WSW 6 G 9.9
OHBC1 - 9410660 - Los Angeles, CA 30 mi47 min 64°F1012.5 hPa (-1.0)
PXAC1 30 mi47 min W 7 G 9.9
46222 - San Pedro, CA (092) 33 mi24 min 62°F8 ft
46224 - Oceanside Offshore, CA (045) 39 mi17 min 63°F5 ft
ICAC1 - 9410840 - Santa Monica Pier 47 mi47 min NNW 2.9 G 5.1 62°F 62°F1012.4 hPa (-0.7)

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA9 mi54 minSW 310.00 miMostly Cloudy61°F53°F75%1012.7 hPa
Corona Airport, CA14 mi51 minN 010.00 miA Few Clouds57°F54°F90%1012.1 hPa
Chino, Chino Airport, CA18 mi54 minSW 66.00 miFog/Mist57°F53°F87%1012.4 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi54 minWSW 910.00 miA Few Clouds59°F50°F72%1012.1 hPa
Los Alamitos Army Airfield, CA19 mi1.8 hrsW 910.00 miPartly Cloudy60°F55°F87%1012.8 hPa
Riverside Municipal Airport, CA21 mi54 minN 08.00 miOvercast59°F53°F81%1011.3 hPa

Link to 5 minute data for KSNA

Wind History from SNA (wind in knots)
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Last 24hr3SE5SE4SE4E4E6E8E5E5E4SE6E5SE6CalmCalmSE4S4S9SW9S8SW7SW6W5SW3
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4CalmCalmS4CalmCalmCalmSW3355SW7SW6SW5
2 days agoS4SE3SE3CalmCalmCalmNE3CalmCalmCalmCalmCalmCalmCalmCalmCalmS4S5S8SW8SW8S7SW5SW4

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California
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Newport Bay Entrance
Click for Map
Sat -- 03:17 AM PST     2.27 feet Low Tide
Sat -- 06:47 AM PST     Sunrise
Sat -- 09:06 AM PST     Moonset
Sat -- 09:37 AM PST     6.20 feet High Tide
Sat -- 04:44 PM PST     Sunset
Sat -- 05:01 PM PST     -0.87 feet Low Tide
Sat -- 07:24 PM PST     Moonrise
Sat -- 11:47 PM PST     3.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.532.62.32.42.93.74.65.56.16.25.64.63.11.60.3-0.6-0.9-0.60.11.12.233.5

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California (2)
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Newport Bay Entrance
Click for Map
Sat -- 03:22 AM PST     2.33 feet Low Tide
Sat -- 06:47 AM PST     Sunrise
Sat -- 09:06 AM PST     Moonset
Sat -- 09:38 AM PST     6.07 feet High Tide
Sat -- 04:44 PM PST     Sunset
Sat -- 05:07 PM PST     -0.78 feet Low Tide
Sat -- 07:24 PM PST     Moonrise
Sat -- 11:52 PM PST     3.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.12.62.42.42.83.64.55.4665.64.63.21.80.5-0.4-0.8-0.60.11.12.133.5

Weather Map
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (21,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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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.