Sunday, January19, 2020
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Marine Weather and Tides
Sunset Beach, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:54AMSunset 5:11PM Sunday January 19, 2020 1:56 AM PST (09:56 UTC) Moonrise 3:06AMMoonset 2:01PM Illumination 33% Phase: Waning Crescent; Moon at 24 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- 816 Pm Pst Sat Jan 18 2020
Tonight..NW winds 5 to 10 kt, becoming ne 10 to 15 kt after midnight. Wind waves 2 ft or less. W swell 2 ft at 10 seconds.
Sun..From point mugu to santa Monica, ne winds 15 to 20 kt with local gusts to 25 kt, becoming W around 10 kt in the afternoon. Elsewhere, winds variable 10 kt or less becoming W 10 to 15 kt in the afternoon. Wind waves 2 to 3 ft. W swell 2 ft at 13 seconds.
Sun night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 15 seconds.
Mon..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 14 seconds.
Mon night..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 14 seconds. Slight chance of showers after midnight.
Tue..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 15 seconds. Slight chance of showers.
Tue night..W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 15 seconds, building to 3 to 5 ft at 15 seconds after midnight. Slight chance of showers in the evening.
Wed..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
Thu..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 4 ft.
PZZ600 816 Pm Pst Sat Jan 18 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 02z or 6 pm pst, a 1024 mb high was centered about 250 nm W of point conception, with a ridge extending to a 1040 mb high over E idaho. Weak ne winds will affect portions of the nearshore waters late tonight into Sun morning.


7 Day Forecast for Marine Location Near Sunset Beach, CA
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location: 33.71, -118.06     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 190541 AAA AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 937 PM PST Sat Jan 18 2020

SYNOPSIS. Building high pressure aloft and offshore flow will bring warmer weather through Sunday. On Monday, it will be cooler as thick high clouds from the subtropics snuff out most of the sun. There may even be some sprinkles or light rain showers as this moisture drifts overhead through Tuesday. A deep marine layer on Wednesday will continue the cooling, along with the possibility of some scattered, light rain showers. Fair, dry, and warmer weather returns later in the week. The next chance of

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

Evening Update:

Besides bumping up the sky cover a bit overnight due to the abundant high clouds streaming into the region from the Subtropical Pacific, no major changes were needed to the forecast this evening. Temperatures are trending warmer overall across the area this evening from yesterday. This is a result of weak warming aloft and abundant high cloudiness limiting radiational cooling. Relative humidity is also trending down as well. Conditions will become a bit even milder Sunday and drier as well given additional slight warming aloft. Sunday will likely be the warmest day of the next 7 days for most communities, with upper 60s near the coast, mid 70s inland and lower deserts, and 50s and 60s in the mountains and high desert.

Previous Forecast Discussion (issued at 102 PM PST):

It was a chilly start this morning as many valley temperatures fell into the upper 30s or low 40s. Abundant sunshine today remedied that quickly, so by midday many temp reports were in the upper 60s. Helping out was offshore flow, drying and warming the air further near the sfc west of the mts At Noon PST. the sfc pressure gradient had reached -8 mbS (SW NV to KSAN) and peak NE wind gusts had reached 45-50 MPH near the passes. Based on the local WRF model, these winds will continue gusty along the coastal foothills and through the passes into Sunday before weakening late in the day.

Skies will remain mostly clear overnight, and with low dewpoints, it will be quite cool again by morning, but overall, not as cold as last night. A warmer day is on tap for Sunday as high clouds begin to thicken from the west. Many areas should top 70F. Those clouds were visible today in IR imagery well off the Coast. Cloud signatures near 30N and 140W, were indicative of cyclogenesis and better organization of this feature. Several operational model runs show it peaking well offshore this weekend, then weakening as it moves over SoCal, but many maintain at least some light precip as the remnants drift over us.

Thick high clouds are likley on Monday ahead of this system and there is a chance of sprinkles or light showers for now. Tue night into Wed morning another weak disturbance from the northwest deepens the marine layer with more light showers possible, mainly along and west of the mts. None of this is expected to amount to much, but it could get things wet at times and limited sun will keep it cooler during the days.

After Wednesday, another ridge builds along the West Coast bringing SoCal fair and warmer weather to wrap up the week, but the outlook is clouded a bit into the following week. It looks like about half of the 12Z GFS ensemble members turn wet just after the weekend as a North Pacific shortwave dives down the Coast. Both the ECMWF/GFS operational runs tracks are not favorable for heavy precipitation here, but the ECMWF model, as usual, is considerably stronger with the wave and more it's ensemble members generate precip.

AVIATION.

190430Z . High clouds at/above 20,000 ft with unrestricted vis through Sunday. Locally gusty winds around 25-30 kts expected in the mountains through Sunday morning, subsiding in the afternoon.

MARINE. A fresh NW swell will generate wave heights of 6-8 feet Wednesday in the far southwestern portions of the Outer Waters, south of San Clemente Island. Otherwise, no hazardous marine conditions are expected through Thursday.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . NONE.



PUBLIC . 10/JMB AVIATION/MARINE . Connolly


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 7 mi57 min N 5.1 G 7
46256 8 mi57 min 59°F2 ft
PFXC1 9 mi57 min N 5.1 G 7
AGXC1 10 mi57 min NNW 6 G 7
BAXC1 10 mi57 min NNE 6 G 7
PFDC1 10 mi57 min NW 8 G 8
PSXC1 10 mi57 min N 4.1 G 5.1
46253 11 mi57 min 61°F3 ft
OHBC1 - 9410660 - Los Angeles, CA 11 mi63 min 60°F1020.7 hPa
PXAC1 11 mi57 min NW 5.1 G 6
46222 - San Pedro, CA (092) 15 mi34 min 60°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 31 mi63 min NNE 4.1 G 8 63°F 59°F1020.3 hPa
46221 - Santa Monica Bay, CA (028) 32 mi61 min 60°F3 ft
46224 - Oceanside Offshore, CA (045) 48 mi57 min 60°F2 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, CA6 mi2 hrsN 010.00 miFair46°F34°F64%1020.9 hPa
Long Beach, Long Beach Airport, CA10 mi64 minWNW 310.00 miFair49°F37°F66%1020.3 hPa
John Wayne-Orange County Airport, CA10 mi64 minN 010.00 miFair53°F43°F69%1019.9 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi64 minN 010.00 miFair48°F36°F63%1019.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA21 mi64 minN 010.00 miFair55°F28°F36%1020.4 hPa
Los Angeles / USC Campus Downtown, CA24 mi65 minNNE 410.00 miFair58°F25°F28%1020.3 hPa
Los Angeles, Los Angeles International Airport, CA24 mi64 minVar 310.00 miFair58°F26°F29%1020.1 hPa

Link to 5 minute data for KSLI

Wind History from SLI (wind in knots)
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Last 24hrCalmCalmN3N4CalmNW3CalmCalmCalmW3SW8SW8SW7S5CalmSW5CalmNW5NW4CalmCalmCalmCalmCalm
1 day agoN3NE5NE4CalmCalmN4CalmCalmN3NE6CalmSW8S6S6SW8SW4CalmCalmCalmCalmCalmNE4CalmCalm
2 days agoE4CalmE3NE4NE6CalmCalmE3E4S3S6S8SW7SW10SW5SW8SW6CalmCalmS4S9S4SE3E5

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Sun -- 02:06 AM PST     Moonrise
Sun -- 05:47 AM PST     4.65 feet High Tide
Sun -- 06:55 AM PST     Sunrise
Sun -- 01:00 PM PST     Moonset
Sun -- 01:20 PM PST     0.11 feet Low Tide
Sun -- 05:10 PM PST     Sunset
Sun -- 07:25 PM PST     2.78 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.62.33.244.54.64.43.82.91.91.10.40.10.20.61.31.92.52.82.72.41.91.5

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Sun -- 02:05 AM PST     Moonrise
Sun -- 05:10 AM PST     3.02 feet High Tide
Sun -- 06:55 AM PST     Sunrise
Sun -- 01:00 PM PST     Moonset
Sun -- 01:55 PM PST     0.04 feet Low Tide
Sun -- 05:10 PM PST     Sunset
Sun -- 06:48 PM PST     1.81 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.61.222.7332.72.31.81.30.80.40.100.30.81.31.71.81.71.41.10.7

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 (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 numerous 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.