Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Dana Point, 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 6:16AMSunset 7:31PM Sunday August 20, 2017 5:55 PM PDT (00:55 UTC) Moonrise 5:03AMMoonset 6:57PM Illumination 2% Phase: Waning Crescent; Moon at 28 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 1249 Pm Pdt Sun Aug 20 2017
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and sw 2 to 3 ft at 13 seconds. Patchy drizzle after midnight.
Mon..Wind variable less than 10 kt...becoming W to 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 2 to 3 ft at 13 seconds. Patchy drizzle in the morning.
Mon night..Wind nw 10 kt. Wind waves 2 ft or less. Mixed swell nw 2 ft at 9 seconds and S 2 ft at 12 seconds.
Tue..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell nw 2 to 3 ft at 9 seconds and S 2 ft at 12 seconds.
Tue night..Wind nw 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 2 ft or less. Mixed swell W 3 ft at 15 seconds and S 2 ft at 11 seconds.
Wed..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Wed night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 1 to 2 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft.
Fri..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft and sw 1 to 2 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 1 ft.
PZZ700 1249 Pm Pdt Sun Aug 20 2017
Synopsis for the far southern california coast.. At 12 pm pdt, a 1014 mb high was about 30 nm northwest of san diego, and a 1006 mb low was near needles. Weak onshore flow will continue through Friday, except for briefly stronger winds late Tuesday.

7 Day Forecast for Marine Location Near Dana Point, CA
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location: 33.45, -117.68     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 202121
afdsgx
area forecast discussion
national weather service san diego ca
221 pm pdt Sun aug 20 2017

Synopsis
A weak low pressure system off the southern california coast will
keep high temperatures a few degrees below average through Monday
with areas of night and morning coastal low clouds and patchy fog
and drizzle extending into portions of the inland valleys. Mid
level monsoonal moisture to the east and north will bring some
afternoon clouds to the mountains with a slight chance for
thunderstorms for the san bernardino county mountains and adjacent
deserts for Monday afternoon. There will be warming to near
average high temperatures for Tuesday through Thursday... Then a
few degrees above average for next weekend.

Discussion For extreme southwestern california including orange...

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

the weak low pres trough continues just off the coast of southern
california with an unseasonably deep marine layer remaining in
place. Coastal low clouds will develop this evening over the
coastal waters and push inland well into the western valleys
overnight. Low clouds will linger near the coast through late
Monday morning, putting a damper on the eclipse viewing
opportunities there, but away from the coast conditions will be
mostly sunny by the time of partial eclipse in southern
california.

A weak shortwave will swing across SE california Monday afternoon
and could generate a few showers and thunderstorms over our
northern mountains, with marginal mid level moisture there,
mainly affecting san bernardino and riverside counties. Any
convection will quickly die off after dark.

Continued cool with unseasonably troughy pattern along the coast
for much of the new week with temperatures generally settling to
around normal levels.

Some ridging may develop towards the end of the week and into next
weekend, bringing a slight warmup along with a bit of mid level
moisture on a return flow pattern from the se. No weather was
added to the forecast however during this cycle as the chances are
too low at this time.

Aviation
201927z... Coast valleys... Through 21 0000 utc, mostly skc and p6sm
vis. 21 0000-1500 utc, stratus re-developing and gradually pushing
20-50 sm inland again, with bases around 1500-2200 ft msl, tops
around 2200-3000 ft msl, and areas of vis 3-5 sm in the inland
valleys. Forecast marine layer inversion strength of 5 deg c at
21 1200 utc. Gradual clearing of stratus during the 21 1500-1900 utc
time-frame.

Mountains deserts... P6sm vis and mostly skc through Monday morning.

Marine
No hazardous marine weather is expected through Friday.

Beaches
A 3 ft 14 sec period southwest swell from 200 degrees will continue
today, producing surf of 3 to 5 ft north of oceanside. Strong rip
currents will accompany the elevated surf. High tides this evening
will peak around 6.7-6.9 feet, possibly leading to minor tidal
overflow of low-lying coastal areas. A beach hazards statement
remains in effect through this evening.

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

Sgx watches warnings advisories
Ca... Beach hazards statement until midnight pdt tonight for orange
county coastal areas-san diego county coastal areas.

Pz... None.

Public... Brotherton
aviation marine... Harrison


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 20 mi88 min 70°F2 ft
46224 - Oceanside Offshore, CA (045) 22 mi26 min 72°F2 ft
46253 28 mi26 min 70°F2 ft
PRJC1 33 mi38 min WSW 14 G 16
46256 33 mi34 min 71°F3 ft
PFXC1 35 mi38 min WSW 11 G 12 73°F
PSXC1 36 mi38 min SW 9.9 G 13
46222 - San Pedro, CA (092) 36 mi26 min 68°F2 ft
OHBC1 - 9410660 - Los Angeles, CA 37 mi38 min 68°F1012.1 hPa
46225 - Torrey Pines Outer, CA (100) 39 mi35 min 73°F2 ft
LJPC1 - La Jolla, CA (073) 46 mi36 min W 5.1 1 ft
46254 46 mi38 min 72°F1 ft
LJAC1 - 9410230 - La Jolla, CA 46 mi44 min W 5.1 G 6 69°F 73°F1012 hPa
46258 49 mi26 min 73°F3 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mcolf Camp Pendleton (Red Beach), CA17 mi60 minno data9.00 miPartly Cloudy73°F62°F69%1020.8 hPa
John Wayne-Orange County Airport, CA19 mi63 minSW 9 G 1510.00 miA Few Clouds73°F61°F66%1011.8 hPa
Oceanside, Camp Pendleton, Marine Corps Air Station, CA20 mi61 minSW 97.00 miFair63°F0°F%1011.8 hPa
Oceanside, Oceanside Municipal Airport, CA24 mi64 minW 1010.00 miOvercast72°F62°F71%1012 hPa

Wind History from NXF (wind in knots)
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Last 24hr------------------------------------------------
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2 days ago------------------------------------------------

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Sun -- 03:07 AM PDT     -1.09 feet Low Tide
Sun -- 05:02 AM PDT     Moonrise
Sun -- 06:16 AM PDT     Sunrise
Sun -- 09:23 AM PDT     4.83 feet High Tide
Sun -- 02:49 PM PDT     1.19 feet Low Tide
Sun -- 06:56 PM PDT     Moonset
Sun -- 07:30 PM PDT     Sunset
Sun -- 08:55 PM PDT     6.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.20.6-0.6-1.1-0.80.21.634.24.84.74.13.12.11.41.21.62.745.46.46.76.35.1

Tide / Current Tables for Newport Beach, Newport Bay Entrance, Corona del Mar, California (sub)
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Newport Beach
Click for Map
Sun -- 03:06 AM PDT     -0.94 feet Low Tide
Sun -- 05:03 AM PDT     Moonrise
Sun -- 06:17 AM PDT     Sunrise
Sun -- 09:29 AM PDT     4.68 feet High Tide
Sun -- 02:45 PM PDT     1.41 feet Low Tide
Sun -- 06:58 PM PDT     Moonset
Sun -- 07:31 PM PDT     Sunset
Sun -- 08:55 PM PDT     6.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.20.6-0.5-0.9-0.70.31.52.944.64.64.13.22.21.61.41.92.94.25.46.36.66.25.1

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 (20,4,5,8)
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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.