Monday, May29, 2017 L-36.com


Marine Weather and Tides
Mead Valley, CA

Version 3.4
What's New / NOTES
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 5:38AMSunset 7:54PM Sunday May 28, 2017 10:39 PM PDT (05:39 UTC) Moonrise 8:45AMMoonset 11:03PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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- 111 Pm Pdt Sun May 28 2017
Tonight..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 7 seconds and sw 1 to 2 ft at 17 seconds.
Memorial day..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft at 7 seconds and sw 2 ft at 17 seconds.
Mon night..Wind sw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 7 seconds and sw 2 ft at 16 seconds.
Tue..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 8 seconds and sw 2 ft at 15 seconds.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and sw 2 ft at 15 seconds.
Wed..Wind S 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 ft.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft and S 2 ft.
Thu..Wind variable less than 10 kt...becoming sw 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 2 ft.
Thu night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 2 ft.
Fri..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 2 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 2 to 3 ft.
PZZ700 111 Pm Pdt Sun May 28 2017
Synopsis for far southern california coast.. At 1 pm...a 1025 mb high 800 nm west of san diego and a 1009 mb low was near needles. Weak to moderate onshore flow will continue through Friday...with strongest winds during the afternoons and evenings. SWell will remain mixed with a 2 to 5 ft west swell and 2 ft south swell.

7 Day Forecast for Marine Location Near Mead Valley, CA
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location: 33.85, -117.33     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 290424 aaa
afdsgx
area forecast discussion
national weather service san diego ca
922 pm pdt Sun may 28 2017

Update
Coastal stratus has already developed this evening and is already
beginning to push into the western valleys. The 00z miramar sounding
shows that the marine inversion is still pretty shallow but has
grown stronger over the last day. Monday will be another warm day
inland, but near the beaches clouds may linger into the afternoon
keeping things on the cool side. The forecast database remains on
track this evening and no changes were made.

Synopsis
Weak high pressure aloft will bring warmer weather inland through
Tuesday, while the marine layer keeps the coast seasonal with areas
of night and morning low clouds and patchy fog. Cooler, with a
deeper marine layer and more extensive marine clouds midweek as a
low pressure trough develops over the west coast. Modest warming
returns by next weekend under weak ridging aloft.

Discussion For extreme southwestern california including orange...

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

(previous discussion)
patchy low clouds were observed over the coastal waters at midday,
but had cleared the beaches, otherwise the sky was clear across
socal. Marine clouds were extensive west of the islands.

Temperatures were running higher than yesterday inland, especially
at some of the higher elevations. At noon pst... Julian and descanso
raws sites were 18 degrees f higher than yesterday, anza was up 15
degrees as well. Surface pressure gradients were flat ksan to SW nv,
and about 6 mbs onshore to the lower deserts. Peak wind gusts were
below 25 mph at noon pst.

Very little change is forecast to the synoptic pattern through mon,
except for perhaps a weaker offshore sfc gradient from the ne. This
could result in better coastal marine stratus coverage Mon tue
mornings, especially given that it is climatologically favored, but
no guarantees.

High latitude ridging over the west will maintain a split flow in
the atmosphere through midweek. The weaker southern branch will
support weak ridging over socal and warmer weather through memorial
day, then transition again to cooler conditions as a weak upper
trough develops and amplifies the marine layer. The global models
show the pattern repeating again next weekend into the following
week. Weak ridging aloft will lead to warming into the weekend,
followed by low pressure aloft and cooler conditions early next week.

Aside from the fluctuations in daytime temperatures, the pattern
looks seasonal, with onshore flow, locally gusty winds over the
mts deserts at times, and nocturnal marine clouds varying in extent
and coverage over the coastal basin.

Aviation
290400z... Coast valleys... Bkn ovc stratus will continue to spread
overnight, extending from san diego county within 15-20 miles of the
coast through orange county by 08z. Bases will be 1000-1500 ft msl
with tops to 2000 ft msl with local vis 3-5 miles and some terrain
obscurations. Most of the inland empire will remain clear overnight.

Clearing at most coastal airports will occur 16z-19z mon, except
local bkn CIGS could occur Mon afternoon near the beaches. Stratus
will redevelop Mon evening.

Mountains deserts... Mostly clear with unrestricted vis through
Monday evening.

Marine
No hazardous marine weather is expected through Friday.

Skywarn
Skywarn activation is not requested.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public... Jad jmb
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 44 mi101 min 61°F3 ft
PRJC1 46 mi51 min WSW 9.9 G 11
46224 - Oceanside Offshore, CA (045) 47 mi39 min 64°F3 ft
PFXC1 47 mi51 min NW 2.9 G 4.1 62°F
46256 47 mi47 min 59°F2 ft
PSXC1 48 mi51 min NW 1.9 G 5.1
AGXC1 49 mi51 min WSW 9.9 G 11 60°F 1015.3 hPa
46253 49 mi39 min 62°F3 ft
BAXC1 49 mi51 min NW 4.1 G 5.1
PFDC1 49 mi51 min SSW 6 G 6

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Riverside / March Air Force Base, CA4 mi1.7 hrsNW 410.00 miFair67°F51°F58%1014 hPa
Riverside Municipal Airport, CA9 mi46 minW 710.00 miFair65°F55°F70%1013.6 hPa
Corona Airport, CA15 mi43 minNW 610.00 miFair64°F54°F70%1015.8 hPa
Chino, Chino Airport, CA18 mi46 minW 88.00 miFair64°F54°F70%1014.9 hPa
San Bernardino Intl. Airport, CA19 mi61 minWSW 510.00 miFair70°F52°F55%1014.9 hPa
Ontario, Ontario International Airport, CA20 mi46 minWSW 810.00 miA Few Clouds66°F54°F65%1014 hPa

Wind History from RIV (wind in knots)
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Last 24hrW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW5NW7W5NW4NW6NW11
G14
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1 day agoNW4NW5NW5NW5NW3CalmW5W5NW6W5CalmNW4NW4N7NW4CalmNW6NW9NW11NW9W10NW8NW5NW5
2 days agoNW4NW5NW5S7S8S4S6S5CalmS5CalmE3N4N3N7NW9N9W11W12NW9W10
G17
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Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Mon -- 05:42 AM PDT     Sunrise
Mon -- 07:09 AM PDT     -1.10 feet Low Tide
Mon -- 09:51 AM PDT     Moonrise
Mon -- 01:51 PM PDT     3.91 feet High Tide
Mon -- 06:48 PM PDT     2.10 feet Low Tide
Mon -- 07:53 PM PDT     Sunset
Mon -- 11:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.54.53.21.60.3-0.7-1.1-0.9-0.112.13.13.73.93.73.22.62.22.12.433.84.6

Tide / Current Tables for Newport Beach, Newport Bay Entrance, Corona del Mar, California (sub)
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Newport Beach
Click for Map
Mon -- 05:43 AM PDT     Sunrise
Mon -- 07:08 AM PDT     -1.01 feet Low Tide
Mon -- 09:52 AM PDT     Moonrise
Mon -- 02:00 PM PDT     3.94 feet High Tide
Mon -- 06:46 PM PDT     2.30 feet Low Tide
Mon -- 07:55 PM PDT     Sunset
Mon -- 11:55 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.54.63.21.70.3-0.6-1-0.8-0.112.13.13.73.93.83.32.82.42.32.63.23.94.7

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 (1,6,7,8)
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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.