Friday, May26, 2017 L-36.com


Marine Weather and Tides
La Quinta, 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 5:36AMSunset 7:48PM Friday May 26, 2017 12:15 AM PDT (07:15 UTC) Moonrise 6:40AMMoonset 8:57PM Illumination 0% Phase: New Moon; Moon at 1 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- 149 Pm Pdt Thu May 25 2017
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 11 seconds and sw 2 ft at 15 seconds. Slight chance of showers after midnight.
Fri..Wind S 10 kt...becoming W with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft at 11 seconds and sw 2 ft at 15 seconds. Slight chance of showers in the morning.
Fri night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 ft at 10 seconds and sw 2 ft at 14 seconds.
Sat..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 to 4 ft in the afternoon. Mixed swell W 1 ft at 10 seconds and sw 2 ft at 13 seconds.
Sat night..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and sw 1 ft at 14 seconds.
Sun..Wind W 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft and sw 1 to 2 ft.
Sun night..Wind W 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and sw 1 ft.
Memorial day..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 1 to 2 ft.
Mon night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft.
Tue..Wind S 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft.
Tue night..Wind S 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 sw 2 ft.
PZZ700 149 Pm Pdt Thu May 25 2017
Synopsis for far southern california coast.. At 2 pm...a 1037 mb high was about 900 nm W of san francisco and a 998 mb low was near las vegas. Light to moderate onshore flow will continue through this weekend.

7 Day Forecast for Marine Location Near La Quinta, CA
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location: 33.64, -116.27     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 260436
afdsgx
area forecast discussion
national weather service san diego ca
936 pm pdt Thu may 25 2017

Synopsis
Cooler weather is in the forecast through Friday as a weak trough
of low pressure moves through the region. Low clouds will lie
across the coastal slopes and passes tonight. Strong and gusty
winds will occur in the mountains and deserts through early
Friday. Also, the trough may create scattered light showers over
and west of the mountains late tonight through early Friday
morning. High pressure aloft will rebuild over the west this
holiday weekend for warmer weather and a shallower marine layer.

Another cooling trend may begin next Tuesday as another trough
develops near southern california.

Discussion For extreme southwestern california including orange...

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

Update...

marine layer stratus quickly filled back in along the coast,
to the valleys and even into the passes and coastal mountain
slopes. The 00z san diego sounding showed the marine layer depth
to about 4,000 ft. It continues windy through eastern portions of
the passes and portions of the deserts. Whitewater recorded a
gust to 71 mph, but locales across the northern coachella valley
and in the san diego desert are predominately in the 30 to 40 mph
range.

A few light showers are possible tonight west of the mountains as
the marine layer deepens. Hi-res models continue to point to this
occurring with amounts of generally just a few hundredths of an
inch. See previous discussion below for additional forecast
details.

Previous discussion (issued at 128 pm pdt Thu may 25 2017)...

afternoon visible satellite shows that the valleys have mostly
cleared, with stubborn stratus over the coast and orange county.

Water vapor satellite shows a short-wave trough offshore of point
conception and a deeper, stronger trough over the inter-mountain
west. The 12z miramar sounding showed significant deepening of the
marine layer, with a 10 deg c inversion noted at around 3500 feet
msl. Onshore flow continues to strengthen as well, with onshore
pressure gradients from san diego to las vegas up to 16.0 mb,
compared to 10.8 mb at this time yesterday. Winds in the mountain
ridges, desert slopes and passes are gusting around 30-40 mph,
with the highest gusts of 57 mph in the san gorgonio pass area.

A wind advisory continues for the san gorgonio pass area and the
san diego county deserts through 8 am Friday, with gusts of 55 mph
and locally 65 mph likely. Also, with the strong onshore flow and
deep marine layer, typically this results in only partial
clearing of marine layer clouds at best during the day. The marine
layer will deepen further tonight, up to around 5000 feet msl.

The short-wave moving through the region will likely bring
scattered light showers over and west of the mountains tonight
into early Friday morning, with scattered amounts of 0.01-0.05
inches. Many places may only see a trace. The colder air mass will
result in highs 5-10 degrees below normal today and up to 15
degrees below normal on Friday.

A ridge to the west will start to strengthen and build over the
region Saturday through Monday, resulting in increasingly warmer
days and a shallower marine layer. By Sunday, highs will reach
back above normal, and then perhaps 5-10 degrees above normal on
Monday. Night and morning stratus will likely only affect the
coastal and western valley areas.

A trough will develop over southern california baja Tuesday
through Thursday, with a closed low perhaps developing. This may
result in another cooling trend and perhaps some deepening of the
marine layer.

Aviation
260430z... Coast valleys coastal mountain slopes... Low clouds will
gradually fill in all areas from the coastal mountain slopes west
past the coast through 06z with heights gradually lowering from 3500
ft msl to mostly 2500 ft msl between 05z and 08z. Tops will be 4500-
5500 ft msl. Areas of drizzle light showers will occur between 08z
and 16z fri. Areas of terrain obscurations will occur on the slopes
below 5500 ft msl through 20z fri. Gradual clearing will occur 17z-
21z Fri with most cloud bases above 3000 ft msl by 17z. Stratus
will likely return Fri night but with lower cloud bases.

Mountains deserts... Areas of sw-w winds with surface gusts 35-50 kt
along the desert slopes foothills and through the passes will
continue through Friday morning with moderate to strong up and
downdrafts along with pockets of wind shear over and NE E of the
mountains.

Marine
No hazardous marine weather is expected through Tuesday.

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

Sgx watches warnings advisories
Ca... Wind advisory until 8 am pdt Friday for san diego county deserts-
san gorgonio pass near banning.

Pz... None.

Public... Gregoria (update) harrison
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 68 mi78 min 62°F2 ft
46224 - Oceanside Offshore, CA (045) 71 mi46 min 64°F3 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA5 mi24 minNNW 17 G 2710.00 miFair69°F46°F45%1004 hPa
Palm Springs Regional Airport, CA18 mi23 minNW 17 G 2010.00 miFair73°F42°F33%1004.2 hPa

Wind History from TRM (wind in knots)
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1 day agoN13NW9NW11NW11NW8NW7NW11NW8NW6SW4S4NE36NW9N13NW8
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2 days agoNW14NW13NW12NW7NE4N6N5N8N7N6CalmSE65
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Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Fri -- 04:31 AM PDT     -1.68 feet Low Tide
Fri -- 05:43 AM PDT     Sunrise
Fri -- 06:47 AM PDT     Moonrise
Fri -- 10:50 AM PDT     4.27 feet High Tide
Fri -- 04:02 PM PDT     1.16 feet Low Tide
Fri -- 07:51 PM PDT     Sunset
Fri -- 09:02 PM PDT     Moonset
Fri -- 10:12 PM PDT     6.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.32.50.7-0.8-1.6-1.6-0.80.41.93.244.33.93.12.21.51.21.52.33.656.16.66.4

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Fri -- 04:25 AM PDT     -1.55 feet Low Tide
Fri -- 05:43 AM PDT     Sunrise
Fri -- 06:46 AM PDT     Moonrise
Fri -- 10:48 AM PDT     4.09 feet High Tide
Fri -- 03:49 PM PDT     1.33 feet Low Tide
Fri -- 07:48 PM PDT     Sunset
Fri -- 08:59 PM PDT     Moonset
Fri -- 10:05 PM PDT     6.60 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.22.40.6-0.8-1.5-1.4-0.70.61.93.13.94.13.732.11.51.31.72.63.95.26.26.66.3

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 (3,6,7,8)
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Ground Weather Radar Station San Diego, 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.